AWS-Solution-Architect-Associate Free Practice Test

- (Topic 1)
A company stores call transcript files on a monthly basis. Users access the files randomly within 1 year of the call, but users access the files infrequently after 1 year. The company wants to optimize its solution by giving users the ability to query and retrieve files that are less than 1-year-old as quickly as possible. A delay in retrieving older files is acceptable.
Which solution will meet these requirements MOST cost-effectively?

1. A. Store individual files with tags in Amazon S3 Glacier Instant Retrieva
2. B. Query the tags to retrieve the files from S3 Glacier Instant Retrieval.
3. C. Store individual files in Amazon S3 Intelligent-Tierin
4. D. Use S3 Lifecycle policies to move the files to S3 Glacier Flexible Retrieval after 1 yea
5. E. Query and retrieve the files that are in Amazon S3 by using Amazon Athen
6. F. Query and retrieve the files that are in S3 Glacier by using S3 Glacier Select.
7. G. Store individual files with tags in Amazon S3 Standard storag
8. H. Store search metadata for each archive in Amazon S3 Standard storag
9. I. Use S3 Lifecycle policies to move the files to S3 Glacier Instant Retrieval after 1 yea
10. J. Query and retrieve the files by searching for metadata from Amazon S3.
11. K. Store individual files in Amazon S3 Standard storag
12. L. Use S3 Lifecycle policies to move the files to S3 Glacier Deep Archive after 1 yea
13. M. Store search metadata in Amazon RD
14. N. Query the files from Amazon RD
15. O. Retrieve the files from S3 Glacier Deep Archive.

Correct Answer: B
"For archive data that needs immediate access, such as medical images, news media assets, or genomics data, choose the S3 Glacier Instant Retrieval storage class, an archive storage class that delivers the lowest cost storage with milliseconds retrieval. For archive data that does not require immediate access but needs the flexibility to retrieve large sets of data at no cost, such as backup or disaster recovery use cases, choose S3 Glacier Flexible Retrieval (formerly S3 Glacier), with retrieval in minutes or free bulk retrievals in 5- 12 hours." https://aws.amazon.com/about-aws/whats-new/2021/11/amazon-s3-glacier-instant-retrieval-storage-class/

- (Topic 4)
A solutions architect needs to copy files from an Amazon S3 bucket to an Amazon Elastic File System (Amazon EFS) file system and another S3 bucket. The files must be copied continuously. New files are added to the original S3 bucket consistently. The copied files should be overwritten only if the source file changes.
Which solution will meet these requirements with the LEAST operational overhead?

1. A. Create an AWS DataSync location for both the destination S3 bucket and the EFS file syste
2. B. Create a task for the destination S3 bucket and the EFS file syste
3. C. Set the transfer mode to transfer only data that has changed.
4. D. Create an AWS Lambda functio
5. E. Mount the file system to the functio
6. F. Set up an S3 event notification to invoke the function when files are created and changed in Amazon S3. Configure the function to copy files to the file system and the destination S3 bucket.
7. G. Create an AWS DataSync location for both the destination S3 bucket and the EFS file syste
8. H. Create a task for the destination S3 bucket and the EFS file syste
9. I. Set the transfer mode to transfer all data.
10. J. Launch an Amazon EC2 instance in the same VPC as the file syste
11. K. Mount the file syste
12. L. Create a script to routinely synchronize all objects that changed in the origin S3 bucket to the destination S3 bucket and the mounted file system.

Correct Answer: A
AWS DataSync is a service that makes it easy to move large amounts of data between AWS storage services and on-premises storage systems. AWS DataSync can copy files from an S3 bucket to an EFS file system and another S3 bucket continuously, as well as overwrite only the files that have changed in the source. This solution will meet the requirements with the least operational overhead, as it does not require any code development or manual intervention.
References:
✑ 4 explains how to create AWS DataSync locations for different storage services.
✑ 5 describes how to create and configure AWS DataSync tasks for data transfer.
✑ 6 discusses the different transfer modes that AWS DataSync supports.

- (Topic 3)
A company has deployed a server less application that invokes an AWS Lambda function when new documents are uploaded to an Amazon S3 bucket The application uses the Lambda function to process the documents After a recent marketing campaign the company noticed that the application did not process many of The documents
What should a solutions architect do to improve the architecture of this application?

1. A. Set the Lambda function's runtime timeout value to 15 minutes
2. B. Configure an S3 bucket replication policy Stage the documents m the S3 bucket for later processing
3. C. Deploy an additional Lambda function Load balance the processing of the documents across the two Lambda functions
4. D. Create an Amazon Simple Queue Service (Amazon SOS) queue Send the requests to the queue Configure the queue as an event source for Lambda.

Correct Answer: D
To improve the architecture of this application, the best solution would be to use Amazon Simple Queue Service (Amazon SQS) to buffer the requests and decouple the S3 bucket from the Lambda function. This will ensure that the documents are not lost and can be processed at a later time if the Lambda function is not available. This will ensure that the documents are not lost and can be processed at a later time if the Lambda function is not available. By using Amazon SQS, the architecture is decoupled and the Lambda function can process the documents in a scalable and fault-tolerant manner

- (Topic 2)
A gaming company hosts a browser-based application on AWS. The users of the application consume a large number of videos and images that are stored in Amazon S3. This content is the same for all users.
The application has increased in popularity, and millions of users worldwide are accessing these media files. The company wants to provide the files to the users while reducing the load on the origin.
Which solution meets these requirements MOST cost-effectively?

1. A. Deploy an AWS Global Accelerator accelerator in front of the web servers.
2. B. Deploy an Amazon CloudFront web distribution in front of the S3 bucket.
3. C. Deploy an Amazon ElastiCache for Redis instance in front of the web servers.
4. D. Deploy an Amazon ElastiCache for Memcached instance in front of the web servers.

Correct Answer: B
ElastiCache, enhances the performance of web applications by quickly retrieving information from fully-managed in-memory data stores. It utilizes Memcached and Redis, and manages to considerably reduce the time your applications would, otherwise, take to read data from disk-based databases. Amazon CloudFront supports dynamic content from HTTP and WebSocket protocols, which are based on the Transmission Control Protocol (TCP) protocol. Common use cases include dynamic API calls, web pages and web applications, as well as an application's static files such as audio and images. It also supports on-demand media streaming over HTTP. AWS Global Accelerator supports both User Datagram Protocol (UDP) and TCP-based protocols. It is commonly used for non- HTTP use cases, such as gaming, IoT and voice over IP. It is also good for HTTP use cases that need static IP addresses or fast regional failover

- (Topic 4)
A company needs to retain its AWS CloudTrail logs for 3 years. The company is enforcing CloudTrail across a set of AWS accounts by using AWS Organizations from the parent account. The CloudTrail target S3 bucket is configured with S3 Versioning enabled. An S3 Lifecycle policy is in place to delete current objects after 3 years.
After the fourth year of use of the S3 bucket, the S3 bucket metrics show that the number of objects has continued to rise. However, the number of new CloudTrail logs that are delivered to the S3 bucket has remained consistent.
Which solution will delete objects that are older than 3 years in the MOST cost-effective manner?

1. A. Configure the organization’s centralized CloudTrail trail to expire objects after 3 years.
2. B. Configure the S3 Lifecycle policy to delete previous versions as well as current versions.
3. C. Create an AWS Lambda function to enumerate and delete objects from Amazon S3 that are older than 3 years.
4. D. Configure the parent account as the owner of all objects that are delivered to the S3 bucket.

Correct Answer: B
https://docs.aws.amazon.com/awscloudtrail/latest/userguide/best-practices- security.html#:~:text=The CloudTrail trail,time has passed.