PCNE Implementing VPC Instances Practice Question
A company uses VPC Service Controls with a service perimeter that includes Project A. They want to allow an external identity from Project B (outside the perimeter) to access a Cloud Storage bucket in Project A, but only during business hours. Which VPC Service Controls feature should they use?
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
✓
Access levels with time constraint and an ingress rule
VPC Service Controls use access levels (e.g., based on IP, time) and ingress rules to allow traffic from outside the perimeter. Ingress rules define which identities and resources can access perimeters.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Access levels with time constraint and an ingress rule
Why this is correct
Correct. Access levels can define time conditions, and ingress rules allow specified traffic from outside the perimeter.
- ✗
Egress rules with IP whitelisting
Why it's wrong here
Egress rules control outbound data, not inbound access from outside.
- ✗
Cloud Armor geoblocking
Why it's wrong here
Cloud Armor is for HTTP(S) load balancing, not for controlling API access to Cloud Storage.
- ✗
Private Google Access
Why it's wrong here
Private Google Access does not control access across perimeters.
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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.