AWS Certified Solutions Architect

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Questions and Answers

Which combination of steps should a solutions architect take to provide a highly available storage solution for a gaming application using Amazon EC2 instances? (Select TWO.)

Store the server-side code on Amazon Elastic File System (Amazon EFS). Mount the EFS volume on each EC2 instance to share the files. (correct)
Store the static files on Amazon S3. Use Amazon ElastiCache to cache objects at the edge.
Store the static files on Amazon S3. Use Amazon CloudFront to cache objects at the edge. (correct)
Store the server-side code on Amazon FSx for Windows File Server. Mount the FSx for Windows File Server volume on each EC2 instance to share the files.

In order to secure access to an Amazon S3 bucket from EC2 instances inside a VPC, which steps should a solutions architect take? (Select TWO.)

Configure a VPC gateway endpoint for Amazon S3 within the VPC. (correct)
Create an IAM user with an S3 access policy and copy the IAM credentials to the EC2 instance.
Create a bucket policy that limits access only to the application tier running in the VPC. (correct)
Create a bucket policy to make the objects in the S3 bucket public.

What steps should a solutions architect take to ensure a seamless migration of an on-premises PostgreSQL database to Amazon Aurora PostgreSQL? (Select TWO.)

Create a database backup of the on-premises database. (correct)
Install a new database instance on Amazon RDS before migration.
Create an ongoing replication task. (correct)
Take the on-premises database offline during migration.

Which method is appropriate for caching objects at the edge for a web application hosted on AWS? (Select TWO.)

Use Amazon CloudFront to cache static and dynamic content. (A), Use Amazon S3 to hold cached files that are served directly to users. (B) Signup and view all the answers

What is the best approach to ensure a scalable and resilient architecture for a gaming application's scoreboard? (Select TWO.)

Implement an application load balancer to distribute traffic among EC2 instances. (B), Scale the EC2 instances based on CloudWatch metrics. (D) Signup and view all the answers

To maintain online connectivity with an imperative data migration, which statement is correct regarding the PostgreSQL database migration to Amazon Aurora? (Select TWO.)

Ongoing replication must be established to keep the Aurora database synchronized. (A), The on-premises database needs to remain online and accessible during the migration. (C) Signup and view all the answers

What configuration steps help secure a sensitive S3 bucket from an EC2 application tier in a VPC? (Select TWO.)

Enable a VPC endpoint for Amazon S3 to keep traffic private. (B), Use an IAM role with specific S3 access permissions for EC2 instances. (D) Signup and view all the answers

Which method of managing object access in an Amazon S3 bucket strengthens security for a server-side application? (Select TWO.)

Implement a bucket policy that specifies conditions for access based on application needs. (A), Set bucket permissions to allow access only from specific IP ranges. (B) Signup and view all the answers

Which solution will resolve the database issue with the least operational overhead?

Create a read replica of the database and configure the script to query only the read replica (A) Signup and view all the answers

What is the recommended approach for securely separating the R&D AWS account into its own organization?

Invite the R&D AWS account to be part of the new organization after it has left the current one (B) Signup and view all the answers

Which architecture would best ensure high availability and scalability for a web-based map application during disasters?

Use Amazon API Gateway and AWS Lambda to receive the JSON status data and store it in Amazon S3 (D) Signup and view all the answers

For a company's mobile app sending JSON messages to a REST-based endpoint, which option provides the best automation for scaling?

Use Amazon API Gateway and AWS Lambda to receive the JSON status data (D) Signup and view all the answers

What is the most efficient method to manage peak loads during high-traffic periods for the map application?

Implement load balancers with EC2 instances in an Auto Scaling group (C) Signup and view all the answers

What resource should be utilized to improve the performance of querying a database for common entries?

Use Amazon ElastiCache to cache the common queries (C) Signup and view all the answers

Which AWS service combination reduces costs for the application that doesn't want to pay for idle capacity?

Amazon Lambda and API Gateway for serverless computing (A) Signup and view all the answers

Which option should be avoided when migrating the R&D AWS account to a new organization?

Inviting the old account to join the new organization before separation (B) Signup and view all the answers

Which solution minimizes operational overhead while addressing slow application performance?

Configure an S3 event notification for uploads. (D) Signup and view all the answers

What is the most effective solution for timely backups to Amazon S3 with minimal internet impact?

Implement a new AWS Direct Connect for backup traffic. (A) Signup and view all the answers

For a company storing call transcripts accessed frequently within 1 year, what is the best storage class after 1 year?

S3 Standard-IA for infrequent access. (A) Signup and view all the answers

Which method can ensure data transfer from on-premises applications to S3 without significant bandwidth issues?

Batch data and send it during off-peak hours. (D) Signup and view all the answers

What is a long-term solution for transferring data that minimizes reliance on public internet?

Establish a direct connection to AWS services. (C) Signup and view all the answers

Which of these is NOT a suitable approach for scaling EC2 instances?

Creating a second EventBridge rule. (A) Signup and view all the answers

For handling large amounts of time-sensitive data from an on-premises application, which solution is ideal?

Utilizing AWS DataSync for efficient data transfer. (C) Signup and view all the answers

Which approach can include minimal configuration while handling events from an S3 bucket?

Using Amazon SNS for event notifications. (A) Signup and view all the answers

What should the solutions architect do to ensure documents continue to load during the scheduled DAX maintenance window?

Modify the application to write to the stream for later loading. (D) Signup and view all the answers

Which option allows a company to manage increased application traffic with minimal configuration for an ASP.NET MVC application hosted on a single EC2 instance?

Move the application to AWS Elastic Beanstalk. (C) Signup and view all the answers

What is the purpose of using Amazon DynamoDB Accelerator (DAX) in the application?

To provide speed improvements for DynamoDB tables. (A) Signup and view all the answers

Which solution minimizes disruptions during DAX cluster maintenance while maintaining document availability?

Using DynamoDB Streams to manage writes during maintenance. (B) Signup and view all the answers

What is a downside of converting the application to an AWS Lambda function to handle maintenance downtime?

Lambda functions have limited run times. (D) Signup and view all the answers

What is a suitable way for the application to handle loading documents to DynamoDB during DAX maintenance?

Use an Amazon SQS queue and Lambda function. (A) Signup and view all the answers

What configuration change can reduce slow response times for an ASP.NET MVC application during peak hours?

Implement load-based and scheduled auto scaling. (B) Signup and view all the answers

What does configuring an AWS Lambda function to read from an SQS queue help achieve?

Decoupling of application components. (B) Signup and view all the answers

Which storage solution is recommended for preserving user access methods while ensuring high availability and durability for Windows workloads?

Extend the file share environment to Amazon FSx for Windows File Server with a Multi-AZ configuration (D) Signup and view all the answers

What is a key requirement for the company when moving their web application to AWS?

The ability to frequently test new site features (B) Signup and view all the answers

Which deployment strategy allows the company to switch between different environments for testing new features in a managed manner?

Deploying to AWS Elastic Beanstalk and using URL swapping (B) Signup and view all the answers

What configuration is necessary when deploying a containerized application to ensure dynamic routing between containers?

Using the AWS Load Balancer Controller (D) Signup and view all the answers

Which option is NOT part of the recommended approach for setting up a highly available web application on AWS?

Avoiding redundancy to minimize costs (C) Signup and view all the answers

What is a potential benefit of using an AWS Elastic Beanstalk environment for the web application?

Automatic scaling and management of resources (D) Signup and view all the answers

Which solution provides a managed service for file shares while ensuring high availability?

Extending to Amazon FSx for Windows File Server (B) Signup and view all the answers

What is a common misconception about using Amazon EC2 instances for hosting a web application?

EC2 instances require no additional management (B) Signup and view all the answers

What is the most effective way to ensure customer data is recorded during database upgrades when using AWS Lambda functions?

Persist customer data to Lambda local storage until the database is available. (A) Signup and view all the answers

Which method ensures personally identifiable information (PII) is removed from audio files stored in Amazon S3?

Set up an Amazon Transcribe transcription job with PII redaction. (D) Signup and view all the answers

What solution should be implemented to store customer audio transcriptions securely after processing from S3?

Store the output in a separate S3 bucket for security and organization. (A) Signup and view all the answers

To automatically trigger a transcription process when an audio file is uploaded to S3, which service should be used?

Amazon EventBridge to create the event-driven model. (C) Signup and view all the answers

What action should be taken when processing audio files to ensure compliance with privacy regulations?

Encrypt audio files with server-side encryption upon upload. (C) Signup and view all the answers

What is the role of AWS Lambda in the audio transcription process?

To invoke transcription jobs automatically from S3 events. (D) Signup and view all the answers

When using Amazon Transcribe, what must be enabled to ensure PII is taken into consideration during the transcription?

The PII redaction feature must be enabled. (A) Signup and view all the answers

What could be a potential drawback of using a retry mechanism in Lambda functions for storing customer data?

It may cause data duplication if not managed properly. (D) Signup and view all the answers

Flashcards

Minimizing operational overhead for application performance

The best solution to improve application performance with the least operational overhead is using S3 event notifications to an SNS topic.

Long-term solution for timely backups with minimal network impact

Using an AWS Direct Connect connection to directly route backup traffic to S3 minimizes internet bandwidth usage for internal users.

Data backup approach for large, time-sensitive data

AWS Snowball devices can efficiently transfer large amounts of data through physical devices, reducing network transfer time.

Monthly call transcript file storage

Call transcript files are stored monthly and accessed within one year of the call, with infrequent access after that timeframe.