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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Sample Questions (Q249-Q254):

NEW QUESTION # 249
A gaming company is designing a highly available architecture. The application runs on a modified Linux kernel and supports only UDP-based traffic. The company needs the front-end tier to provide the best possible user experience. That tier must have low latency, route traffic to the nearest edge location, and provide static IP addresses for entry into the application endpoints.
What should a solutions architect do to meet these requirements?

• A. Configure Amazon CloudFront to forward requests to a Network Load Balancer. Use AWS Lambda for the application in an AWS Application Auto Scaling group.
• B. Configure AWS Global Accelerator to forward requests to a Network Load Balancer. Use Amazon EC2 instances for the application in an EC2 Auto Scaling group.
• C. Configure Amazon API Gateway to forward requests to an Application Load Balancer. Use Amazon EC2 instances for the application in an EC2 Auto Scaling group.
• D. Configure Amazon Route 53 to forward requests to an Application Load Balancer. Use AWS Lambda for the application in AWS Application Auto Scaling.

Answer: B

NEW QUESTION # 250
A Solutions Architect needs to set up a relational database and come up with a disaster recovery plan to mitigate multi-region failure. The solution requires a Recovery Point Objective (RPO) of 1 second and a Recovery Time Objective (RTO) of less than 1 minute.
Which of the following AWS services can fulfill this requirement?

• A. Amazon Aurora Global Database
• B. Amazon RDS for PostgreSQL with cross-region read replicas
• C. Amazon Timestream
• D. Amazon Quantum Ledger Database (Amazon QLDB)

Answer: A

Explanation:
Amazon Aurora Global Database is designed for globally distributed applications, allowing a single Amazon Aurora database to span multiple AWS regions. It replicates your data with no impact on database performance, enables fast local reads with low latency in each region, and provides disaster recovery from region-wide outages.

Aurora Global Database supports storage-based replication that has a latency of less than 1 second. If there is an unplanned outage, one of the secondary regions you assigned can be promoted to read and write capabilities in less than 1 minute. This feature is called Cross-Region Disaster Recovery. An RPO of 1 second and an RTO of less than 1 minute provide you a strong foundation for a global business continuity plan.
Hence, the correct answer is: Amazon Aurora Global Database.
Amazon Quantum Ledger Database (Amazon QLDB) is incorrect because it is stated in the scenario that the Solutions Architect needs to create a relational database and not a ledger database. An Amazon Quantum Ledger Database (QLDB) is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log. Moreover, QLDB cannot provide an RPO of 1 second and an RTO of less than 1 minute.
Multi-AZ Amazon RDS database with cross-region read replicas is incorrect because a Multi-AZ deployment is only applicable inside a single region and not in a multi-region setup. This database setup is not capable of providing an RPO of 1 second and an RTO of less than 1 minute. Moreover, the cross- region RDS Read Replica replication is not as fast as Amazon Aurora Global Databases.
Amazon Timestream is incorrect because this is a serverless time series database service that is commonly used for IoT and operational applications. The most suitable solution for this scenario is to use the Amazon Aurora Global Database since it can provide the required RPO and RTO. References:
https://aws.amazon.com/rds/aurora/global-database/
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-global-database.html Amazon Aurora Overview:
https://youtu.be/iwS1h7rLNBQ
Check out this Amazon Aurora Cheat Sheet:
https://tutorialsdojo.com/amazon-aurora/

NEW QUESTION # 251
A company runs a web application that is backed by Amazon RDS. A new database administrator caused data loss by accidentally editing information in a database table To help recover from this type of incident, the company wants the ability to restore the database to its state from 5 minutes before any change within the last 30 days.
Which feature should the solutions architect include in the design to meet this requirement?

• A. Automated backups
• B. Multi-AZ deployments
• C. Read replicas
• D. Manual snapshots

Answer: A

NEW QUESTION # 252
A company's web application is running on Amazon EC2 instances behind an Application Load Balancer. The company recently changed its policy, which now requires the application to be accessed from one specific country only.
Which configuration will meet this requirement?

• A. Configure the security group on the Application Load Balancer.
• B. Configure the security group for the EC2 instances.
• C. Configure the network ACL for the subnet that contains the EC2 instances.
• D. Configure AWS WAF on the Application Load Balancer in a VPC.

Answer: D

Explanation:
Explanation
https://aws.amazon.com/about-aws/whats-new/2017/10/aws-waf-now-supports-geographic-match/

NEW QUESTION # 253
A company has an application that provides marketing services to stores. The services are based on previous purchases by store customers. The stores upload transaction data to the company through SFTP, and the data is processed and analyzed to generate new marketing offers. Some of the files can exceed 200 GB in size.
Recently, the company discovered that some of the stores have uploaded files that contain personally identifiable information (PII) that should not have been included. The company wants administrators to be alerted if PII is shared again. The company also wants to automate remediation.
What should a solutions architect do to meet these requirements with the LEAST development effort?

• A. Use an Amazon S3 bucket as a secure transfer point. Use Amazon Macie to scan the objects in the bucket. If objects contain Pll. Use Amazon Simple Notification Service (Amazon SNS) to trigger a notification to the administrators to remove the objects mat contain Pll.
• B. Implement custom scanning algorithms in an AWS Lambda function. Trigger the function when objects are loaded into the bucket. It objects contain Rll. use Amazon Simple Notification Service (Amazon SNS) to trigger a notification to the administrators to remove the objects that contain Pll.
• C. Use an Amazon S3 bucket as a secure transfer point. Use Amazon Inspector to scan me objects in the bucket. If objects contain Pll. trigger an S3 Lifecycle policy to remove the objects that contain Pll.
• D. Implement custom scanning algorithms in an AWS Lambda function. Trigger the function when objects are loaded into the bucket. If objects contain Pll. use Amazon Simple Email Service (Amazon STS) to trigger a notification to the administrators and trigger on S3 Lifecycle policy to remove the objects mot contain PII.

Answer: A

NEW QUESTION # 254
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