Google PCA Manage and provision cloud infrastructure Practice Question
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 are true about Google Cloud VPC networks? (Select exactly 2.)
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 and can span zones.
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.
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.
✗
Each VPC network is regional in scope.
Why it's wrong here
VPC networks are global, spanning all regions.
✗
By default, no firewall rules are created in a new VPC.
Subnets are regional resources and can span zones.
Why this is correct
Subnets are regional and each subnet can have IP ranges across zones.
Related concept
Read the scenario before looking for a memorised answer.
✓
VPC Peering allows private RFC 1918 connectivity across VPCs.
Why this is correct
VPC Peering enables private IP connectivity between VPCs.
Related concept
Read the scenario before looking for a memorised answer.
✗
VPC Peering supports transitive routing.
Why it's wrong here
Transitive routing is not supported; peering is non-transitive.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse VPC scope with subnet scope, assuming VPCs are regional like in AWS, but Google Cloud VPCs are global, and they may also mistakenly believe VPC Peering supports transitive routing, which it explicitly does not.
Detailed technical explanation
How to think about this question
Under the hood, Google Cloud VPCs use a global software-defined network (SDN) that allows subnets to be defined regionally but the VPC itself spans all regions. This enables resources in different zones of the same region to share a subnet, leveraging Google's Jupiter network fabric for low-latency communication. In a real-world scenario, deploying a multi-zone application (e.g., a web server in us-central1-a and a database in us-central1-b) on the same subnet simplifies IP address management and avoids cross-subnet latency.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Manage and provision cloud infrastructure — This question tests Manage and provision cloud infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Subnets are regional resources and can span zones. — 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.
What should I do if I get this PCA 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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Question Discussion
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