PCNE Configuring Network Services Practice Question
Which load balancer type preserves the client source IP address and can be used for TCP/UDP traffic on a specific port, passing traffic through to backend instances without proxy overhead?
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
✓
Regional External TCP/UDP Network Load Balancer
The Regional External TCP/UDP Network Load Balancer is a pass-through load balancer that preserves client IP and handles TCP/UDP traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Regional Internal TCP/UDP Load Balancer
Why it's wrong here
Internal LB preserves client IP but only for internal traffic.
- ✗
Global External TCP Proxy Load Balancer
Why it's wrong here
TCP Proxy LB terminates the connection and uses a proxy, so source IP is not preserved.
- ✓
Regional External TCP/UDP Network Load Balancer
Why this is correct
Correct: pass-through LB preserves client IP.
- ✗
Global External HTTPS Load Balancer
Why it's wrong here
HTTPS LB terminates the connection and does not preserve source IP.
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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.