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Google PCA Practice Question: Managing and Provisioning a Solution Infrastructure

An organization wants to manage DNS records for a domain they own (e.g., example.com) and use Google Cloud for authoritative DNS. They also need to resolve internal hostnames for resources within their VPC. Which Cloud DNS configuration should they use?

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

Create a public managed zone for example.com and a private managed zone for internal VPC resources

Cloud DNS public zones manage public DNS records for internet-facing domains. Cloud DNS private zones are used for internal DNS resolution within VPCs. The correct approach is to create a public zone for example.com and a private zone for internal hostnames attached to the VPC.

Answer analysis

Option-by-option breakdown

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

  • Create a single public managed zone and use DNS peering for internal resolution

    Why it's wrong here

    DNS peering forwards queries between zones, but a public zone alone cannot resolve internal hostnames within a VPC.

  • Create a single private managed zone for both external and internal DNS resolution

    Why it's wrong here

    A private zone is only accessible within the VPC; external queries would not be answered.

  • Use Google Groups DNS to manage both public and private records

    Why it's wrong here

    There is no such service as Google Groups DNS. Cloud DNS is the only DNS service.

  • Create a public managed zone for example.com and a private managed zone for internal VPC resources

    Why this is correct

    Public zone handles external DNS queries; private zone attached to the VPC handles internal resolution.

Visual reference

Client Recursive Resolver Root DNS (13 root servers) TLD DNS (.com, .org, …) Authoritative example.com query IP addr answer

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This PCA 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 PCA exam.