Question 27 of 1,000
mediumDrag & DropObjective-mapped

VPC Private Google Access via Cloud VPN

This PDE practice question tests your understanding of pde exam topics. 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.

Drag and drop the steps to configure a VPC network with private Google access for on-premises connectivity using Cloud VPN into the correct order.

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 VPC network with subnets, then enable Private Google Access on the subnets, then create Cloud VPN gateway and VPN tunnel, then configure the on-premises VPN device.

Private Google Access allows on-premises hosts to reach Google APIs via VPN without public IPs.

Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.

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 VPC network with subnets, then enable Private Google Access on the subnets, then create Cloud VPN gateway and VPN tunnel, then configure the on-premises VPN device.

    Why this is correct

    This is the correct order because you must first have a VPC network and subnets, then enable Private Google Access on the subnets to allow on-premises hosts to reach Google APIs. After that, you set up the Cloud VPN gateway and tunnel to establish connectivity, and finally configure the on-premises device to complete the VPN connection.

    Related concept

    CIDR notation defines the prefix length.

  • Create VPC network with subnets, then create Cloud VPN gateway and VPN tunnel, then enable Private Google Access on the subnets, then configure the on-premises VPN device.

    Why it's wrong here

    This is incorrect because enabling Private Google Access after setting up the VPN could cause a temporary lack of access for on-premises hosts. Private Google Access should be enabled before the VPN is used to ensure seamless connectivity to Google APIs.

  • Enable Private Google Access on the subnets, then create VPC network with subnets, then create Cloud VPN gateway and VPN tunnel, then configure the on-premises VPN device.

    Why it's wrong here

    This is incorrect because you cannot enable Private Google Access on subnets that do not yet exist. The VPC network and subnets must be created first before Private Google Access can be enabled.

  • Create Cloud VPN gateway and VPN tunnel, then create VPC network with subnets, then enable Private Google Access on the subnets, then configure the on-premises VPN device.

    Why it's wrong here

    This is incorrect because a Cloud VPN gateway requires an existing VPC network to attach to. Creating the VPN gateway before the VPC is not possible, and enabling Private Google Access must happen after the subnet creation.

Common exam traps

Common exam trap: usable hosts are not the same as total addresses

Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.

Detailed technical explanation

How to think about this question

Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.

KKey Concepts to Remember

  • CIDR notation defines the prefix length.
  • Block size helps identify subnet boundaries.
  • Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
  • The required host count determines the smallest suitable subnet.

TExam Day Tips

  • Write the block size before choosing the subnet.
  • Check whether the question asks for hosts, subnets or a specific address range.
  • Do not confuse /24, /25, /26 and /27 host counts.

Key takeaway

Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.

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.

Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PDE subnetting questions on CIDR, address ranges, and subnet selection.

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FAQ

Questions learners often ask

What does this PDE question test?

CIDR notation defines the prefix length.

What is the correct answer to this question?

The correct answer is: Create VPC network with subnets, then enable Private Google Access on the subnets, then create Cloud VPN gateway and VPN tunnel, then configure the on-premises VPN device. — Private Google Access allows on-premises hosts to reach Google APIs via VPN without public IPs.

What should I do if I get this PDE question wrong?

Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PDE subnetting questions on CIDR, address ranges, and subnet selection.

What is the key concept behind this question?

CIDR notation defines the prefix length.

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Last reviewed: Jun 11, 2026

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This PDE 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 PDE exam.