This PCA practice question tests your understanding of manage and provision cloud infrastructure. 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.
Which TWO statements about Google Cloud VPC networks are true? (Choose two.)
Subnets are regional resources.
Subnets are regional and can span zones.
VPC networks are global resources.
VPC networks span all regions.
VPC networks are project-level resources.
Why wrong: VPCs are global, but they belong to a project.
Firewall rules are regional.
Why wrong: Firewall rules are global.
Subnets are zonal resources.
Why wrong: Subnets are regional, not zonal.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Subnets are regional resources.
Subnets in Google Cloud VPC are regional resources. When you create a subnet, you specify a region and a CIDR block, and the subnet spans all zones within that region. This allows resources in different zones of the same region to use the same subnet without additional configuration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Subnets are regional resources.
Why this is correct
Subnets are regional and can span zones.
Related concept
Read the scenario before looking for a memorised answer.
VPC networks are global resources.
Why this is correct
VPC networks span all regions.
Related concept
Read the scenario before looking for a memorised answer.
VPC networks are project-level resources.
Why it's wrong here
VPCs are global, but they belong to a project.
Firewall rules are regional.
Why it's wrong here
Firewall rules are global.
Subnets are zonal resources.
Why it's wrong here
Subnets are regional, not zonal.
Common exam traps
The trap here is that candidates often confuse subnets as zonal resources (like in AWS or on-premises networking) and firewall rules as regional, but Google Cloud VPC treats subnets as regional and firewall rules as global, which is a key differentiator tested on the PCA exam.
Detailed technical explanation
Under the hood, Google Cloud VPC uses a global software-defined network (SDN) that abstracts the underlying physical topology. Subnets are defined with a regional scope, and IP addresses are allocated from the subnet's CIDR block across all zones in that region. This design enables seamless VM migration between zones within the same region without reconfiguring IP addresses, and it simplifies network architecture for multi-zone deployments.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
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FAQ
Manage and provision cloud infrastructure — This question tests Manage and provision cloud infrastructure — Read the scenario before looking for a memorised answer..
The correct answer is: Subnets are regional resources. — Subnets in Google Cloud VPC are regional resources. When you create a subnet, you specify a region and a CIDR block, and the subnet spans all zones within that region. This allows resources in different zones of the same region to use the same subnet without additional configuration.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO statements are true about Google Cloud VPC networks? (Select exactly 2.)
mediumWhy C: Option C is correct because Google Cloud VPC subnets are regional resources that can span multiple zones within the same region. This allows resources in different zones to use the same subnet without requiring additional routing or VPN configuration, providing high availability and fault tolerance within a region.
Last reviewed: Jun 11, 2026
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