KCNA Container Orchestration Practice Question
Which THREE of the following are true about the Container Runtime Interface (CRI)? (Choose 3)
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
✓
CRI allows kubelet to communicate with different container runtimes
CRI is a plugin interface that enables kubelet to use different container runtimes without recompiling. containerd and CRI-O are CRI-compliant runtimes. Docker was deprecated as a Kubernetes runtime and is not CRI-native; it uses dockershim.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Docker natively implements the CRI
Why it's wrong here
Docker does not implement CRI natively; Kubernetes used dockershim as a bridge.
- ✗
CRI is part of the Open Container Initiative (OCI)
Why it's wrong here
CRI is a Kubernetes project, not part of OCI.
- ✓
CRI allows kubelet to communicate with different container runtimes
Why this is correct
CRI defines the API between kubelet and container runtime.
- ✓
containerd implements the CRI
Why this is correct
containerd has a built-in CRI plugin.
- ✓
CRI-O is a lightweight runtime designed for Kubernetes
Why this is correct
CRI-O is a CRI-compliant runtime specifically built for Kubernetes.
Go deeper
Related to this question
Learn chapter
Cloud Native Architecture and Concepts
Key term
Container Runtime Interface
The Container Runtime Interface (CRI) is a standardized plugin protocol that allows Kubernetes to work with different container runtimes without needing to change its core code.
Key term
ReplicaSet and Replication
A ReplicaSet ensures a specified number of identical pod instances are running at all times in Kubernetes, using replication to maintain availability and stability.
About these practice questions
This KCNA question is part of Courseiva's 833-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 by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.