Task 2.2: Design Highly Available And/or Fault-Tolerant Architectures SAA-C03 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   How does auto scaling help maintain infrastructure integrity?

   • ABy automatically applying security patches to instances
   • BBy automatically replacing unhealthy instances and adjusting capacity based on demand
   • CBy backing up data to S3
   • DBy encrypting all data at rest
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which AWS service is purpose-built for running containerized applications without managing the underlying servers?

   • AAmazon Lightsail
   • BAmazon ECS
   • CAWS Lambda
   • DAmazon EC2
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A financial services company runs a critical reporting application in the us-east-1 Region. The application writes daily reports to an Amazon S3 bucket. The compliance team requires that reports be recoverable within 15 minutes of a regional disaster and that no more than 1 hour of report data be lost. The company currently takes daily snapshots of the S3 bucket and stores them in the same Region. Which strategy should a solutions architect recommend to meet these requirements?

   • AConfigure S3 Transfer Acceleration on the source bucket to speed up replication to a bucket in us-west-2.
   • BEnable S3 Cross-Region Replication to a bucket in us-west-2 and configure S3 Lifecycle rules to transition objects to S3 Glacier Instant Retrieval after 30 days.
   • CEnable S3 Versioning and S3 Cross-Region Replication to a bucket in us-west-2. Document a runbook to restore the application in us-west-2 using AWS CloudFormation.
   • DTake hourly S3 bucket snapshots and copy them to an S3 bucket in the same Region using the AWS CLI.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which type of load balancer operates at the application layer (Layer 7) and is best suited for HTTP/HTTPS traffic?

   • ANetwork Load Balancer (NLB)
   • BClassic Load Balancer (CLB)
   • CGateway Load Balancer (GWLB)
   • DApplication Load Balancer (ALB)
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   A company runs a critical application in the us-east-1 Region. The application uses an Amazon Aurora MySQL database and stores files in Amazon S3. The company's disaster recovery plan requires an RPO of 15 minutes and an RTO of 2 hours. The company has a limited budget and wants to minimize the cost of the DR environment. Which DR strategy should a solutions architect recommend?

   • AActive-active: Run the application in both Regions and use Route 53 to route traffic to both Regions.
   • BWarm standby: Run a scaled-down version of the application in the recovery Region with a replicated Aurora database and S3 bucket.
   • CBackup and restore: Take daily snapshots of the Aurora database and copy the S3 bucket to another Region using S3 Cross-Region Replication.
   • DPilot light: Replicate the Aurora database to a standby instance in the recovery Region and keep the S3 bucket replicated. Run a small portion of the application in the recovery Region.
   Reveal Solution Discussion Select an answer first