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Deploying and implementing a cloud solution →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is the HTTP client library’s default 60-second socket/connection timeout. Even though you set the Cloud Function’s `--timeout=540` seconds, that flag controls how long the function runtime will wait before terminating the entire execution, not the timeout for individual outbound HTTP requests. The external API call uses its own HTTP client library (such as `requests` in Python or `http.Client` in Go), which typically has a separate default timeout of 60 seconds for establishing a connection or receiving a response. When that client timeout expires, the request fails silently, and the function logs show completion at 45 seconds because the code finishes without the API response. On the Google Associate Cloud Engineer exam, this tests your understanding that Cloud Functions have two independent timeout layers: the function-level timeout and the HTTP client timeout. A common trap is to assume the function timeout propagates to all sub-calls. Memory tip: think of it as a “nested timeout” — the outer function timeout is a safety net, but the inner HTTP client timeout is the tripwire.

Google ACE Deploying and implementing a cloud solution Practice Question

This ACE practice question tests your understanding of deploying and implementing a cloud solution. 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.

You deploy a Cloud Function (gen1) that calls an external API. During testing you find the function times out after 60 seconds even though you set `--timeout=540`. You also notice the function logs show execution completing in 45 seconds before the timeout. What is the most likely cause of the external timeout?

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.

Question 1mediummultiple choice

Full question →

A
Cloud Functions gen1 has a hard maximum timeout of 60 seconds regardless of configuration.
Why wrong: Cloud Functions gen1 supports up to 540 seconds (9 minutes). The configured 540-second timeout is valid.
B
The HTTP client library used in the function has a default 60-second socket/connection timeout.
Many HTTP client libraries (requests, axios, etc.) have default timeouts shorter than the function timeout. The function timeout controls Cloud Functions' kill signal, not the client library's connection timeout.
C
Cloud VPC restricts outbound connections to 60 seconds.
Why wrong: VPC does not impose a 60-second connection limit on outbound traffic. This is not a VPC feature.
D
The function's service account lacks permission to make outbound HTTP calls.
Why wrong: A permission error would manifest as an auth/403 error, not a timeout. The logs show execution completing, suggesting HTTP calls are being made but timing out.

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 HTTP client library used in the function has a default 60-second socket/connection timeout.

Option B is correct because the external API call is timing out due to the HTTP client library's default socket/connection timeout, which is often set to 60 seconds. Even though the Cloud Function's overall timeout is configured to 540 seconds, the HTTP request itself has its own timeout that expires before the function completes. The function logs show execution finishing in 45 seconds, indicating the function code completes, but the external API call fails silently or the response is not received within the client's timeout window.

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.

✗
Cloud Functions gen1 has a hard maximum timeout of 60 seconds regardless of configuration.
Why it's wrong here
Cloud Functions gen1 supports up to 540 seconds (9 minutes). The configured 540-second timeout is valid.
✓
The HTTP client library used in the function has a default 60-second socket/connection timeout.
Why this is correct
Many HTTP client libraries (requests, axios, etc.) have default timeouts shorter than the function timeout. The function timeout controls Cloud Functions' kill signal, not the client library's connection timeout.
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.
✗
Cloud VPC restricts outbound connections to 60 seconds.
Why it's wrong here
VPC does not impose a 60-second connection limit on outbound traffic. This is not a VPC feature.
✗
The function's service account lacks permission to make outbound HTTP calls.
Why it's wrong here
A permission error would manifest as an auth/403 error, not a timeout. The logs show execution completing, suggesting HTTP calls are being made but timing out.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Google Cloud often tests the distinction between the Cloud Function's execution timeout and the HTTP client library's timeout, leading candidates to incorrectly blame the platform's timeout limit when the actual issue is application-level configuration.

Trap categories for this question

Command / output trap
A permission error would manifest as an auth/403 error, not a timeout. The logs show execution completing, suggesting HTTP calls are being made but timing out.

Detailed technical explanation

How to think about this question

HTTP client libraries in languages like Python (requests), Node.js (axios), or Go (net/http) often have default timeout values (e.g., 60 seconds for socket timeout or connection timeout). These timeouts are separate from the Cloud Function's execution timeout and are controlled by the application code. In a real-world scenario, if the external API is slow or unresponsive, the function may appear to hang until the client's timeout fires, while the function's overall timeout remains unused.

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 ACE question test?

Deploying and implementing a cloud solution — This question tests Deploying and implementing a cloud solution — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The HTTP client library used in the function has a default 60-second socket/connection timeout. — Option B is correct because the external API call is timing out due to the HTTP client library's default socket/connection timeout, which is often set to 60 seconds. Even though the Cloud Function's overall timeout is configured to 540 seconds, the HTTP request itself has its own timeout that expires before the function completes. The function logs show execution finishing in 45 seconds, indicating the function code completes, but the external API call fails silently or the response is not received within the client's timeout window.

What should I do if I get this ACE 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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