- A
The Redis AUTH password.
AUTH requires a password to access the instance.
- B
The IAM role 'Memorystore User'.
Why wrong: IAM roles control API access, not Redis AUTH.
- C
The client certificate and private key.
Why wrong: Memorystore for Redis does not use client certificates for authentication.
- D
The service account key file.
Why wrong: Service accounts are used for GCP API authentication, not Redis AUTH.
Question 924 of 1,000
PCDOE Manage Database Solutions Practice Question
This PCDOE practice question tests your understanding of manage database solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 developer needs to connect to a Memorystore for Redis instance from a Compute Engine VM in the same VPC network. The Redis instance has AUTH enabled. What must the developer provide in the connection string?
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 Redis AUTH password.
When AUTH is enabled on a Memorystore for Redis instance, the client must provide the AUTH password in the connection string (e.g., `redis://:password@host:6379`) or via the `AUTH` command after connecting. This password is set during instance creation and is required for authentication before any data commands can be executed. Without it, the Redis server will reject the connection with a `NOAUTH Authentication required` error.
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 Redis AUTH password.
Why this is correct
AUTH requires a password to access the instance.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The IAM role 'Memorystore User'.
Why it's wrong here
IAM roles control API access, not Redis AUTH.
- ✗
The client certificate and private key.
Why it's wrong here
Memorystore for Redis does not use client certificates for authentication.
- ✗
The service account key file.
Why it's wrong here
Service accounts are used for GCP API authentication, not Redis AUTH.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between control-plane IAM permissions and data-plane authentication mechanisms, leading candidates to incorrectly select IAM roles for Redis AUTH.
Detailed technical explanation
How to think about this question
Redis AUTH uses the `AUTH <password>` command over the Redis serialization protocol (RESP), and the password is sent in plaintext unless TLS is enabled. Memorystore for Redis supports both AUTH and in-transit encryption (TLS) independently; when both are enabled, the client must first establish the TLS handshake and then send the AUTH password. In production, the password should be stored securely (e.g., in Secret Manager) rather than hardcoded in connection strings.
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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Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this PCDOE question test?
Manage Database Solutions — This question tests Manage Database Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The Redis AUTH password. — When AUTH is enabled on a Memorystore for Redis instance, the client must provide the AUTH password in the connection string (e.g., `redis://:password@host:6379`) or via the `AUTH` command after connecting. This password is set during instance creation and is required for authentication before any data commands can be executed. Without it, the Redis server will reject the connection with a `NOAUTH Authentication required` error.
What should I do if I get this PCDOE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This PCDOE 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 PCDOE exam.
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