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Question 39 of 1,750

SDLC Automation →hardMultiple ChoiceObjective-mapped

DOP-C02 SDLC Automation Practice Question

This DOP-C02 practice question tests your understanding of sdlc automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 uses AWS CodeBuild to compile and test their Java application. The build takes about 20 minutes. They have enabled Amazon S3 cache to store the Maven repository to speed up subsequent builds. However, they notice that the build time has not improved significantly. The buildspec file includes the 'cache' section with 'paths' pointing to '/root/.m2'. The CodeBuild project has cache type set to 'S3' and a valid bucket. The build logs show that the cache is being downloaded and uploaded, but the Maven dependencies are still being downloaded from the internet each time. What is the most likely cause?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

A
The cache is too large and takes as long to download as the build itself.
Why wrong: The logs show cache is being downloaded, but dependencies are still downloaded from internet, indicating cache is not effective.
B
The S3 bucket is in a different region than the CodeBuild project.
Why wrong: Cross-region caching works, but latency may increase; however, cache would still be used.
C
The buildspec file does not include the 'cache' section correctly.
Why wrong: The problem states the cache section is included.
D
The Maven dependencies are not being stored in the local repository path specified in the cache.
If Maven is configured to download dependencies to a different location, the cache won't capture them.

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

✓

The Maven dependencies are not being stored in the local repository path specified in the cache.

The correct answer is D. The cache is configured to store the Maven local repository at '/root/.m2', but Maven by default stores dependencies in the home directory of the user running the build (e.g., '/root/.m2'). However, the build may be running as a different user or Maven may be configured to use a different local repository path (e.g., via settings.xml or the 'maven.repo.local' property). If the dependencies are not being written to '/root/.m2', the cache will not capture them, and dependencies will be re-downloaded. Option A is incorrect because the cache is being downloaded and uploaded, but the issue is that the cache does not contain the dependencies. Option B is incorrect because S3 bucket region does not prevent cache download/upload, and logs show cache is being transferred. Option C is incorrect because the buildspec includes the cache section correctly, as shown by the cache operations in logs.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

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

✗
The cache is too large and takes as long to download as the build itself.
Why it's wrong here
The logs show cache is being downloaded, but dependencies are still downloaded from internet, indicating cache is not effective.
✗
The S3 bucket is in a different region than the CodeBuild project.
Why it's wrong here
Cross-region caching works, but latency may increase; however, cache would still be used.
✗
The buildspec file does not include the 'cache' section correctly.
Why it's wrong here
The problem states the cache section is included.
✓
The Maven dependencies are not being stored in the local repository path specified in the cache.
Why this is correct
If Maven is configured to download dependencies to a different location, the cache won't capture them.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Trap categories for this question

Command / output trap
The logs show cache is being downloaded, but dependencies are still downloaded from internet, indicating cache is not effective.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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.

Quick reference

AWS S3 Storage Class Comparison

Storage Class	Min Duration	Retrieval	Use Case
S3 Standard	None	Immediate	Frequently accessed data
S3 Standard-IA	30 days	Immediate	Infrequent access, rapid retrieval
S3 One Zone-IA	30 days	Immediate	Non-critical infrequent data
S3 Intelligent-Tiering	None	Immediate–hours	Unknown or changing access patterns
S3 Glacier Instant	90 days	Milliseconds	Archive with instant retrieval
S3 Glacier Flexible	90 days	Minutes–hours	Archive, flexible retrieval
S3 Glacier Deep Archive	180 days	Hours	Long-term compliance archive

What to study next

Got this wrong? Here's your next step.

Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this DOP-C02 question test?

SDLC Automation — This question tests SDLC Automation — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The Maven dependencies are not being stored in the local repository path specified in the cache. — The correct answer is D. The cache is configured to store the Maven local repository at '/root/.m2', but Maven by default stores dependencies in the home directory of the user running the build (e.g., '/root/.m2'). However, the build may be running as a different user or Maven may be configured to use a different local repository path (e.g., via settings.xml or the 'maven.repo.local' property). If the dependencies are not being written to '/root/.m2', the cache will not capture them, and dependencies will be re-downloaded. Option A is incorrect because the cache is being downloaded and uploaded, but the issue is that the cache does not contain the dependencies. Option B is incorrect because S3 bucket region does not prevent cache download/upload, and logs show cache is being transferred. Option C is incorrect because the buildspec includes the cache section correctly, as shown by the cache operations in logs.

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

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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