PCNE Practice Question: Managing, Monitoring, and Optimising Network Operations
A company is using a global external HTTP(S) load balancer to serve traffic from multiple regions. They notice high egress costs for traffic served to users in Asia. What change could reduce costs?
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 a regional external load balancer in Asia and enable Cloud CDN
A regional load balancer can be used for each region where users are located, avoiding the cost of global load balancing, and Cloud CDN can cache content closer to users, reducing origin egress.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Switch to a regional internal load balancer
Why it's wrong here
Internal LB is for private traffic, not internet-facing.
- ✗
Enable VPC Flow Logs to analyze traffic
Why it's wrong here
Monitoring does not reduce costs.
- ✓
Use a regional external load balancer in Asia and enable Cloud CDN
Why this is correct
Correct: Regional LB reduces global routing costs, and CDN caches content, reducing egress from origin.
- ✗
Increase the number of backend instances in Asia
Why it's wrong here
More instances may increase costs.
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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.