ICA Securing Workloads Practice Question
A security team requires that all traffic to the 'payments' service must originate from a specific IP range (10.0.0.0/24). How can this be achieved?
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 an AuthorizationPolicy with 'source.ipBlocks: ["10.0.0.0/24"]'.
The AuthorizationPolicy supports 'source.ipBlocks' to whitelist or blacklist specific CIDR ranges.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure the Gateway to filter by IP.
Why it's wrong here
While possible at the gateway, the question asks for the service level, which requires AuthorizationPolicy.
- ✗
Use a ServiceEntry to restrict traffic.
Why it's wrong here
ServiceEntry is for egress traffic discovery, not ingress authorization.
- ✓
Create an AuthorizationPolicy with 'source.ipBlocks: ["10.0.0.0/24"]'.
Why this is correct
ipBlocks is the correct field for CIDR-based authorization.
- ✗
Create a PeerAuthentication policy with 'ipBlocks'.
Why it's wrong here
PeerAuthentication does not support IP filtering.
Visual reference
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CNCF / Linux Foundation exam blueprint
This ICA practice question is part of Courseiva's free CNCF / Linux Foundation 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 ICA exam.