KCSA Kubernetes Threat Model Practice Question
An administrator notices that a compromised Pod is attempting to access the cloud provider metadata service to retrieve IAM role credentials. Which native Kubernetes resource is best suited to block this specific attack vector at the network layer?
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
✓
NetworkPolicy
NetworkPolicies can be configured to block egress traffic from specific pods to the link-local IP address of cloud provider metadata services (169.254.169.254).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ResourceQuota
Why it's wrong here
ResourceQuota limits consumption of compute resources, not network destinations.
- ✓
NetworkPolicy
Why this is correct
A NetworkPolicy can restrict egress traffic to prevent pods from reaching the cloud metadata IP address 169.254.169.254.
- ✗
ValidatingWebhookConfiguration
Why it's wrong here
Validating webhooks inspect API requests, not active pod network data paths.
- ✗
SecurityContext
Why it's wrong here
SecurityContext configures runtime parameters like runAsUser or capabilities, but does not inherently block specific IP routing.
About these practice questions
Courseiva writes every KCSA question from scratch — 319 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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 KCSA 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 KCSA exam.