Extinction Agenda Book 3 Chapter 1

50問 • 1年前

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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

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critical flaw · 98問 · 2年前

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