6. X-Tinction Agenda

100問 • 7ヶ月前

問題一覧

A file-hosting service uses Amazon Simple Storage Service (Amazon S3) under the hood to power its storage offerings. Currently all the customer files are uploaded directly under a single Amazon S3 bucket. The engineering team has started seeing scalability issues where customer file uploads have started failing during the peak access hours with more than 5000 requests per second. Which of the following is the MOST resource efficient and cost-optimal way of addressing this issue?

Change the application architecture to create customer-specific custom prefixes within the single Amazon S3 bucket and then upload the daily files into those prefixed locations

An ivy-league university is assisting NASA to find potential landing sites for exploration vehicles of unmanned missions to our neighboring planets. The university uses High Performance Computing (HPC) driven application architecture to identify these landing sites. Which of the following Amazon EC2 instance topologies should this application be deployed on?

The Amazon EC2 instances should be deployed in a cluster placement group so that the underlying workload can benefit from low network latency and high network throughput

The engineering team at an e-commerce company wants to establish a dedicated, encrypted, low latency, and high throughput connection between its data center and AWS Cloud. The engineering team has set aside sufficient time to account for the operational overhead of establishing this connection. As a solutions architect, which of the following solutions would you recommend to the company?

Use AWS Direct Connect plus virtual private network (VPN) to establish a connection between the data center and AWS Cloud

Which of the following feature of an Amazon S3 bucket can only be suspended and not disabled once it have been enabled?

Versioning

A retail company's dynamic website is hosted using on-premises servers in its data center in the United States. The company is launching its website in Asia, and it wants to optimize the website loading times for new users in Asia. The website's backend must remain in the United States. The website is being launched in a few days, and an immediate solution is needed. What would you recommend?

Use Amazon CloudFront with a custom origin pointing to the on-premises servers

The engineering team at a data analytics company has observed that its flagship application functions at its peak performance when the underlying Amazon Elastic Compute Cloud (Amazon EC2) instances have a CPU utilization of about 50%. The application is built on a fleet of Amazon EC2 instances managed under an Auto Scaling group. The workflow requests are handled by an internal Application Load Balancer that routes the requests to the instances. As a solutions architect, what would you recommend so that the application runs near its peak performance state?

Configure the Auto Scaling group to use target tracking policy and set the CPU utilization as the target metric with a target value of 50%

A large financial institution operates an on-premises data center with hundreds of petabytes of data managed on Microsoft’s Distributed File System (DFS). The CTO wants the organization to transition into a hybrid cloud environment and run data-intensive analytics workloads that support DFS. Which of the following AWS services can facilitate the migration of these workloads?

Amazon FSx for Windows File Server

A gaming company is developing a mobile game that streams score updates to a backend processor and then publishes results on a leaderboard. The company has hired you as an AWS Certified Solutions Architect Associate to design a solution that can handle major traffic spikes, process the mobile game updates in the order of receipt, and store the processed updates in a highly available database. The company wants to minimize the management overhead required to maintain the solution. Which of the following will you recommend to meet these requirements?

Push score updates to Amazon Kinesis Data Streams which uses an AWS Lambda function to process these updates and then store these processed updates in Amazon DynamoDB

A gaming company is looking at improving the availability and performance of its global flagship application which utilizes User Datagram Protocol and needs to support fast regional failover in case an AWS Region goes down. The company wants to continue using its own custom Domain Name System (DNS) service. Which of the following AWS services represents the best solution for this use-case?

AWS Global Accelerator

The product team at a startup has figured out a market need to support both stateful and stateless client-server communications via the application programming interface (APIs) developed using its platform. You have been hired by the startup as a solutions architect to build a solution to fulfill this market need using Amazon API Gateway. Which of the following would you identify as correct?

Amazon API Gateway creates RESTful APIs that enable stateless client-server communication and Amazon API Gateway also creates WebSocket APIs that adhere to the WebSocket protocol, which enables stateful, full-duplex communication between client and server

An Electronic Design Automation (EDA) application produces massive volumes of data that can be divided into two categories. The 'hot data' needs to be both processed and stored quickly in a parallel and distributed fashion. The 'cold data' needs to be kept for reference with quick access for reads and updates at a low cost. Which of the following AWS services is BEST suited to accelerate the aforementioned chip design process?

Amazon FSx for Lustre

A logistics company is building a multi-tier application to track the location of its trucks during peak operating hours. The company wants these data points to be accessible in real-time in its analytics platform via a REST API. The company has hired you as an AWS Certified Solutions Architect Associate to build a multi-tier solution to store and retrieve this location data for analysis. Which of the following options addresses the given use case?

Leverage Amazon API Gateway with Amazon Kinesis Data Analytics

The engineering team at an in-home fitness company is evaluating multiple in-memory data stores with the ability to power its on-demand, live leaderboard. The company's leaderboard requires high availability, low latency, and real-time processing to deliver customizable user data for the community of users working out together virtually from the comfort of their home. As a solutions architect, which of the following solutions would you recommend? (Select two)

Power the on-demand, live leaderboard using Amazon DynamoDB with DynamoDB Accelerator (DAX) as it meets the in-memory, high availability, low latency requirements, Power the on-demand, live leaderboard using Amazon ElastiCache for Redis as it meets the in-memory, high availability, low latency requirements

The solo founder at a tech startup has just created a brand new AWS account. The founder has provisioned an Amazon EC2 instance 1A which is running in AWS Region A. Later, he takes a snapshot of the instance 1A and then creates a new Amazon Machine Image (AMI) in Region A from this snapshot. This AMI is then copied into another Region B. The founder provisions an instance 1B in Region B using this new AMI in Region B. At this point in time, what entities exist in Region B?

1 Amazon EC2 instance, 1 AMI and 1 snapshot exist in Region B

A data analytics company measures what the consumers watch and what advertising they’re exposed to. This real-time data is ingested into its on-premises data center and subsequently, the daily data feed is compressed into a single file and uploaded on Amazon S3 for backup. The typical compressed file size is around 2 gigabytes. Which of the following is the fastest way to upload the daily compressed file into Amazon S3?

Upload the compressed file using multipart upload with Amazon S3 Transfer Acceleration (Amazon S3TA)

A software engineering intern at an e-commerce company is documenting the process flow to provision Amazon EC2 instances via the Amazon EC2 API. These instances are to be used for an internal application that processes Human Resources payroll data. He wants to highlight those volume types that cannot be used as a boot volume. Can you help the intern by identifying those storage volume types that CANNOT be used as boot volumes while creating the instances? (Select two)

Throughput Optimized Hard disk drive (st1), Cold Hard disk drive (sc1)

A research group runs its flagship application on a fleet of Amazon EC2 instances for a specialized task that must deliver high random I/O performance. Each instance in the fleet would have access to a dataset that is replicated across the instances by the application itself. Because of the resilient application architecture, the specialized task would continue to be processed even if any instance goes down, as the underlying application would ensure the replacement instance has access to the required dataset. Which of the following options is the MOST cost-optimal and resource-efficient solution to build this fleet of Amazon EC2 instances?

Use Instance Store based Amazon EC2 instances

A company is in the process of migrating its on-premises SMB file shares to AWS so the company can get out of the business of managing multiple file servers across dozens of offices. The company has 200 terabytes of data in its file servers. The existing on-premises applications and native Windows workloads should continue to have low latency access to this data which needs to be stored on a file system service without any disruptions after the migration. The company also wants any new applications deployed on AWS to have access to this migrated data. Which of the following is the best solution to meet this requirement?

Use Amazon FSx File Gateway to provide low-latency, on-premises access to fully managed file shares in Amazon FSx for Windows File Server. The applications deployed on AWS can access this data directly from Amazon FSx in AWS

A junior scientist working with the Deep Space Research Laboratory at NASA is trying to upload a high-resolution image of a nebula into Amazon S3. The image size is approximately 3 gigabytes. The junior scientist is using Amazon S3 Transfer Acceleration (Amazon S3TA) for faster image upload. It turns out that Amazon S3TA did not result in an accelerated transfer. Given this scenario, which of the following is correct regarding the charges for this image transfer?

The junior scientist does not need to pay any transfer charges for the image upload

A telecom company operates thousands of hardware devices like switches, routers, cables, etc. The real-time status data for these devices must be fed into a communications application for notifications. Simultaneously, another analytics application needs to read the same real-time status data and analyze all the connecting lines that may go down because of any device failures. As an AWS Certified Solutions Architect – Associate, which of the following solutions would you suggest, so that both the applications can consume the real-time status data concurrently?

Amazon Kinesis Data Streams

The sourcing team at the US headquarters of a global e-commerce company is preparing a spreadsheet of the new product catalog. The spreadsheet is saved on an Amazon Elastic File System (Amazon EFS) created in us-east-1 region. The sourcing team counterparts from other AWS regions such as Asia Pacific and Europe also want to collaborate on this spreadsheet. As a solutions architect, what is your recommendation to enable this collaboration with the LEAST amount of operational overhead?

The spreadsheet on the Amazon Elastic File System (Amazon EFS) can be accessed in other AWS regions by using an inter-region VPC peering connection

A company uses Amazon DynamoDB as a data store for various kinds of customer data, such as user profiles, user events, clicks, and visited links. Some of these use-cases require a high request rate (millions of requests per second), low predictable latency, and reliability. The company now wants to add a caching layer to support high read volumes. As a solutions architect, which of the following AWS services would you recommend as a caching layer for this use-case? (Select two)

Amazon ElastiCache, Amazon DynamoDB Accelerator (DAX)

What is true about Amazon RDS Read Replicas encryption?

If the master database is encrypted, the read replicas are encrypted

A company is developing a global healthcare application that requires the least possible latency for database read/write operations from users in several geographies across the world. The company has hired you as an AWS Certified Solutions Architect Associate to build a solution using Amazon Aurora that offers an effective recovery point objective (RPO) of seconds and a recovery time objective (RTO) of a minute. Which of the following options would you recommend?

Set up an Amazon Aurora Global Database cluster

A big data consulting firm needs to set up a data lake on Amazon S3 for a Health-Care client. The data lake is split in raw and refined zones. For compliance reasons, the source data needs to be kept for a minimum of 5 years. The source data arrives in the raw zone and is then processed via an AWS Glue based extract, transform, and load (ETL) job into the refined zone. The business analysts run ad-hoc queries only on the data in the refined zone using Amazon Athena. The team is concerned about the cost of data storage in both the raw and refined zones as the data is increasing at a rate of 1 terabyte daily in each zone. As a solutions architect, which of the following would you recommend as the MOST cost-optimal solution? (Select two)

Use AWS Glue ETL job to write the transformed data in the refined zone using a compressed file format, Setup a lifecycle policy to transition the raw zone data into Amazon S3 Glacier Deep Archive after 1 day of object creation

Your company has deployed an application that will perform a lot of overwrites and deletes on data and require the latest information to be available anytime data is read via queries on database tables. As a Solutions Architect, which database technology will you recommend?

Amazon Relational Database Service (Amazon RDS)

A financial services company wants a single log processing model for all the log files (consisting of system logs, application logs, database logs, etc) that can be processed in a serverless fashion and then durably stored for downstream analytics. The company wants to use an AWS managed service that automatically scales to match the throughput of the log data and requires no ongoing administration. As a solutions architect, which of the following AWS services would you recommend solving this problem?

Amazon Kinesis Data Firehose

An IT company is working on client engagement to build a real-time data analytics tool for the Internet of Things (IoT) data. The IoT data is funneled into Amazon Kinesis Data Streams which further acts as the source of a delivery stream for Amazon Kinesis Firehose. The engineering team has now configured a Kinesis Agent to send IoT data from another set of devices to the same Amazon Kinesis Firehose delivery stream. They noticed that data is not reaching Kinesis Firehose as expected. As a solutions architect, which of the following options would you attribute as the MOST plausible root cause behind this issue?

Kinesis Agent cannot write to Amazon Kinesis Firehose for which the delivery stream source is already set as Amazon Kinesis Data Streams

Your company has an on-premises Distributed File System Replication (DFSR) service to keep files synchronized on multiple Windows servers, and would like to migrate to AWS cloud. What do you recommend as a replacement for the DFSR?

Amazon FSx for Windows File Server

A Machine Learning research group uses a proprietary computer vision application hosted on an Amazon EC2 instance. Every time the instance needs to be stopped and started again, the application takes about 3 minutes to start as some auxiliary software programs need to be executed so that the application can function. The research group would like to minimize the application boostrap time whenever the system needs to be stopped and then started at a later point in time. As a solutions architect, which of the following solutions would you recommend for this use-case?

Use Amazon EC2 Instance Hibernate

An analytics company wants to improve the performance of its big data processing workflows running on Amazon Elastic File System (Amazon EFS). Which of the following performance modes should be used for Amazon EFS to address this requirement?

Max I/O

You are establishing a monitoring solution for desktop systems, that will be sending telemetry data into AWS every 1 minute. Data for each system must be processed in order, independently, and you would like to scale the number of consumers to be possibly equal to the number of desktop systems that are being monitored. What do you recommend?

Use an Amazon Simple Queue Service (Amazon SQS) FIFO (First-In-First-Out) queue, and make sure the telemetry data is sent with a Group ID attribute representing the value of the Desktop ID

An engineering team wants to examine the feasibility of the user data feature of Amazon EC2 for an upcoming project. Which of the following are true about the Amazon EC2 user data configuration? (Select two)

By default, user data runs only during the boot cycle when you first launch an instance, By default, scripts entered as user data are executed with root user privileges

A silicon valley based startup has a content management application with the web-tier running on Amazon EC2 instances and the database tier running on Amazon Aurora. Currently, the entire infrastructure is located in us-east-1 region. The startup has 90% of its customers in the US and Europe. The engineering team is getting reports of deteriorated application performance from customers in Europe with high application load time. As a solutions architect, which of the following would you recommend addressing these performance issues? (Select two)

Setup another fleet of Amazon EC2 instances for the web tier in the eu-west-1 region. Enable latency routing policy in Amazon Route 53, Create Amazon Aurora read replicas in the eu-west-1 region

A media company has created an AWS Direct Connect connection for migrating its flagship application to the AWS Cloud. The on-premises application writes hundreds of video files into a mounted NFS file system daily. Post-migration, the company will host the application on an Amazon EC2 instance with a mounted Amazon Elastic File System (Amazon EFS) file system. Before the migration cutover, the company must build a process that will replicate the newly created on-premises video files to the Amazon EFS file system. Which of the following represents the MOST operationally efficient way to meet this requirement?

Configure an AWS DataSync agent on the on-premises server that has access to the NFS file system. Transfer data over the AWS Direct Connect connection to an AWS PrivateLink interface VPC endpoint for Amazon EFS by using a private VIF. Set up an AWS DataSync scheduled task to send the video files to the Amazon EFS file system every 24 hours

An IT company has an Access Control Management (ACM) application that uses Amazon RDS for MySQL but is running into performance issues despite using Read Replicas. The company has hired you as a solutions architect to address these performance-related challenges without moving away from the underlying relational database schema. The company has branch offices across the world, and it needs the solution to work on a global scale. Which of the following will you recommend as the MOST cost-effective and high-performance solution?

Use Amazon Aurora Global Database to enable fast local reads with low latency in each region

A Hollywood studio is planning a series of promotional events leading up to the launch of the trailer of its next sci-fi thriller. The executives at the studio want to create a static website with lots of animations in line with the theme of the movie. The studio has hired you as a solutions architect to build a scalable serverless solution. Which of the following represents the MOST cost-optimal and high-performance solution?

Build the website as a static website hosted on Amazon S3. Create an Amazon CloudFront distribution with Amazon S3 as the origin. Use Amazon Route 53 to create an alias record that points to your Amazon CloudFront distribution

An e-commerce company uses Microsoft Active Directory to provide users and groups with access to resources on the on-premises infrastructure. The company has extended its IT infrastructure to AWS in the form of a hybrid cloud. The engineering team at the company wants to run directory-aware workloads on AWS for a SQL Server-based application. The team also wants to configure a trust relationship to enable single sign-on (SSO) for its users to access resources in either domain. As a solutions architect, which of the following AWS services would you recommend for this use-case?

AWS Directory Service for Microsoft Active Directory (AWS Managed Microsoft AD)

A global pharmaceutical company wants to move most of the on-premises data into Amazon S3, Amazon Elastic File System (Amazon EFS), and Amazon FSx for Windows File Server easily, quickly, and cost-effectively. As a solutions architect, which of the following solutions would you recommend as the BEST fit to automate and accelerate online data transfers to these AWS storage services?

Use AWS DataSync to automate and accelerate online data transfers to the given AWS storage services

A video conferencing application is hosted on a fleet of EC2 instances which are part of an Auto Scaling group. The Auto Scaling group uses a Launch Template (LT1) with "dedicated" instance tenancy but the VPC (V1) used by the Launch Template LT1 has the instance tenancy set to default. Later the DevOps team creates a new Launch Template (LT2) with shared (default) instance tenancy but the VPC (V2) used by the Launch Template LT2 has the instance tenancy set to dedicated. Which of the following is correct regarding the instances launched via Launch Template LT1 and Launch Template LT2?

The instances launched by both Launch Template LT1 and Launch Template LT2 will have dedicated instance tenancy

A media company wants a low-latency way to distribute live sports results which are delivered via a proprietary application using UDP protocol. As a solutions architect, which of the following solutions would you recommend such that it offers the BEST performance for this use case?

Use AWS Global Accelerator to provide a low latency way to distribute live sports results

A media startup is looking at hosting their web application on AWS Cloud. The application will be accessed by users from different geographic regions of the world to upload and download video files that can reach a maximum size of 10 gigabytes. The startup wants the solution to be cost-effective and scalable with the lowest possible latency for a great user experience. As a Solutions Architect, which of the following will you suggest as an optimal solution to meet the given requirements?

Use Amazon S3 for hosting the web application and use Amazon S3 Transfer Acceleration (Amazon S3TA) to reduce the latency that geographically dispersed users might face

The database backend for a retail company's website is hosted on Amazon RDS for MySQL having a primary instance and three read replicas to support read scalability. The company has mandated that the read replicas should lag no more than 1 second behind the primary instance to provide the best possible user experience. The read replicas are falling further behind during periods of peak traffic spikes, resulting in a bad user experience as the searches produce inconsistent results. You have been hired as an AWS Certified Solutions Architect - Associate to reduce the replication lag as much as possible with minimal changes to the application code or the effort required to manage the underlying resources. Which of the following will you recommend?

Set up database migration from Amazon RDS MySQL to Amazon Aurora MySQL. Swap out the MySQL read replicas with Aurora Replicas. Configure Aurora Auto Scaling

A leading online gaming company is migrating its flagship application to AWS Cloud for delivering its online games to users across the world. The company would like to use a Network Load Balancer to handle millions of requests per second. The engineering team has provisioned multiple instances in a public subnet and specified these instance IDs as the targets for the NLB. As a solutions architect, can you help the engineering team understand the correct routing mechanism for these target instances?

Traffic is routed to instances using the primary private IP address specified in the primary network interface for the instance

An IT consultant is helping a small business revamp their technology infrastructure on the AWS Cloud. The business has two AWS accounts and all resources are provisioned in the us-west-2 region. The IT consultant is trying to launch an Amazon EC2 instance in each of the two AWS accounts such that the instances are in the same Availability Zone (AZ) of the us-west-2 region. Even after selecting the same default subnet (us-west-2a) while launching the instances in each of the AWS accounts, the IT consultant notices that the Availability Zones (AZs) are still different. As a solutions architect, which of the following would you suggest resolving this issue?

Use Availability Zone (AZ) ID to uniquely identify the Availability Zones across the two AWS Accounts

The DevOps team at an IT company is provisioning a two-tier application in a VPC with a public subnet and a private subnet. The team wants to use either a Network Address Translation (NAT) instance or a Network Address Translation (NAT) gateway in the public subnet to enable instances in the private subnet to initiate outbound IPv4 traffic to the internet but needs some technical assistance in terms of the configuration options available for the Network Address Translation (NAT) instance and the Network Address Translation (NAT) gateway. As a solutions architect, which of the following options would you identify as CORRECT? (Select three)

NAT instance supports port forwarding, NAT instance can be used as a bastion server, Security Groups can be associated with a NAT instance

A small business has been running its IT systems on the on-premises infrastructure but the business now plans to migrate to AWS Cloud for operational efficiencies. As a Solutions Architect, can you suggest a cost-effective serverless solution for its flagship application that has both static and dynamic content?

Host the static content on Amazon S3 and use AWS Lambda with Amazon DynamoDB for the serverless web application that handles dynamic content. Amazon CloudFront will sit in front of AWS Lambda for distribution across diverse regions

A gaming company uses Application Load Balancers in front of Amazon EC2 instances for different services and microservices. The architecture has now become complex with too many Application Load Balancers in multiple AWS Regions. Security updates, firewall configurations, and traffic routing logic have become complex with too many IP addresses and configurations. The company is looking at an easy and effective way to bring down the number of IP addresses allowed by the firewall and easily manage the entire network infrastructure. Which of these options represents an appropriate solution for this requirement?

Launch AWS Global Accelerator and create endpoints for all the Regions. Register the Application Load Balancers of each Region to the corresponding endpoints

The application maintenance team at a company has noticed that the production application is very slow when the business reports are run on the Amazon RDS database. These reports fetch a large amount of data and have complex queries with multiple joins, spanning across multiple business-critical core tables. CPU, memory, and storage metrics are around 50% of the total capacity. Can you recommend an improved and cost-effective way of generating the business reports while keeping the production application unaffected?

Create a read replica and connect the report generation tool/application to it

A healthcare company has deployed its web application on Amazon Elastic Container Service (Amazon ECS) container instances running behind an Application Load Balancer. The website slows down when the traffic spikes and the website availability is also reduced. The development team has configured Amazon CloudWatch alarms to receive notifications whenever there is an availability constraint so the team can scale out resources. The company wants an automated solution to respond to such events. Which of the following addresses the given use case?

Configure AWS Auto Scaling to scale out the Amazon ECS cluster when the ECS service's CPU utilization rises above a threshold

A leading social media analytics company is contemplating moving its dockerized application stack into AWS Cloud. The company is not sure about the pricing for using Amazon Elastic Container Service (Amazon ECS) with the EC2 launch type compared to the Amazon Elastic Container Service (Amazon ECS) with the Fargate launch type. Which of the following is correct regarding the pricing for these two services?

Amazon ECS with EC2 launch type is charged based on EC2 instances and EBS volumes used. Amazon ECS with Fargate launch type is charged based on vCPU and memory resources that the containerized application requests

A video analytics organization has been acquired by a leading media company. The analytics organization has 10 independent applications with an on-premises data footprint of about 70 Terabytes for each application. The CTO of the media company has set a timeline of two weeks to carry out the data migration from on-premises data center to AWS Cloud and establish connectivity. Which of the following are the MOST cost-effective options for completing the data transfer and establishing connectivity? (Select two)

Order 10 AWS Snowball Edge Storage Optimized devices to complete the one-time data transfer, Setup AWS Site-to-Site VPN to establish on-going connectivity between the on-premises data center and AWS Cloud

As part of a pilot program, a biotechnology company wants to integrate data files from its on-premises analytical application with AWS Cloud via an NFS interface. Which of the following AWS service is the MOST efficient solution for the given use-case?

AWS Storage Gateway - File Gateway

An audit department generates and accesses the audit reports only twice in a financial year. The department uses AWS Step Functions to orchestrate the report creating process that has failover and retry scenarios built into the solution. The underlying data to create these audit reports is stored on Amazon S3, runs into hundreds of Terabytes and should be available with millisecond latency. As an AWS Certified Solutions Architect – Associate, which is the MOST cost-effective storage class that you would recommend to be used for this use-case?

Amazon S3 Standard-Infrequent Access (S3 Standard-IA)

A leading video streaming service delivers billions of hours of content from Amazon Simple Storage Service (Amazon S3) to customers around the world. Amazon S3 also serves as the data lake for its big data analytics solution. The data lake has a staging zone where intermediary query results are kept only for 24 hours. These results are also heavily referenced by other parts of the analytics pipeline. Which of the following is the MOST cost-effective strategy for storing this intermediary query data?

Store the intermediary query results in Amazon S3 Standard storage class

The IT department at a consulting firm is conducting a training workshop for new developers. As part of an evaluation exercise on Amazon S3, the new developers were asked to identify the invalid storage class lifecycle transitions for objects stored on Amazon S3. Can you spot the INVALID lifecycle transitions from the options below? (Select two) ?

Amazon S3 Intelligent-Tiering => Amazon S3 Standard, Amazon S3 One Zone-IA => Amazon S3 Standard-IA

A financial services company recently launched an initiative to improve the security of its AWS resources and it had enabled AWS Shield Advanced across multiple AWS accounts owned by the company. Upon analysis, the company has found that the costs incurred are much higher than expected. Which of the following would you attribute as the underlying reason for the unexpectedly high costs for AWS Shield Advanced service?

Consolidated billing has not been enabled. All the AWS accounts should fall under a single consolidated billing for the monthly fee to be charged only once

A media agency stores its re-creatable assets on Amazon Simple Storage Service (Amazon S3) buckets. The assets are accessed by a large number of users for the first few days and the frequency of access falls down drastically after a week. Although the assets would be accessed occasionally after the first week, but they must continue to be immediately accessible when required. The cost of maintaining all the assets on Amazon S3 storage is turning out to be very expensive and the agency is looking at reducing costs as much as possible. As an AWS Certified Solutions Architect – Associate, can you suggest a way to lower the storage costs while fulfilling the business requirements?

Configure a lifecycle policy to transition the objects to Amazon S3 One Zone-Infrequent Access (S3 One Zone-IA) after 30 days

A company runs a data processing workflow that takes about 60 minutes to complete. The workflow can withstand disruptions and it can be started and stopped multiple times. Which is the most cost-effective solution to build a solution for the workflow?

Use Amazon EC2 spot instances to run the workflow processes

A geological research agency maintains the seismological data for the last 100 years. The data has a velocity of 1GB per minute. You would like to store the data with only the most relevant attributes to build a predictive model for earthquakes. What AWS services would you use to build the most cost-effective solution with the LEAST amount of infrastructure maintenance?

Ingest the data in Amazon Kinesis Data Firehose and use an intermediary AWS Lambda function to filter and transform the incoming stream before the output is dumped on Amazon S3

A retail company has developed a REST API which is deployed in an Auto Scaling group behind an Application Load Balancer. The REST API stores the user data in Amazon DynamoDB and any static content, such as images, are served via Amazon Simple Storage Service (Amazon S3). On analyzing the usage trends, it is found that 90% of the read requests are for commonly accessed data across all users. As a Solutions Architect, which of the following would you suggest as the MOST efficient solution to improve the application performance?

Enable Amazon DynamoDB Accelerator (DAX) for Amazon DynamoDB and Amazon CloudFront for Amazon S3

A news network uses Amazon Simple Storage Service (Amazon S3) to aggregate the raw video footage from its reporting teams across the US. The news network has recently expanded into new geographies in Europe and Asia. The technical teams at the overseas branch offices have reported huge delays in uploading large video files to the destination Amazon S3 bucket. Which of the following are the MOST cost-effective options to improve the file upload speed into Amazon S3 (Select two)

Use multipart uploads for faster file uploads into the destination Amazon S3 bucket, Use Amazon S3 Transfer Acceleration (Amazon S3TA) to enable faster file uploads into the destination S3 bucket

A technology blogger wants to write a review on the comparative pricing for various storage types available on AWS Cloud. The blogger has created a test file of size 1 gigabytes with some random data. Next he copies this test file into AWS S3 Standard storage class, provisions an Amazon EBS volume (General Purpose SSD (gp2)) with 100 gigabytes of provisioned storage and copies the test file into the Amazon EBS volume, and lastly copies the test file into an Amazon EFS Standard Storage filesystem. At the end of the month, he analyses the bill for costs incurred on the respective storage types for the test file. What is the correct order of the storage charges incurred for the test file on these three storage types?

Cost of test file storage on Amazon S3 Standard < Cost of test file storage on Amazon EFS < Cost of test file storage on Amazon EBS

A company has a web application that runs 24*7 in the production environment. The development team at the company runs a clone of the same application in the dev environment for up to 8 hours every day. The company wants to build the MOST cost-optimal solution by deploying these applications using the best-fit pricing options for Amazon Elastic Compute Cloud (Amazon EC2) instances. What would you recommend?

Use Amazon EC2 reserved instance (RI) for the production application and on-demand instances for the dev application

A company is looking at storing their less frequently accessed files on AWS that can be concurrently accessed by hundreds of Amazon EC2 instances. The company needs the most cost-effective file storage service that provides immediate access to data whenever needed. Which of the following options represents the best solution for the given requirements?

Amazon Elastic File System (EFS) Standard–IA storage class

Amazon EC2 Auto Scaling needs to terminate an instance from Availability Zone (AZ) us-east-1a as it has the most number of instances amongst the Availability Zone (AZs) being used currently. There are 4 instances in the Availability Zone (AZ) us-east-1a like so: Instance A has the oldest launch template, Instance B has the oldest launch configuration, Instance C has the newest launch configuration and Instance D is closest to the next billing hour. Which of the following instances would be terminated per the default termination policy?

Instance B

You would like to use AWS Snowball to move on-premises backups into a long term archival tier on AWS. Which solution provides the MOST cost savings?

Create an AWS Snowball job and target an Amazon S3 bucket. Create a lifecycle policy to transition this data to Amazon S3 Glacier Deep Archive on the same day

The engineering manager for a content management application wants to set up Amazon RDS read replicas to provide enhanced performance and read scalability. The manager wants to understand the data transfer charges while setting up Amazon RDS read replicas. Which of the following would you identify as correct regarding the data transfer charges for Amazon RDS read replicas?

There are data transfer charges for replicating data across AWS Regions

An IT company wants to optimize the costs incurred on its fleet of 100 Amazon EC2 instances for the next year. Based on historical analyses, the engineering team observed that 70 of these instances handle the compute services of its flagship application and need to be always available. The other 30 instances are used to handle batch jobs that can afford a delay in processing. As a solutions architect, which of the following would you recommend as the MOST cost-optimal solution?

Purchase 70 reserved instances (RIs) and 30 spot instances

You would like to mount a network file system on Linux instances, where files will be stored and accessed frequently at first, and then infrequently. What solution is the MOST cost-effective?

Amazon EFS Infrequent Access

Your company has a monthly big data workload, running for about 2 hours, which can be efficiently distributed across multiple servers of various sizes, with a variable number of CPUs. The solution for the workload should be able to withstand server failures. Which is the MOST cost-optimal solution for this workload?

Run the workload on a Spot Fleet

The engineering team at an e-commerce company is working on cost optimizations for Amazon Elastic Compute Cloud (Amazon EC2) instances. The team wants to manage the workload using a mix of on-demand and spot instances across multiple instance types. They would like to create an Auto Scaling group with a mix of these instances. Which of the following options would allow the engineering team to provision the instances for this use-case?

You can only use a launch template to provision capacity across multiple instance types using both On-Demand Instances and Spot Instances to achieve the desired scale, performance, and cost

You have multiple AWS accounts within a single AWS Region managed by AWS Organizations and you would like to ensure all Amazon EC2 instances in all these accounts can communicate privately. Which of the following solutions provides the capability at the CHEAPEST cost?

Create a virtual private cloud (VPC) in an account and share one or more of its subnets with the other accounts using Resource Access Manager

An application is currently hosted on four Amazon EC2 instances (behind Application Load Balancer) deployed in a single Availability Zone (AZ). To maintain an acceptable level of end-user experience, the application needs at least 4 instances to be always available. As a solutions architect, which of the following would you recommend so that the application achieves high availability with MINIMUM cost?

Deploy the instances in three Availability Zones (AZs). Launch two instances in each Availability Zone (AZ)

An application runs big data workloads on Amazon Elastic Compute Cloud (Amazon EC2) instances. The application runs 24x7 all round the year and needs at least 20 instances to maintain a minimum acceptable performance threshold and the application needs 300 instances to handle spikes in the workload. Based on historical workloads processed by the application, it needs 80 instances 80% of the time. As a solutions architect, which of the following would you recommend as the MOST cost-optimal solution so that it can meet the workload demand in a steady state?

Purchase 80 reserved instances (RIs). Provision additional on-demand and spot instances per the workload demand (Use Auto Scaling Group with launch template to provision the mix of on-demand and spot instances)

A financial services company is migrating their messaging queues from self-managed message-oriented middleware systems to Amazon Simple Queue Service (Amazon SQS). The development team at the company wants to minimize the costs of using Amazon SQS. As a solutions architect, which of the following options would you recommend for the given use-case?

Use SQS long polling to retrieve messages from your Amazon SQS queues

A financial services company is looking to move its on-premises IT infrastructure to AWS Cloud. The company has multiple long-term server bound licenses across the application stack and the CTO wants to continue to utilize those licenses while moving to AWS. As a solutions architect, which of the following would you recommend as the MOST cost-effective solution?

Use Amazon EC2 dedicated hosts

An e-commerce company has deployed its application on several Amazon EC2 instances that are configured in a private subnet using IPv4. These Amazon EC2 instances read and write a huge volume of data to and from Amazon S3 in the same AWS region. The company has set up subnet routing to direct all the internet-bound traffic through a Network Address Translation gateway (NAT gateway). The company wants to build the most cost-optimal solution without impacting the application's ability to communicate with Amazon S3 or the internet. As an AWS Certified Solutions Architect Associate, which of the following would you recommend?

Set up a VPC gateway endpoint for Amazon S3. Attach an endpoint policy to the endpoint. Update the route table to direct the S3-bound traffic to the VPC endpoint

An IT company is looking to move its on-premises infrastructure to AWS Cloud. The company has a portfolio of applications with a few of them using server bound licenses that are valid for the next year. To utilize the licenses, the CTO wants to use dedicated hosts for a one year term and then migrate the given instances to default tenancy thereafter. As a solutions architect, which of the following options would you identify as CORRECT for changing the tenancy of an instance after you have launched it? (Select two)

You can change the tenancy of an instance from dedicated to host, You can change the tenancy of an instance from host to dedicated

An IT training company hosted its website on Amazon S3 a couple of years ago. Due to COVID-19 related travel restrictions, the training website has suddenly gained traction. With an almost 300% increase in the requests served per day, the company's AWS costs have sky-rocketed for just the Amazon S3 outbound data costs. As a Solutions Architect, can you suggest an alternate method to reduce costs while keeping the latency low?

Configure Amazon CloudFront to distribute the data hosted on Amazon S3 cost-effectively

A social media startup uses AWS Cloud to manage its IT infrastructure. The engineering team at the startup wants to perform weekly database rollovers for a MySQL database server using a serverless cron job that typically takes about 5 minutes to execute the database rollover script written in Python. The database rollover will archive the past week’s data from the production database to keep the database small while still keeping its data accessible. As a solutions architect, which of the following would you recommend as the MOST cost-efficient and reliable solution?

Schedule a weekly Amazon EventBridge event cron expression to invoke an AWS Lambda function that runs the database rollover job

A company has a license-based, expensive, legacy commercial database solution deployed at its on-premises data center. The company wants to migrate this database to a more efficient, open-source, and cost-effective option on AWS Cloud. The CTO at the company wants a solution that can handle complex database configurations such as secondary indexes, foreign keys, and stored procedures. As a solutions architect, which of the following AWS services should be combined to handle this use-case? (Select two)

AWS Database Migration Service (AWS DMS), AWS Schema Conversion Tool (AWS SCT)

A startup has created a new web application for users to complete a risk assessment survey for COVID-19 symptoms via a self-administered questionnaire. The startup has purchased the domain covid19survey.com using Amazon Route 53. The web development team would like to create Amazon Route 53 record so that all traffic for covid19survey.com is routed to www.covid19survey.com. As a solutions architect, which of the following is the MOST cost-effective solution that you would recommend to the web development team?

Create an alias record for covid19survey.com that routes traffic to www.covid19survey.com

The development team at a retail company wants to optimize the cost of Amazon EC2 instances. The team wants to move certain nightly batch jobs to spot instances. The team has hired you as a solutions architect to provide the initial guidance. Which of the following would you identify as CORRECT regarding the capabilities of spot instances? (Select three)

When you cancel an active spot request, it does not terminate the associated instance, If a spot request is persistent, then it is opened again after your Spot Instance is interrupted, Spot Fleets can maintain target capacity by launching replacement instances after Spot Instances in the fleet are terminated

Your application is hosted by a provider on yourapp.provider.com. You would like to have your users access your application using www.your-domain.com, which you own and manage under Amazon Route 53. Which Amazon Route 53 record should you create?

Create a CNAME record

A startup's cloud infrastructure consists of a few Amazon EC2 instances, Amazon RDS instances and Amazon S3 storage. A year into their business operations, the startup is incurring costs that seem too high for their business requirements. Which of the following options represents a valid cost-optimization solution?

Use AWS Cost Explorer Resource Optimization to get a report of Amazon EC2 instances that are either idle or have low utilization and use AWS Compute Optimizer to look at instance type recommendations

A company has noticed that its Amazon EBS Elastic Volume (io1) accounts for 90% of the cost and the remaining 10% cost can be attributed to the Amazon EC2 instance. The Amazon CloudWatch metrics report that both the Amazon EC2 instance and the Amazon EBS volume are under-utilized. The Amazon CloudWatch metrics also show that the Amazon EBS volume has occasional I/O bursts. The entire infrastructure is managed by AWS CloudFormation. As a Solutions Architect, what do you propose to reduce the costs?

Convert the Amazon EC2 instance EBS volume to gp2

A mobile gaming company is experiencing heavy read traffic to its Amazon Relational Database Service (Amazon RDS) database that retrieves player’s scores and stats. The company is using an Amazon RDS database instance type that is not cost-effective for their budget. The company would like to implement a strategy to deal with the high volume of read traffic, reduce latency, and also downsize the instance size to cut costs. Which of the following solutions do you recommend?

Setup Amazon ElastiCache in front of Amazon RDS

As an e-sport tournament hosting company, you have servers that need to scale and be highly available. Therefore you have deployed an Elastic Load Balancing (ELB) with an Auto Scaling group (ASG) across 3 Availability Zones (AZs). When e-sport tournaments are running, the servers need to scale quickly. And when tournaments are done, the servers can be idle. As a general rule, you would like to be highly available, have the capacity to scale and optimize your costs. What do you recommend? (Select two)

Use Reserved Instances (RIs) for the minimum capacity, Set the minimum capacity to 2

You have an Amazon S3 bucket that contains files in two different folders - s3://my-bucket/images and s3://my-bucket/thumbnails. When an image is first uploaded and new, it is viewed several times. But after 45 days, analytics prove that image files are on average rarely requested, but the thumbnails still are. After 180 days, you would like to archive the image files and the thumbnails. Overall you would like the solution to remain highly available to prevent disasters happening against a whole Availability Zone (AZ). How can you implement an efficient cost strategy for your Amazon S3 bucket? (Select two)

Create a Lifecycle Policy to transition objects to Amazon S3 Standard IA using a prefix after 45 days, Create a Lifecycle Policy to transition all objects to Amazon S3 Glacier after 180 days

A photo hosting service publishes a collection of beautiful mountain images, every month, that aggregate over 50 gigabytes in size and downloaded all around the world. The content is currently hosted on Amazon EFS and distributed by Elastic Load Balancing (ELB) and Amazon EC2 instances. The website is experiencing high load each month and very high network costs. As a Solutions Architect, what can you recommend that won't force an application refactor and reduce network costs and Amazon EC2 load drastically?

Create an Amazon CloudFront distribution

You have developed a new REST API leveraging the Amazon API Gateway, AWS Lambda and Amazon Aurora database services. Most of the workload on the website is read-heavy. The data rarely changes and it is acceptable to serve users outdated data for about 24 hours. Recently, the website has been experiencing high load and the costs incurred on the Aurora database have been very high. How can you easily reduce the costs while improving performance, with minimal changes?

Enable Amazon API Gateway Caching

You are working as a Solutions Architect for a photo processing company that has a proprietary algorithm to compress an image without any loss in quality. Because of the efficiency of the algorithm, your clients are willing to wait for a response that carries their compressed images back. You also want to process these jobs asynchronously and scale quickly, to cater to the high demand. Additionally, you also want the job to be retried in case of failures. Which combination of choices do you recommend to minimize cost and comply with the requirements? (Select two)

Amazon Simple Queue Service (Amazon SQS), Amazon EC2 Spot Instances

The data engineering team at an e-commerce company has set up a workflow to ingest the clickstream data into the raw zone of the Amazon S3 data lake. The team wants to run some SQL based data sanity checks on the raw zone of the data lake. What AWS services would you recommend for this use-case such that the solution is cost-effective and easy to maintain?

Use Amazon Athena to run SQL based analytics against Amazon S3 data

Computer vision researchers at a university are trying to optimize the I/O bound processes for a proprietary algorithm running on Amazon EC2 instances. The ideal storage would facilitate high-performance IOPS when doing file processing in a temporary storage space before uploading the results back into Amazon S3. As a solutions architect, which of the following AWS storage options would you recommend as the MOST performant as well as cost-optimal?

Use Amazon EC2 instances with Instance Store as the storage option

A medical devices company uses Amazon S3 buckets to store critical data. Hundreds of buckets are used to keep the data segregated and well organized. Recently, the development team noticed that the lifecycle policies on the Amazon S3 buckets have not been applied optimally, resulting in higher costs. As a Solutions Architect, can you recommend a solution to reduce storage costs on Amazon S3 while keeping the IT team's involvement to a minimum?

Use Amazon S3 Intelligent-Tiering storage class to optimize the Amazon S3 storage costs

A multi-national company is looking at optimizing their AWS resources across various countries and regions. They want to understand the best practices on cost optimization, performance, and security for their system architecture spanning across multiple business units. Which AWS service is the best fit for their requirements?

AWS Trusted Advisor

A development team has deployed a microservice to the Amazon Elastic Container Service (Amazon ECS). The application layer is in a Docker container that provides both static and dynamic content through an Application Load Balancer. With increasing load, the Amazon ECS cluster is experiencing higher network usage. The development team has looked into the network usage and found that 90% of it is due to distributing static content of the application. As a Solutions Architect, what do you recommend to improve the application's network usage and decrease costs?

Distribute the static content through Amazon S3

A retail company maintains an AWS Direct Connect connection to AWS and has recently migrated its data warehouse to AWS. The data analysts at the company query the data warehouse using a visualization tool. The average size of a query returned by the data warehouse is 60 megabytes and the query responses returned by the data warehouse are not cached in the visualization tool. Each webpage returned by the visualization tool is approximately 600 kilobytes. Which of the following options offers the LOWEST data transfer egress cost for the company?

Deploy the visualization tool in the same AWS region as the data warehouse. Access the visualization tool over a Direct Connect connection at a location in the same region

100

The content division at a digital media agency has an application that generates a large number of files on Amazon S3, each approximately 10 megabytes in size. The agency mandates that the files be stored for 5 years before they can be deleted. The files are frequently accessed in the first 30 days of the object creation but are rarely accessed after the first 30 days. The files contain critical business data that is not easy to reproduce, therefore, immediate accessibility is always required. Which solution is the MOST cost-effective for the given use case?

Set up an Amazon S3 bucket lifecycle policy to move files from Amazon S3 Standard to Amazon S3 Standard-IA 30 days after object creation. Delete the files 5 years after object creation

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critical flaw · 98問 · 2年前

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