PCNE Configuring Network Services Practice Question
A company wants to use Traffic Director to implement fault injection for testing service resilience. They want to inject delays and errors into a percentage of requests. Which two configurations are required? (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
✓
Configure a fault injection policy in Traffic Director
Traffic Director supports fault injection policies, which require a traffic splitting rule to apply the policy to a portion of traffic, and the fault injection filter config in Envoy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable Cloud Armor on the load balancer
Why it's wrong here
Cloud Armor is for security, not fault injection.
- ✓
Configure a fault injection policy in Traffic Director
Why this is correct
Fault injection policy defines delay and error percentages.
- ✗
Create a new backend service with different instance group
Why it's wrong here
Fault injection does not require new backends.
- ✗
Configure a health check for the fault injection service
Why it's wrong here
Health checks are not required for fault injection.
- ✓
Apply a traffic splitting rule to direct a percentage of traffic to the fault injection policy
Why this is correct
Traffic splitting determines which requests get the fault.
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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.