← DOP-C02·Amazon Web Services

Question 367 of 1,750

SDLC Automation →mediumMultiple ChoiceObjective-mapped

Troubleshooting AWS CodeDeploy ScriptMissing Error

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.

An organization uses AWS CodeDeploy to deploy applications to Amazon EC2 instances. The deployment is failing consistently with the error 'ScriptMissing' for the AppSpec lifecycle hook 'ApplicationStop'. The scripts are located in the /opt/scripts directory on the instances. What is the most likely cause of this error?

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 ApplicationStop hook is not defined in the AppSpec file.
Why wrong: If not defined, the hook would not run, but the error indicates it is defined but script missing.
B
The CodeDeploy agent is not the latest version.
Why wrong: Agent version does not cause ScriptMissing errors.
C
The AppSpec file specifies a path to the script that does not exist on the instance.
ScriptMissing indicates the script file was not found at the specified location.
D
The scripts have incorrect file permissions.
Why wrong: Permissions issues typically cause permission denied errors, not ScriptMissing.

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 AppSpec file specifies a path to the script that does not exist on the instance.

The 'ScriptMissing' error in AWS CodeDeploy indicates that the deployment lifecycle hook (in this case, 'ApplicationStop') cannot find the script file at the path specified in the AppSpec file. Since the scripts are located in /opt/scripts, the most likely cause is that the AppSpec file's 'location' field for the ApplicationStop hook points to a path that does not match the actual file location on the instance, or the script file itself is missing from that directory.

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 ApplicationStop hook is not defined in the AppSpec file.
Why it's wrong here
If not defined, the hook would not run, but the error indicates it is defined but script missing.
✗
The CodeDeploy agent is not the latest version.
Why it's wrong here
Agent version does not cause ScriptMissing errors.
✓
The AppSpec file specifies a path to the script that does not exist on the instance.
Why this is correct
ScriptMissing indicates the script file was not found at the specified location.
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.
✗
The scripts have incorrect file permissions.
Why it's wrong here
Permissions issues typically cause permission denied errors, not ScriptMissing.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse 'ScriptMissing' with permission errors or agent issues, but AWS specifically uses 'ScriptMissing' to indicate the file path is incorrect or the file is absent, not that the file exists but cannot be executed.

Detailed technical explanation

How to think about this question

CodeDeploy resolves script paths relative to the instance's filesystem, and the 'location' field in the AppSpec file must be an absolute path or relative to the deployment archive root. If the script is stored in /opt/scripts but the AppSpec references a different path (e.g., scripts/application_stop.sh without the full path), the agent will fail with 'ScriptMissing'. This error can also occur if the script was not included in the deployment archive or was deleted before the hook ran.

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.

TExam Day Tips

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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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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 AppSpec file specifies a path to the script that does not exist on the instance. — The 'ScriptMissing' error in AWS CodeDeploy indicates that the deployment lifecycle hook (in this case, 'ApplicationStop') cannot find the script file at the path specified in the AppSpec file. Since the scripts are located in /opt/scripts, the most likely cause is that the AppSpec file's 'location' field for the ApplicationStop hook points to a path that does not match the actual file location on the instance, or the script file itself is missing from that directory.

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

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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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