PCNE Configuring Network Services Practice Question
A team is using Traffic Director with Envoy sidecars. They want to enforce mutual TLS (mTLS) between services. Which configuration must be enabled?
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
✓
Enable mTLS in the Traffic Director mesh configuration
Traffic Director supports mTLS through the Mesh TLS configuration, which enforces TLS mutual authentication between sidecars.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure SSL certificates on each Envoy sidecar manually
Why it's wrong here
Manual configuration is not necessary; Traffic Director manages it.
- ✗
Use Cloud NAT to hide internal IPs
Why it's wrong here
Cloud NAT is for outbound connectivity, not mTLS.
- ✓
Enable mTLS in the Traffic Director mesh configuration
Why this is correct
Correct. Mesh TLS settings in Traffic Director enforce mTLS.
- ✗
Enable Cloud Armor on the service
Why it's wrong here
Cloud Armor is a WAF, not for mTLS.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNE 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 PCNE exam.