- A
Use TLS 1.2 or higher for all data in transit
PCI DSS requires strong transport encryption; TLS 1.2+ is the standard.
- B
Enable Cloud CDN
Why wrong: Cloud CDN is for content delivery, not encryption.
- C
Use Cloud NAT
Why wrong: Cloud NAT is for outbound internet connectivity, not encryption.
- D
Enable VPC Flow Logs
Why wrong: VPC Flow Logs are for network monitoring, not encryption.
- E
Use CMEK for encryption of cardholder data at rest
PCI DSS requires encryption of stored cardholder data; CMEK allows customer-managed keys.
Question 898 of 985
PCSE Supporting Compliance Requirements Practice Question
This PCSE practice question tests your understanding of supporting compliance requirements. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 implementing PCI DSS compliance on Google Cloud. They need to ensure that cardholder data is encrypted in transit and at rest. Which TWO encryption controls are required by PCI DSS?
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
✓
Use TLS 1.2 or higher for all data in transit
PCI DSS requires strong encryption for data in transit (TLS 1.2 or higher) and for data at rest (e.g., using encryption keys managed by the customer or Google). CMEK ensures customer-managed keys for data at rest.
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.
- ✓
Use TLS 1.2 or higher for all data in transit
- ✗
Enable Cloud CDN
Why it's wrong here
Cloud CDN is for content delivery, not encryption.
- ✗
Use Cloud NAT
Why it's wrong here
Cloud NAT is for outbound internet connectivity, not encryption.
- ✗
Enable VPC Flow Logs
Why it's wrong here
VPC Flow Logs are for network monitoring, not encryption.
- ✓
Use CMEK for encryption of cardholder data at rest
Why this is correct
PCI DSS requires encryption of stored cardholder data; CMEK allows customer-managed keys.
Related concept
Static NAT maps one inside address to one outside address.
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 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
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 PCSE NAT questions on configuration and troubleshooting.
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Supporting Compliance Requirements — study guide chapter
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FAQ
Questions learners often ask
What does this PCSE question test?
Supporting Compliance Requirements — This question tests Supporting Compliance Requirements — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use TLS 1.2 or higher for all data in transit — PCI DSS requires strong encryption for data in transit (TLS 1.2 or higher) and for data at rest (e.g., using encryption keys managed by the customer or Google). CMEK ensures customer-managed keys for data at rest.
What should I do if I get this PCSE 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 PCSE NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jul 4, 2026
This PCSE 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 PCSE exam.
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