Free AWS Certified DevOps Engineer - Professional DOP-C02: AWS Certified DevOps Engineer -Professional DOP-C02 Exam Questions and Answers

Last updated: September 13, 2026

Exam code

DOP-C02

Provider

Amazon

Questions in our bank

1000+

Free to read

First 10, with answers

Official page

Official Exam website

Our test mode duration & pass mark

130 mins · 70%

Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.

1. Question #1

   You need to perform ad-hoc business analytics queries on well-structured data. Data comes in constantly at a high velocity. Your business intelligence team can understand SQL. What AWS service(s) should you look to first?

   • A. Kinesis Firehose + RDS
   • B. Kinesis Firehose + RedShift
   • C. EMR using Hive
   • D. EMR running Apache Spark
   Reveal Answer

2. Question #2

   When thinking of AWS Elastic Beanstalk, the 'Swap Environment URLs' feature most directly aids in what?

   • A. Immutable Rolling Deployments
   • B. MutabIe Rolling Deployments
   • C. Canary Deployments
   • D. Blue-Green Deployments
   Reveal Answer

3. Question #3

   You are hired as the new head of operations for a SaaS company. Your CTO has asked you to make debugging any part of your entire operation simpler and as fast as possible. She complains that she has no idea what is going on in the complex, service-oriented architecture, because the developers just log to disk, and it's very hard to find errors in logs on so many services. How can you best meet this requirement and satisfy your CTO?

   • A. Copy all log files into AWS S3 using a cron job on each instanc
   • B. Use an S3 Notification Configuration on the PutBucket event and publish events to AWS Lambd
   • C. Use the Lambda to analyze logs as soon as they come in and flag issues.
   • D. Begin using CIoudWatch Logs on every servic
   Reveal Answer

4. Question #4

   Which EBS volume type is best for high performance NoSQL cluster deployments?

   • A. iol
   • B. gpl
   • C. standard
   • D. gp2
   Reveal Answer

5. Question #5

   When thinking of AWS Elastic BeanstaIk's model, which is true?

   • A. Applications have many deployments, deployments have many environments.
   • B. Environments have many applications, applications have many deployments.
   • C. Applications have many environments, environments have many deployments.
   • D. Deployments have many environments, environments have many application
   Reveal Answer

6. Question #6

   For AWS CIoudFormation, which stack state refuses UpdateStack calls?

   • A. UPDATE_ROLLBACK_FAILED
   • B. UPDATE_ROLLBACK_COMPLETE
   • C. UPDATE_CONIPLETE
   • D. CREATE_COMPLETE
   Reveal Answer

7. Question #7

   You meet once per month with your operations team to review the past month's data. During the meeting, you realize that 3 weeks ago, your monitoring system which pings over HTTP from outside AWS recorded a large spike in latency on your 3-tier web service API. You use DynamoDB for the database layer, ELB, EBS, and EC2 for the business logic tier, and SQS, ELB, and EC2 for the presentation layer. Which of the following techniques will NOT help you figure out what happened?

   • A. Check your CIoudTraiI log history around the spike's time for any API calls that caused slowness.
   • B. Review CIoudWatch Metrics graphs to determine which component(s) slowed the system down.
   • C. Review your ELB access logs in S3 to see if any ELBs in your system saw the latency.
   • D. Analyze your logs to detect bursts in traffic at that tim
   Reveal Answer

8. Question #8

   Which of these is not a CIoudFormation Helper Script?

   • A. cfn-signal
   • B. cfn-hup
   • C. cfn-request
   • D. cfn-get-metadata
   Reveal Answer

9. Question #9

   You are building a mobile app for consumers to post cat pictures online. You will be storing the images in AWS S3. You want to run the system very cheaply and simply. Which one of these options allows you to build a photo sharing application without needing to worry about scaling expensive uploads processes, authentication/authorization and so forth?

   • A. Build the application out using AWS Cognito and web identity federation to allow users to log in using Facebook or Google Account
   • B. Once they are logged in, the secret token passed to that user is used to directly access resources on AWS, like AWS S3.
   • C. Use JWT or SANIL compliant systems to build authorization policie
   • D. Users log in with a username and password, and are given a token they can use indefinitely to make calls against the photo infrastructure.
   Reveal Answer

10. Question #10

    What is required to achieve gigabit network throughput on EC2? You already selected cluster-compute, 10GB instances with enhanced networking, and your workload is already network-bound, but you are not seeing 10 gigabit speeds.

    • A. Enable biplex networking on your servers, so packets are non-blocking in both directions and there's no switching overhead.
    • B. Ensure the instances are in different VPCs so you don't saturate the Internet Gateway on any one VPC.
    • C. Select PIOPS for your drives and mount several, so you can provision sufficient disk throughput.
    • D. Use a placement group for your instances so the instances are physically near each other in the same Availability Zone.
    Reveal Answer