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Deploying and implementing a cloud solution →easyMultiple ChoiceObjective-mapped

Quick Answer

The answer is `gcloud auth configure-docker us-central1-docker.pkg.dev`. This command is correct because it configures Docker’s credential helper to automatically obtain and refresh short-lived access tokens from Google Cloud, allowing Docker to authenticate to Artifact Registry without storing long-lived keys. On the Google Associate Cloud Engineer exam, this tests your understanding of how IAM and gcloud tooling integrate with container workflows; a common trap is confusing this with `docker login` or `gcloud auth login`, which do not set up the registry-specific credential helper. Remember that `configure-docker` is the only command that writes directly to Docker’s config file for a given registry URL. A helpful memory tip: think of it as “configure Docker to talk to Google’s registry” — the command literally configures Docker, not just your user account.

Google ACE Deploying and implementing a cloud solution Practice Question

This ACE practice question tests your understanding of deploying and implementing a cloud solution. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 development team stores Docker images in Artifact Registry. A new team member needs to pull images to their local machine using Docker. Which command authenticates Docker to pull from a specific Artifact Registry repository in us-central1?

Clue words in this question

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

  • Clue: "which command"

    Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.

Question 1easymultiple choice
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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

✓

gcloud auth configure-docker us-central1-docker.pkg.dev

Option B is correct because `gcloud auth configure-docker` is the official Google Cloud command that configures Docker to authenticate to Artifact Registry. When you specify the registry location (e.g., `us-central1-docker.pkg.dev`), it updates Docker's configuration file with the appropriate credential helper, enabling Docker to automatically obtain and refresh short-lived access tokens for pulling images from that specific repository.

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.

  • ✗

    docker login us-central1-docker.pkg.dev --username=_json_key --password-stdin < key.json

    Why it's wrong here

    While possible with a service account JSON key, this is the legacy approach. `gcloud auth configure-docker` is the recommended keyless method for authenticated users.

  • ✓

    gcloud auth configure-docker us-central1-docker.pkg.dev

    Why this is correct

    This command configures Docker's credential helper to use gcloud credentials for the specified Artifact Registry endpoint — no key file needed if the user is authenticated with `gcloud auth login`.

    Clue confirmation

    The clue word "which command" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    kubectl create secret docker-registry artifactregistry --server=us-central1-docker.pkg.dev

    Why it's wrong here

    This creates a Kubernetes pull secret for cluster use — it doesn't configure Docker on the developer's local machine.

  • ✗

    gcloud artifacts docker auth --region=us-central1

    Why it's wrong here

    `gcloud artifacts docker auth` is not a valid command. Authentication is done via `gcloud auth configure-docker`.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse `gcloud artifacts` (which manages artifact metadata) with `gcloud auth configure-docker` (which sets up Docker authentication), or they mistakenly think a static JSON key file with `docker login` is the correct approach for Artifact Registry.

Trap categories for this question

  • Command / output trap

    `gcloud artifacts docker auth` is not a valid command. Authentication is done via `gcloud auth configure-docker`.

Detailed technical explanation

How to think about this question

Under the hood, `gcloud auth configure-docker` writes a credential helper entry (e.g., `credHelpers` or `credsStore`) into Docker's `config.json` file, pointing to `gcloud` as the helper. When Docker needs to authenticate to `us-central1-docker.pkg.dev`, it invokes the helper, which calls the Google Cloud metadata server or application default credentials to obtain a short-lived OAuth2 access token (typically valid for 1 hour). This token is then passed as the password in a `docker login`-style handshake, ensuring secure, automated authentication without exposing long-lived keys.

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: gcloud auth configure-docker us-central1-docker.pkg.dev — Option B is correct because `gcloud auth configure-docker` is the official Google Cloud command that configures Docker to authenticate to Artifact Registry. When you specify the registry location (e.g., `us-central1-docker.pkg.dev`), it updates Docker's configuration file with the appropriate credential helper, enabling Docker to automatically obtain and refresh short-lived access tokens for pulling images from that specific repository.

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: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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This ACE 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 ACE exam.