Implement highly available solutions to meet resilience and business requirements.

14 practice questions under this official exam objective (DOP-C02), each with the answer key, an option-by-option explanation and instant feedback.

Questions under this objective

14 total · page 1 of 1
DOP-C02 A-grade

Enable provisioned concurrency, reuse database connections outside the handler, and route

The load test shows the functions can meet peak volume, but latency spikes on the initial burst because most invocations query the database and a larg

20 comments
DOP-C02 A-grade

AWS S3 Cross-Region Replication for Multi-Region HA

This question tests the configuration of bidirectional Amazon S3 replication to ensure zero data loss during multi-region failover, requiring IAM role

17 comments
DOP-C02 S-grade

Create a Multi-AZ FSx for NetApp ONTAP file system, mount it via user data, and instance r

A single shared durable file system must serve both Windows over SMB and Linux over NFS with sub-millisecond latency across multiple Auto Scaling grou

9 comments
DOP-C02 S-grade

Disable cross-zone load balancing on the target group and start an Application Recovery Co

Route 53 Application Recovery Controller can shift traffic away from a failed Availability Zone for an Application Load Balancer, but AWS documentatio

9 comments
DOP-C02 S-grade

Pre-stage CloudFormation templates in S3 and rely on cross-Region replication for images a

With an RPO of 8 hours and an RTO of 2 hours, and image builds sometimes exceeding 2 hours, the DR artifacts must already exist in the secondary Regio

9 comments
DOP-C02 A-grade

Enable S3 Replication Time Control, create an S3 Multi-Region Access Point, and submit its

The requirement is a 15-minute replication guarantee between two buckets and the ability to fail over to the bucket in the other Region. Enabling S3 R

5 comments
DOP-C02 A-grade

Set the existing WAF web ACL default action to Block and allow the office IP set at priori

Access must be limited to users from the corporate office, which is a known set of source IP addresses, so an AWS WAF IP address set is the matching c

4 comments
DOP-C02 A-grade

Remove one secondary cluster from the Aurora global database to reduce replication lag blo

Write operations on the primary are blocked because the secondary clusters cannot keep up with the configured 60-second RPO target. Each additional se

4 comments
DOP-C02 A-grade

Use On-Demand warm pools for critical data and a separate Spot group scaling on a CloudWat

The critical data analysis cannot tolerate interruption and needs fast scale-out on real-time demand, so it stays on the existing On-Demand Auto Scali

4 comments
DOP-C02 A-grade

Use FSx for NetApp ONTAP in the DR Region with SnapMirror replication from the primary Reg

The migrated workloads include both Windows applications requiring SMB and Linux applications requiring NFS on shared storage, and a pilot light DR en

4 comments
DOP-C02 A-grade

Use an Aurora global database with promotion for data and Route 53 failover routing for th

The objectives are a maximum RPO of 2 hours and a maximum RTO of 10 minutes, so the data tier and the application tier must each have a strategy that

4 comments
DOP-C02 A-grade

Add the secondary ALB as an origin in an origin group that fails over on HTTP 5xx and use

A zero-second RTO with HTTP GET requests cannot be achieved through DNS, because DNS resolution and client-side caching introduce delay. Amazon CloudF

4 comments
DOP-C02 A-grade

Disable cross-zone load balancing on the target group and initiate a zonal shift on the AL

A newer version is running in one Availability Zone for testing and traffic must be taken away from that zone without disrupting the application or di

3 comments
DOP-C02 A-grade

Use two-way S3 bucket replication and convert the DynamoDB tables to global tables

Both data stores must persist in both Regions and must propagate immediately. For S3, two-way bucket replication keeps both Regions continuously synch

3 comments