PCNE Configuring Network Services Practice Question
A company wants to expose an on-premises HTTP server to internet clients through a Global HTTPS Load Balancer using a hybrid connectivity NEG. The on-prem server is reachable via a Cloud VPN tunnel. What must the engineer configure to ensure the load balancer can reach the on-prem endpoint?
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
✓
Create a static route in VPC pointing to the VPN tunnel for the on-prem IP
Hybrid connectivity NEGs require a custom route that directs traffic to the on-prem network via the VPN tunnel. The load balancer's health check source ranges also need routes back. Firewall rules are necessary but not the primary routing requirement.
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 a global TCP proxy load balancer instead
Why it's wrong here
Hybrid NEGs work with HTTPS LB; TCP proxy is not required.
- ✗
Configure a firewall rule allowing health check ranges to the on-prem server
Why it's wrong here
Firewall is needed but not sufficient; routing must be in place first.
- ✓
Create a static route in VPC pointing to the VPN tunnel for the on-prem IP
Why this is correct
A route is required so that packets from the load balancer reach the on-prem server via VPN.
- ✗
Deploy a proxy VM in the VPC to forward traffic to on-prem
Why it's wrong here
Hybrid NEGs are designed to work without a proxy VM.
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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.