CSSLP Practice Question: Secure Software Deployment Operations And Management
You are evaluating container orchestration security. What is the purpose of a 'Sidecar Container' in a Service Mesh?
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
✓
To intercept and manage network traffic to enforce mTLS and authorization policies.
Sidecars, such as those in Istio or Linkerd, handle security concerns like mTLS, authentication, and logging so the main application code does not have to.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To act as a backup for the main container if it crashes.
Why it's wrong here
This is the role of orchestration replication, not sidecars.
- ✓
To intercept and manage network traffic to enforce mTLS and authorization policies.
Why this is correct
The sidecar pattern allows for transparent security enforcement at the network layer.
- ✗
To provide additional CPU and memory resources to the main container.
Why it's wrong here
Sidecars add overhead, they do not provide additional compute resources.
- ✗
To store persistent data for the main application.
Why it's wrong here
Persistent storage is managed via volumes and claims, not sidecars.
About these practice questions
This CSSLP question is part of Courseiva's 198-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 (ISC)² exam blueprint
This CSSLP practice question is part of Courseiva's free (ISC)² 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 CSSLP exam.