KCSA Overview OF Cloud Native Security Practice Question
When discussing cloud native security, what does 'ephemeral infrastructure' refer to, and why is it beneficial for security?
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
✓
Short-lived workloads and nodes that are frequently destroyed and recreated, reducing an attacker's persistence window
Ephemeral infrastructure means workloads and nodes are short-lived and frequently replaced, limiting the persistence window for attackers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Network connections that automatically drop after one second
Why it's wrong here
This describes aggressive timeout configurations, not ephemeral infrastructure.
- ✓
Short-lived workloads and nodes that are frequently destroyed and recreated, reducing an attacker's persistence window
Why this is correct
Ephemeral resources prevent long-term attacker dwell time because compromised instances are quickly destroyed.
- ✗
Virtual machines stored in volatile RAM without disk storage
Why it's wrong here
Ephemeral refers to lifecycle duration, not storage media.
- ✗
Infrastructure that is permanent and never updated to prevent downtime
Why it's wrong here
Permanent infrastructure is the opposite of ephemeral.
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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 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.