SAA-C03 practice questions 611–620

1. Question 611 · 1017 in bank

   A social media company wants to store its database of user profiles, relationships, and interactions in the AWS Cloud. The company needs an application to monitor any changes in the database. The application needs to analyze the relationships between the data entities and to provide recommendations to users. Which solution will meet these requirements with the LEAST operational overhead?

   • AUse Amazon Neptune to store the information. Use Amazon Kinesis Data Streams to process changes in the database.
   • BUse Amazon Neptune to store the information. Use Neptune Streams to process changes in the database.
   • CUse Amazon Quantum Ledger Database (Amazon QLDB) to store the information. Use Amazon Kinesis Data Streams to process changes in the database.
   • DUse Amazon Quantum Ledger Database (Amazon QLDB) to store the information. Use Neptune Streams to process changes in the database.

   Show answer

   Answer: B

   Explanation

   Amazon Neptune Database is a serverless graph database designed for superior scalability and availability. Neptune Database provides built-in security, continuous backups, and integrations with other AWS services. Suitable for social media. With the Neptune Streams feature, you can generate a complete sequence of change-log entries that record every change made to your graph data as it happens.

   Source: Adapted from community discussion — TariqKipkemei

   References

   • AWS documentation
   • AWS documentation

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2. Question 612 · 1017 in bank

   A company is creating a new application that will store a large amount of data. The data will be analyzed hourly and will be modified by several Amazon EC2 Linux instances that are deployed across multiple Availability Zones. The needed amount of storage space will continue to grow for the next 6 months. Which storage solution should a solutions architect recommend to meet these requirements?

   • AStore the data in Amazon S3 Glacier. Update the S3 Glacier vault policy to allow access to the application instances.
   • BStore the data in an Amazon Elastic Block Store (Amazon EBS) volume. Mount the EBS volume on the application instances.
   • CStore the data in an Amazon Elastic File System (Amazon EFS) file system. Mount the file system on the application instances.
   • DStore the data in an Amazon Elastic Block Store (Amazon EBS) Provisioned IOPS volume shared between the application instances.

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   Answer: C

   Explanation

   C is correct Shared File System: Amazon EFS allows multiple Amazon EC2 instances to mount the same file system simultaneously, making it easy for multiple instances to access and modify the data concurrently.

   Source: Adapted from community discussion — AF_1221

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3. Question 613 · 1017 in bank

   A company manages an application that stores data on an Amazon RDS for PostgreSQL Multi-AZ DB instance. Increases in traffic are causing performance problems. The company determines that database queries are the primary reason for the slow performance. What should a solutions architect do to improve the application's performance?

   • AServe read traffic from the Multi-AZ standby replica.
   • BConfigure the DB instance to use Transfer Acceleration.
   • CCreate a read replica from the source DB instance. Serve read traffic from the read replica.
   • DUse Amazon Kinesis Data Firehose between the application and Amazon RDS to increase the concurrency of database requests.

   Show answer

   Answer: C

   Explanation

   A Multi-AZ DB instance Creates a primary DB instance with one standby DB instance in a different Availability Zone. Using a Multi-AZ DB instance provides high availability, but the standby DB instance doesn't support connections for read workloads. Therefore you will need to create a read replica from the source DB instance then serve read traffic from the read replica.

   Source: Adapted from community discussion — TariqKipkemei

   References

   • AWS documentation

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4. Question 614 · 1017 in bank

   A company collects 10 GB of telemetry data daily from various machines. The company stores the data in an Amazon S3 bucket in a source data account. The company has hired several consulting agencies to use this data for analysis. Each agency needs read access to the data for its analysts. The company must share the data from the source data account by choosing a solution that maximizes security and operational efficiency. Which solution will meet these requirements?

   • AConfigure S3 global tables to replicate data for each agency.
   • BMake the S3 bucket public for a limited time. Inform only the agencies.
   • CConfigure cross-account access for the S3 bucket to the accounts that the agencies own.
   • DSet up an IAM user for each analyst in the source data account. Grant each user access to the S3 bucket.

   Show answer

   Answer: C

   Explanation

   Others have given reason by ABD are wrong. In case you need it, here is an AWS example exercise of understanding option C https://docs.aws.amazon.com/AmazonS3/latest/userguide/example-walkthroughs-managing-access-example2.html

   Source: Adapted from community discussion — awsgeek75

   References

   • AWS documentation

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5. Question 615 · 1017 in bank

   A company uses Amazon FSx for NetApp ONTAP in its primary AWS Region for CIFS and NFS file shares. Applications that run on Amazon EC2 instances access the file shares. The company needs a storage disaster recovery (DR) solution in a secondary Region. The data that is replicated in the secondary Region needs to be accessed by using the same protocols as the primary Region. Which solution will meet these requirements with the LEAST operational overhead?

   • ACreate an AWS Lambda function to copy the data to an Amazon S3 bucket. Replicate the S3 bucket to the secondary Region.
   • BCreate a backup of the FSx for ONTAP volumes by using AWS Backup. Copy the volumes to the secondary Region. Create a new FSx for ONTAP instance from the backup.
   • CCreate an FSx for ONTAP instance in the secondary Region. Use NetApp SnapMirror to replicate data from the primary Region to the secondary Region.
   • DCreate an Amazon Elastic File System (Amazon EFS) volume. Migrate the current data to the volume. Replicate the volume to the secondary Region.

   Show answer

   Answer: C

   Explanation

   This is a very rare usage scenario so here are the docs related to the product: https://docs.aws.amazon.com/fsx/latest/ONTAPGuide/scheduled-replication.html AD: Not compatible solutions B: Either wrongly worded or missing something but if I read it correctly, it means just take a backup and restore whereas the question is about continuous replication. If B was scheduled then it would have made sense C is correct as SnapMirror is a managed solution to replicate the data

   Source: Adapted from community discussion — awsgeek75

   References

   • AWS documentation
   • AWS documentation

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6. Question 616 · 1017 in bank

   A development team is creating an event-based application that uses AWS Lambda functions. Events will be generated when files are added to an Amazon S3 bucket. The development team currently has Amazon Simple Notification Service (Amazon SNS) configured as the event target from Amazon S3. What should a solutions architect do to process the events from Amazon S3 in a scalable way?

   • ACreate an SNS subscription that processes the event in Amazon Elastic Container Service (Amazon ECS) before the event runs in Lambda.
   • BCreate an SNS subscription that processes the event in Amazon Elastic Kubernetes Service (Amazon EKS) before the event runs in Lambda
   • CCreate an SNS subscription that sends the event to Amazon Simple Queue Service (Amazon SQS). Configure the SOS queue to trigger a Lambda function.
   • DCreate an SNS subscription that sends the event to AWS Server Migration Service (AWS SMS). Configure the Lambda function to poll from the SMS event.

   Show answer

   Answer: C

   Explanation

   Amazon SQS is designed for event-driven and scalable message processing. It can handle large volumes of messages and automatically scales based on the incoming workload. This allows for better load distribution and scaling as compared to direct Lambda invocation.

   Source: Adapted from community discussion — potomac

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7. Question 617 · 1017 in bank

   Select 2

   A solutions architect is designing a new service behind Amazon API Gateway. The request patterns for the service will be unpredictable and can change suddenly from 0 requests to over 500 per second. The total size of the data that needs to be persisted in a backend database is currently less than 1 GB with unpredictable future growth. Data can be queried using simple key-value requests. Which combination ofAWS services would meet these requirements? (Choose two.)

   • AAWS Fargate
   • BAWS Lambda
   • CAmazon DynamoDB
   • DAmazon EC2 Auto Scaling
   • EMySQL-compatible Amazon Aurora

   Show answer

   Answer: BC

   Explanation

   Unpredictable scaling of API load = Lambda + SPI Gateway Unpredictable growth of key/value DB = DynamoDB Fargate behind API requires EKS/ECS setup which is not suitable for 0-500 varying load. Same with EC2 autoscaling. Aurora MySQL is not ideal for key/value and is better suited for relational databases

   Source: Adapted from community discussion — awsgeek75

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8. Question 618 · 1017 in bank

   A company collects and shares research data with the company's employees all over the world. The company wants to collect and store the data in an Amazon S3 bucket and process the data in the AWS Cloud. The company will share the data with the company's employees. The company needs a secure solution in the AWS Cloud that minimizes operational overhead. Which solution will meet these requirements?

   • AUse an AWS Lambda function to create an S3 presigned URL. Instruct employees to use the URL.
   • BCreate an IAM user for each employee. Create an IAM policy for each employee to allow S3 access. Instruct employees to use the AWS Management Console.
   • CCreate an S3 File Gateway. Create a share for uploading and a share for downloading. Allow employees to mount shares on their local computers to use S3 File Gateway.
   • DConfigure AWS Transfer Family SFTP endpoints. Select the custom identity provider options. Use AWS Secrets Manager to manage the user credentials Instruct employees to use Transfer Family.

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   Answer: C

   Explanation

   Not A - S3 presigned URLs are temporary (max. 7 days); you'd need to create a new URL at least every 7 days and "instruct employees" to use it. Definitely NOT 'minimizing operational overhead'. Not B - "Instruct employees to use the AWS Management Console", using Management console to up- and download files is complex Not D - Secrets Manager is not for managing user credentials, and employees would not "use Transfer Family", they would use an (S)FTP client to access the files. C grants simple access for up/downloading, no operational overhead.

   Source: Adapted from community discussion — pentium75

   References

   • AWS documentation
   • AWS documentation

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9. Question 619 · 1017 in bank

   A company is building a new furniture inventory application. The company has deployed the application on a fleet ofAmazon EC2 instances across multiple Availability Zones. The EC2 instances run behind an Application Load Balancer (ALB) in their VPC. A solutions architect has observed that incoming traffic seems to favor one EC2 instance, resulting in latency for some requests. What should the solutions architect do to resolve this issue?

   • ADisable session affinity (sticky sessions) on the ALB
   • BReplace the ALB with a Network Load Balancer
   • CIncrease the number of EC2 instances in each Availability Zone
   • DAdjust the frequency of the health checks on the ALB's target group

   Show answer

   Answer: A

   Explanation

   it's A!! Session affinity is a feature of the Application Load Balancer that keeps client requests on the same EC2 instance for the duration of the session. This can cause latency issues if one EC2 instance is overloaded while others are not, as the overloaded instance will handle all subsequent requests until it is taken offline. To resolve this issue, the solutions architect should disable session affinity on the ALB. This can be done by setting the "Session affinity" parameter to "Off" in the ALB's configuration. Disabling session affinity will cause the ALB to distribute requests across all EC2 instances in the target group, rather than keeping them on a single instance. This will help to balance the load and reduce latency for all requests.

   Source: Adapted from community discussion — evelynsun

   References

   • repost.aws documentation

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10. Question 620 · 1017 in bank

    A company has more than 5 TB of file data on Windows file servers that run on premises. Users and applications interact with the data each day. The company is moving its Windows workloads to AWS. As the company continues this process, the company requires access to AWS and on-premises file storage with minimum latency. The company needs a solution that minimizes operational overhead and requires no significant changes to the existing file access patterns. The company uses an AWS Site-to-Site VPN connection for connectivity to AWS. What should a solutions architect do to meet these requirements?

    • ADeploy and configure Amazon FSx for Windows File Server on AWS. Move the on-premises file data to FSx for Windows File Server. Reconfigure the workloads to use FSx for Windows File Server on AWS.
    • BDeploy and configure an Amazon S3 File Gateway on premises. Move the on-premises file data to the S3 File Gateway. Reconfigure the on-premises workloads and the cloud workloads to use the S3 File Gateway.
    • CDeploy and configure an Amazon S3 File Gateway on premises. Move the on-premises file data to Amazon S3. Reconfigure the workloads to use either Amazon S3 directly or the S3 File Gateway. depending on each workload's location.
    • DDeploy and configure Amazon FSx for Windows File Server on AWS. Deploy and configure an Amazon FSx File Gateway on premises. Move the on-premises file data to the FSx File Gateway. Configure the cloud workloads to use FSx for Windows File Server on AWS. Configure the on-premises workloads to use the FSx File Gateway.

    Show answer

    Answer: D

    Explanation

    D IS WRONG - Its used for caching. you cannot 'Move the on-premises file data to the FSx File Gateway.' which is stated in answer D. It pretty sure AWS employee's are spamming this site with the wrong answers intentionally.

    Source: Adapted from community discussion — MrAWS

    References

    • AWS documentation
    • AWS documentation
    • AWS documentation

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SAA-C03 practice, question 611. 1017 questions available.