KCNA Cloud Native Architecture Practice Question
Which service mesh provides built-in support for multi-cluster and multi-cloud deployments?
⚠ Common exam trap
CNCF often tests the misconception that all service meshes have equal multi-cluster support, leading candidates to pick Linkerd for its simplicity or Consul for its multi-datacenter reputation, but Istio is the only one with built-in, comprehensive multi-cloud and multi-cluster capabilities as a core feature.
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
✓
Istio
Istio is correct because it provides native support for multi-cluster and multi-cloud deployments through its mesh federation capabilities, including features like multi-primary and primary-remote cluster models, as well as east-west gateways for cross-cluster traffic. It leverages Envoy proxies and a unified control plane to enable service discovery, traffic management, and security across clusters, making it the only option among the listed that offers built-in, production-ready multi-cluster support.
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Cloud Native Architecture and Concepts
Key term
Service Mesh
A service mesh is a dedicated infrastructure layer that manages communication between microservices, handling tasks like service discovery, load balancing, encryption, and observability without requiring changes to application code.
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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.