PCNE Configuring Network Services Practice Question
A company is using Traffic Director with Envoy sidecars to manage traffic between microservices. They want to inject faults to test service resilience. Which Traffic Director feature should they use?
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
✓
Fault injection
Fault injection is a feature of Traffic Director that allows injecting delays or abort errors into requests for testing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Traffic splitting
Why it's wrong here
Traffic splitting routes percentages of traffic to different versions, not fault injection.
- ✓
Fault injection
Why this is correct
Correct: fault injection allows testing resilience by injecting delays or errors.
- ✗
Circuit breakers
Why it's wrong here
Circuit breakers protect services from cascading failures but do not inject faults.
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mTLS
Why it's wrong here
mTLS secures communication but does not inject faults.
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JA
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.