KCNA Container Orchestration Practice Question
Which of the following is a key benefit of container orchestration compared to running containers manually?
⚠ Common exam trap
CNCF exams test that orchestration's primary benefits are automation, resilience, and declarative management, not raw speed or memory savings. Avoid choosing options that claim performance or resource improvements.
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
✓
Automatic scaling and self-healing
Container orchestration platforms like Kubernetes provide automatic scaling and self-healing capabilities that are not available when running containers manually. Self-healing automatically restarts failed containers, reschedules them when nodes fail, and replaces containers that fail health checks, while scaling adjusts the number of replicas based on CPU/memory metrics or custom metrics. Manual container management requires operators to monitor and intervene for each failure or load change, making orchestration essential for production-grade reliability and elasticity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Containers use less memory
Why it's wrong here
Orchestration does not affect container memory usage.
- ✓
Automatic scaling and self-healing
Why this is correct
Orchestration platforms like Kubernetes provide automatic scaling and self-healing capabilities.
- ✗
Orchestration eliminates the need for container images
Why it's wrong here
Container images are still required; orchestration manages the lifecycle of containers.
- ✗
Containers run faster when orchestrated
Why it's wrong here
Orchestration does not inherently make containers run faster; it manages them.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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