k3ch - 2910116 - D4 - A | 暗記メーカー

k3ch - 2910116 - D4 - A

100問 • 1年前

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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

Question 6 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

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

A financial services company has to retain the activity logs for each of their customers to meet compliance guidelines. Depending on the business line, the company wants to retain the logs for 5-10 years in highly available and durable storage on AWS. The overall data size is expected to be in Petabytes. In case of an audit, the data would need to be accessible within a timeframe of up to 48 hours. Which AWS storage option is the MOST cost-effective for the given compliance requirements?

Amazon S3 Glacier Deep Archive

A media company wants to get out of the business of owning and maintaining its own IT infrastructure. As part of this digital transformation, the media company wants to archive about 5 petabytes of data in its on-premises data center to durable long term storage. As a solutions architect, what is your recommendation to migrate this data in the MOST cost-optimal way?

Transfer the on-premises data into multiple AWS Snowball Edge Storage Optimized devices. Copy the AWS Snowball Edge data into Amazon S3 and create a lifecycle policy to transition the data into Amazon S3 Glacier

A medium-sized business has a taxi dispatch application deployed on an Amazon EC2 instance. Because of an unknown bug, the application causes the instance to freeze regularly. Then, the instance has to be manually restarted via the AWS management console. Which of the following is the MOST cost-optimal and resource-efficient way to implement an automated solution until a permanent fix is delivered by the development team?

Setup an Amazon CloudWatch alarm to monitor the health status of the instance. In case of an Instance Health Check failure, an EC2 Reboot CloudWatch Alarm Action can be used to reboot the instance

A software engineering intern at a company is documenting the features offered by Amazon EC2 Spot instances and Spot fleets. Can you help the intern by selecting the correct options that identify the key characteristics of these two types of Spot entities? (Select two)

A Spot fleet can consist of a set of Spot Instances and optionally On-Demand Instances that are launched to meet your target capacity, Spot instances are spare Amazon EC2 capacity that can save you up 90% off of On-Demand prices. Spot instances can be interrupted by Amazon EC2 for capacity requirements with a 2-minute notification

You are deploying a critical monolith application that must be deployed on a single web server, as it hasn't been created to work in distributed mode. Still, you want to make sure your setup can automatically recover from the failure of an Availability Zone (AZ). Which of the following options should be combined to form the MOST cost-efficient solution? (Select three)

Create an auto-scaling group that spans across 2 Availability Zones, which min=1, max=1, desired=1, Create an elastic IP address (EIP) and use the Amazon EC2 user-data script to attach it, Assign an Amazon EC2 Instance Role to perform the necessary API calls

The development team at a company manages a Python based nightly process with a runtime of 30 minutes. The process can withstand any interruptions in its execution and start over again. The process currently runs on the on-premises infrastructure and it needs to be migrated to AWS. Which of the following options do you recommend as the MOST cost-effective solution?

Run on a Spot Instance with a persistent request type

Your e-commerce application is using an Amazon RDS PostgreSQL database and an analytics workload also runs on the same database. When the analytics workload is run, your e-commerce application slows down which further affects your sales. Which of the following is the MOST cost-optimal solution to fix this issue?

Create a Read Replica in the same Region as the Master database and point the analytics workload there

The data engineering team at a company wants to analyze Amazon S3 storage access patterns to decide when to transition the right data to the right storage class. Which of the following represents a correct option regarding the capabilities of Amazon S3 Analytics storage class analysis?

Storage class analysis only provides recommendations for Standard to Standard IA classes

The engineering team at a social media company has noticed that while some of the images stored in Amazon S3 are frequently accessed, others sit idle for a considerable span of time. As a solutions architect, what is your recommendation to build the MOST cost-effective solution?

Store the images using the Amazon S3 Intelligent-Tiering storage class

A big data analytics company is looking to archive the on-premises data into a POSIX compliant file storage system on AWS Cloud. The archived data would be accessed for just about a week in a year. As a solutions architect, which of the following AWS services would you recommend as the MOST cost-optimal solution?

Amazon EFS Infrequent Access

Your company has created a data warehouse using Amazon Redshift that is used to analyze data from Amazon S3. From the usage pattern, you have detected that after 30 days, the data is rarely queried in Amazon Redshift and it's not "hot data" anymore. You would like to preserve the SQL querying capability on your data and get the queries started immediately. Also, you want to adopt a pricing model that allows you to save the maximum amount of cost on Amazon Redshift. What do you recommend? (Select two)

Move the data to Amazon S3 Standard IA after 30 days, Analyze the cold data with Amazon Athena

You have deployed a database technology that has a synchronous replication mode to survive disasters in data centers. The database is therefore deployed on two Amazon EC2 instances in two Availability Zones (AZs). The database must be publicly available so you have deployed the Amazon EC2 instances in public subnets. The replication protocol currently uses the Amazon EC2 public IP addresses. What can you do to decrease the replication cost?

Use the Amazon EC2 instances private IP for the replication

A Hollywood production studio is looking at transferring their existing digital media assets of around 20 petabytes to AWS Cloud in the shortest possible timeframe. Which of the following is an optimal solution for this requirement, given that the studio's data centers are located at a remote location?

AWS Snowmobile

You are reviewing Change Control requests and note a change designed to reduce wasted CPU cycles by increasing the value of the VisibilityTimeout attribute. What does this mean?

When a consumer instance retrieves a message, that message will be hidden from other consumer instances for a fixed period of time.

How many hours of EC2 compute are provided in the free tier?

750

Which one of the following scenarios would result in a higher percentage of savings when using S3 Standard Infrequent Access storage instead of S3 Standard storage?

1 TB monthly with 10% of content accessed per month

What AWS tool can be used to estimate the cost of storage for an AWS solution?

AWS Pricing Calculator

Your application uploads several thousands of files every day. The file sizes range from 500MB to 2GB. Each file is then processed to extract metadata, and the metadata processing takes a few seconds. There is no fixed uploading frequency; sometimes all the files are uploaded at a particular hour, sometimes only a few files are uploaded at a particular hour, and sometimes no uploads occur for a few hours. What is the most cost-effective way of handling this issue?

Store the files in Amazon S3 and then use an S3 event notification to invoke a Lambda function for extracting the metadata.

You have a fleet of EC2 instances hosting your application, running in an on-demand model that is billed on an hourly basis. For running your application, you have enabled Auto Scaling for scaling up and down, as per the workload, and while reviewing the Auto Scaling events you notice that the application is scaling up and down multiple times within the same hour. What would you do to optimize the cost while preserving elasticity at the same time? (Choose two.)

Change the CloudWatch alarm period that triggers the Auto Scaling scale-down policy., Change the Auto Scaling group’s cool-down time.

What important action may help to reduce costs of AWS operations over a long period of time?

Keep up to date with new AWS service releases

You are creating a data lake, and one of the criteria you are looking for is faster performance. You want the ability to transform the data directly during the ingestion process to save time and cost. Which AWS service should you choose for this?

Use Kinesis Analytics for transforming the data.

When storing data in EC2 instances, in addition to storage space requirements, what cost factor must be considered?

Data transfer costs (from AWS to your local network)

You monitor your usage in AWS to increase or decrease resources based on current business requirements. This careful monitoring and response is taken to reduce costs. What model is being implemented according to the AWS Cost Optimization Pillar?

Consumption Model

You are in the process of designing a document archive solution for your company. The solution must be cost-effective; therefore, you have selected Glacier. The business wants to have the capability to get a document within 15 minutes of requesting it. Which feature of Amazon Glacier will you choose?

Expedited retrieval

You want to implement a multi-account AWS cloud deployment that more easily complies with business policies during implementation. You wish to implement guardrails that prevent users from taking specific actions that might breech security policies. What AWS service can provide this and works with organizations as well?

AWS Control Tower

What is the maximum VisibilityTimeout value of an SQS message in a FIFO queue?

12 hours

Following advice from your consultant, you have configured your VPC to use Dedicated hosting tenancy. A subsequent change to your application has rendered the performance gains from Dedicated tenancy superfluous, and you would now like to recoup some of these greater costs. How do you revert to Default hosting tenancy? (Choose two.)

Change tenancy using CLI/SDK., Create AMIs of all your instances. Create a new VPC with Default as the hosting tenancy attribute and then use them to create new instances using Default tenancy.

What solution is the least expensive, within AWS, for long-term data storage and archives?

Glacier

You want to implement an Oracle database in AWS. What managed service in AWS allows you to do this in the least expensive way?

RDS

How much data can be downloaded from an S3 bucket to your local network with no transfer charges?

Up to 1 GB/Month

You work for a genomics company that is developing a cure for motor neuron disease by using advanced gene therapies. As a part of its research, the company takes extremely large data sets (usually in the terabytes) and analyzes them using Elastic Map Reduce (EMR). In order to keep costs low, the company runs the analysis for only a few hours in the early hours of the morning, using spot instances for the task nodes. The core nodes are on-demand instances. Lately, however, the EMR jobs have been failing. This is due to spot instances being unexpectedly terminated. Which of the following remedies would both keep costs manageable and mitigate the issues caused by terminated spot instances? (Choose two.)

Increase the bid price for the task nodes so that you have a greater threshold before the task nodes are terminated., Change the task nodes to on-demand instances.

Your AWS environment contains several on-demand EC2 instances dedicated to a project that has just been cancelled. Your supervisor does not want to incur charges for these on-demand instances, but also does not want to lose the data just yet because there is a chance the project may be revived in the next few days. What should you do to minimize charges for these instances in the meantime?

Stop the instances.

You have a web-based application that requires access to a flat-file database (text in CSV format). What is the best storage solution for this data without conversion?

In addition to database instance class and redundancy options (such as Multi-AZ configurations), what has the most significant impact on the direct cost for RDS databases?

The database engine in use

Scenario: You are using large-scale databases and intensive processing EC2 instances. If you know the amount of resources required for one year or more for an AWS EC2 instance or RDS database, what can be utilized to reduce costs by 40% or more?

Reserved pricing

Your company has hired a young and enthusiastic accountant. After reviewing the AWS documentation and usage graphs, he announces that you are wasting vast amounts of the company’s money running servers for a full hour instead of spinning them up only when they are needed and down again as soon as they are idle for 1 minute. He cites the AWS claim that you only pay for what you use, and that as a senior engineer, you should be more conscious of wasting company money. How do you respond?

You thank him for his concern and then implement EC2’s pay-per-minute billing to get the maximum benefit for the company.

For which of the following does the AWS Trusted Adviser service offer advice? (Choose two.)

Whether MFA is configured on the root account, Advice on security groups and what ports have unrestricted access

What EC2 instance type can be used to provide up to a 90% discount off on-demand instance prices?

Spot instance

You want to perform business analytics against a large data set (several terabytes). What AWS-managed service provides such functionality?

Redshift

You have been given control of an existing AWS environment (account). You want to ensure costs are being managed well. What tool should you run?

Trusted Advisor

You must monitor the costs associated with your AWS account. What can you use to generate an alert should the outbound traffic exceed 250 GB for an on-demand EC2 instance?

AWS Budget alerts

Although your application customarily runs at 30% usage, you have identified a recurring usage spike (greater than 90% usage) between 8 p.m. and midnight daily. What is the most cost-effective way to scale your application to meet this increased need?

Use proactive cyclic scaling to boost your capacity at a fixed interval.

You’ve been tasked with implementing a globally accessible storage solution that will scale from a few terabytes (now) to an unknown, but significantly greater, volume of data in three years’ time. You don’t want to spend a lot of money. Which AWS service would best meet your current and projected storage needs and at the same time make sure the cost is minimal?

You have been engaged as a consultant by a company that generates utility bills and publishes them online. PDF images are generated and then stored on a high-performance RDS instance. Generally, invoices are viewed by customers once per month. Recently, however, the number of customers has increased threefold, and the wait-time necessary to view invoices has increased unacceptably. The CTO is unwilling to alter the codebase more than necessary this quarter, but needs to return performance to an acceptable level before the end-of-the-month print run. Which of the following solutions would you feel comfortable proposing to the CTO and GM? (Choose two.)

Create RDS read replicas and additional web/app instances across all the available AZs., Install an ElastiCache cluster in front of the RDS installation.

What can be used to aggregate several AWS accounts for centralized management and billing tracking?

AWS Organizations

You have a small database workload with infrequent I/O. These databases are mainly used as ad hoc databases for noncritical testing purposes. Which storage medium would be the most cost-effective way to meet these requirements?

Amazon RDS Magnetic Storage

What tool is provided by AWS to compare the cost of locally-implemented solutions with AWS cloud-hosted solutions?

AWS TCO Calculator

You’ve been commissioned to develop a high-availability application with a stateless web tier. Identify the most cost-effective means of reaching this goal.

Use an Elastic Load Balancer, a multi-AZ deployment of an Auto Scaling group of EC2 Spot instances (primary) running in tandem with an Auto Scaling group of EC2 On-Demand instances (secondary), and DynamoDB.

What is the default duration of cost history shown in the Cost Explorer view of AWS?

6 months

100

When should you use a dedicated host for an EC2 instance?

When you require a license to be locked to the hardware

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critical flaw · 98問 · 2年前

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