- A
Consolidate resources to a single region
Moving all resources to one region eliminates cross-region egress costs entirely.
- B
Use Cloud CDN to cache static content
Cloud CDN serves content from edge caches, reducing the amount of data fetched from the origin region, thus lowering egress costs.
- C
Use Cloud Interconnect to connect to on-premises
Why wrong: Cloud Interconnect reduces egress costs for traffic to on-premises, not for traffic between regions.
- D
Use a VPN connection to on-premises
Why wrong: VPN still uses public internet egress; costs are the same as regular internet egress.
- E
Use VPC Network Peering within the same VPC network
Why wrong: Peering within the same VPC network does not incur costs, but it does not reduce inter-region egress because it is not cross-region.
PCDOE Managing Google Cloud costs Practice Question
This PCDOE practice question tests your understanding of managing google cloud costs. 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 company is moving large amounts of data between regions. Which two actions can reduce network egress costs? (Choose two.)
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
Consolidate resources to a single region
Options B and C are correct. Cloud CDN reduces egress from origin by serving cached content from edge locations. Consolidating resources to a single region eliminates cross-region egress. Options A, D, and E do not directly reduce inter-region egress costs: VPN uses public internet, same-region VPC peering is free but does not reduce cross-region egress, and Cloud Interconnect mainly reduces egress to on-premises.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Consolidate resources to a single region
Why this is correct
Moving all resources to one region eliminates cross-region egress costs entirely.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
Use Cloud CDN to cache static content
Why this is correct
Cloud CDN serves content from edge caches, reducing the amount of data fetched from the origin region, thus lowering egress costs.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Use Cloud Interconnect to connect to on-premises
Why it's wrong here
Cloud Interconnect reduces egress costs for traffic to on-premises, not for traffic between regions.
- ✗
Use a VPN connection to on-premises
Why it's wrong here
VPN still uses public internet egress; costs are the same as regular internet egress.
- ✗
Use VPC Network Peering within the same VPC network
Why it's wrong here
Peering within the same VPC network does not incur costs, but it does not reduce inter-region egress because it is not cross-region.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCDOE NAT questions on configuration and troubleshooting.
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Managing Google Cloud costs — study guide chapter
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FAQ
Questions learners often ask
What does this PCDOE question test?
Managing Google Cloud costs — This question tests Managing Google Cloud costs — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Consolidate resources to a single region — Options B and C are correct. Cloud CDN reduces egress from origin by serving cached content from edge locations. Consolidating resources to a single region eliminates cross-region egress. Options A, D, and E do not directly reduce inter-region egress costs: VPN uses public internet, same-region VPC peering is free but does not reduce cross-region egress, and Cloud Interconnect mainly reduces egress to on-premises.
What should I do if I get this PCDOE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCDOE NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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Last reviewed: Jun 24, 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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