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PCD Practice Question: A developer notices that a Cloud Function is…

A developer notices that a Cloud Function is timing out after 60 seconds. The function makes an external API call that occasionally takes longer than the timeout. What is the best practice to handle this?

⚠ Common exam trap

Google Cloud often tests the misconception that retry logic alone can solve timeout issues, but the trap here is that retries do not extend the execution window—the function must complete within the configured timeout for any single invocation to succeed.

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

Increase the timeout for the specific Cloud Function to a higher value

Cloud Functions have a configurable timeout per function (up to 540 seconds for HTTP functions). Increasing the timeout for the specific function that makes the slow external API call directly addresses the timeout issue without affecting other functions or introducing unnecessary retry overhead. This is the most targeted and efficient solution.

Answer analysis

Option-by-option breakdown

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

  • Implement retry logic without changing the timeout

    Why it's wrong here

    Retries without a longer timeout will still fail.

  • Increase the timeout for all Cloud Functions in the project

    Why it's wrong here

    Increasing all timeouts is not a best practice and may hide issues.

  • Increase the timeout for the specific Cloud Function to a higher value

    Why this is correct

    Adjusting the timeout for the specific function allows the external call to complete.

  • Decrease the timeout to fail fast and implement retry logic

    Why it's wrong here

    Decreasing timeout would cause more failures.

Quick reference

Cloud Service Model Comparison

ModelYou ManageProvider ManagesExamples
IaaSOS, runtime, apps, dataHardware, hypervisor, networkingEC2, Azure VMs, GCP Compute Engine
PaaSApps and dataOS, runtime, middleware, hardwareElastic Beanstalk, Azure App Service
SaaSData and settings onlyEverything elseMicrosoft 365, Salesforce, Workday
FaaS / ServerlessFunction code onlyInfra, scaling, runtimeLambda, Azure Functions, Cloud Run
CaaSContainers and appsKubernetes, OS, hardwareEKS, AKS, GKE

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This PCD practice question is part of Courseiva's free Google Cloud 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 PCD exam.