PCNE Practice Question: Designing, Planning, and Prototyping a GCP Network
A developer needs to create a subnet for GKE pods that will be used by a cluster. They need to specify a secondary IP range for pods. What is the purpose of the 'purpose' field when creating a subnet?
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
✓
It indicates the subnet is used for GKE pods or services
The purpose field determines the subnet's usage; for GKE pods, you set purpose to 'PRIVATE_RFC_1918' or use a secondary range with specific purpose.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It enables private Google access
Why it's wrong here
Private Google access is a separate subnet setting.
- ✓
It indicates the subnet is used for GKE pods or services
Why this is correct
When creating a subnet for GKE, the purpose can be set to e.g., 'PRIVATE_RFC_1918' or a secondary range purpose.
- ✗
It defines whether the subnet is auto or custom
Why it's wrong here
The purpose field is separate from auto/custom mode.
- ✗
It sets the region for the subnet
Why it's wrong here
Region is set separately.
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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.