Task Statement 3.1: Implement Highly Available Solutions to Meet Resilience and Business Requirements. DOP-C02 Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A company runs a customer relationship management (CRM) system on Amazon RDS for MySQL with a Multi-AZ deployment. The system is used by sales teams globally. The company has set an RPO of 1 hour and an RTO of 2 hours for the database. The company is considering a multi-Region architecture to protect against a regional disaster. Which solution should the company choose to meet the RPO and RTO with the LEAST operational overhead?

   • AUse AWS Database Migration Service (DMS) to continuously replicate data to a second RDS instance in another Region.
   • BEnable cross-Region read replicas for the RDS instance and promote a replica during a disaster.
   • CExport the RDS database to Amazon S3 using AWS Backup and restore it in a second Region during a disaster.
   • DUse a self-managed MySQL database on EC2 instances with synchronous replication across two Regions.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which AWS service is a regional load balancer that can distribute traffic across EC2 instances in multiple Availability Zones?

   • AApplication Load Balancer
   • BAmazon Route 53
   • CAWS Global Accelerator
   • DAmazon CloudFront
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A company runs a session-based web application on EC2 instances in an Auto Scaling group across two Availability Zones. The application stores session data in an Amazon ElastiCache for Redis cluster. The company wants to ensure that session data is not lost if an EC2 instance fails. Which solution should the company implement?

   • AEnable session stickiness on the Application Load Balancer (ALB).
   • BUse an Amazon RDS for MySQL database to store session data.
   • CConfigure ElastiCache for Redis with Multi-AZ and automatic failover enabled.
   • DStore session data in an Amazon S3 bucket and have the application read from S3.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which AWS service can be configured to automatically replicate objects across AWS Regions for disaster recovery?

   • AAmazon CloudFront
   • BAWS Lambda
   • CAmazon VPC
   • DAmazon S3 cross-Region replication
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A gaming company runs a global leaderboard service using Amazon DynamoDB. The service is accessed by players worldwide and must remain available even if an entire AWS Region becomes unavailable. The company has set an RPO of 5 minutes and an RTO of 15 minutes. Which solution meets these requirements with the LEAST operational overhead?

   • ACreate a second DynamoDB table in another Region and use AWS Database Migration Service (DMS) to continuously replicate data.
   • BEnable DynamoDB global tables with two AWS Regions and configure the application to use the 'latest' region endpoint.
   • CUse DynamoDB on-demand capacity and configure an Amazon Route 53 failover routing policy with a health check on the primary Region endpoint.
   • DExport the DynamoDB table to Amazon S3 using AWS Backup and restore it in a second Region during a disaster.
   Reveal Solution Discussion Select an answer first