← DOP-C02·Amazon Web Services

Question 1,364 of 1,740

SDLC Automation →mediumMultiple SelectObjective-mapped

Quick Answer

The answer is to enable caching in CodeBuild and configure the buildspec file to save the Maven local repository (.m2) to the cache path. This works because CodeBuild can store the downloaded dependencies in an S3 bucket between builds, so subsequent runs restore the .m2 folder instead of re-downloading every artifact from Maven Central. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of the buildspec’s cache: section and the requirement to explicitly set the cache type to S3 in the project configuration. A common trap is assuming caching is automatic or that local caching is a feature—neither is true; you must define the cache path and bucket. Remember the mnemonic “S3 .m2” to recall that S3 caching paired with the Maven local repository path is the correct combination for speeding up Java builds.

DOP-C02 SDLC Automation Practice Question

This DOP-C02 practice question tests your understanding of sdlc automation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A company is using AWS CodeBuild to run builds for a Java application. The build takes a long time because it downloads Maven dependencies every time. The team wants to speed up the build by caching dependencies. Which TWO actions should be taken? (Choose 2)

Question 1mediummulti select

Full question →

A
Enable Amazon S3 caching in the CodeBuild project and specify an S3 bucket to store the cache.
S3 caching allows dependencies to be stored and reused across builds.
B
Use CodeBuild's 'build cache' feature without specifying a bucket; it will automatically cache to a default location.
Why wrong: CodeBuild requires explicit cache configuration; there is no default location.
C
Set the cache type to 'Local' in the CodeBuild project configuration.
Why wrong: CodeBuild supports local caching only for Docker layers, not Maven dependencies.
D
Mount an Amazon EFS file system to the build container and configure Maven to use it as a local repository.
Why wrong: EFS can be used but is not the simplest or recommended caching method for CodeBuild.
E
Configure the buildspec file to save the Maven local repository (.m2) to the cache path.
The buildspec must specify which paths to cache, e.g., /root/.m2.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Enable Amazon S3 caching in the CodeBuild project and specify an S3 bucket to store the cache.

Options B and D are correct. Enabling caching in CodeBuild and specifying a cache bucket stores dependencies. Option A is incorrect because caching is not automatic. Option C is incorrect because EFS is not required. Option E is incorrect because local caching is not a feature.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
Enable Amazon S3 caching in the CodeBuild project and specify an S3 bucket to store the cache.
Why this is correct
S3 caching allows dependencies to be stored and reused across builds.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use CodeBuild's 'build cache' feature without specifying a bucket; it will automatically cache to a default location.
Why it's wrong here
CodeBuild requires explicit cache configuration; there is no default location.
✗
Set the cache type to 'Local' in the CodeBuild project configuration.
Why it's wrong here
CodeBuild supports local caching only for Docker layers, not Maven dependencies.
✗
Mount an Amazon EFS file system to the build container and configure Maven to use it as a local repository.
Why it's wrong here
EFS can be used but is not the simplest or recommended caching method for CodeBuild.
✓
Configure the buildspec file to save the Maven local repository (.m2) to the cache path.
Why this is correct
The buildspec must specify which paths to cache, e.g., /root/.m2.
Related concept
Static NAT maps one inside address to one outside address.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Real-world example

How this comes up in practice

A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.

What to study next

Got this wrong? Here's your next step.

Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.

Related DOP-C02 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Configuration Management and IaC practice questions

Practise DOP-C02 questions linked to Configuration Management and IaC.

Resilient Cloud Solutions practice questions

Practise DOP-C02 questions linked to Resilient Cloud Solutions.

Monitoring and Logging practice questions

Practise DOP-C02 questions linked to Monitoring and Logging.

Incident and Event Response practice questions

Practise DOP-C02 questions linked to Incident and Event Response.

Security and Compliance practice questions

Practise DOP-C02 questions linked to Security and Compliance.

SDLC Automation practice questions

Practise DOP-C02 questions linked to SDLC Automation.

DOP-C02 fundamentals practice questions

Practise DOP-C02 questions linked to DOP-C02 fundamentals.

DOP-C02 scenario practice questions

Practise DOP-C02 questions linked to DOP-C02 scenario.

DOP-C02 troubleshooting practice questions

Practise DOP-C02 questions linked to DOP-C02 troubleshooting.

Practice this exam

Start a free DOP-C02 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

DOP-C02 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this DOP-C02 question test?

SDLC Automation — This question tests SDLC Automation — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: Enable Amazon S3 caching in the CodeBuild project and specify an S3 bucket to store the cache. — Options B and D are correct. Enabling caching in CodeBuild and specifying a cache bucket stores dependencies. Option A is incorrect because caching is not automatic. Option C is incorrect because EFS is not required. Option E is incorrect because local caching is not a feature.

What should I do if I get this DOP-C02 question wrong?

What is the key concept behind this question?

Static NAT maps one inside address to one outside address.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

This DOP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DOP-C02 exam.