KCNA Cloud Native Architecture Practice Question
Which THREE of the following are benefits of using a service mesh? (Choose 3.)
⚠ Common exam trap
CNCF often tests the misconception that a service mesh is a general-purpose tool for all infrastructure concerns, leading candidates to incorrectly select options like database management or code compilation, when in fact the service mesh is narrowly focused on network-level traffic management, security, and observability.
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
✓
Security
A service mesh, such as Istio or Linkerd, offloads cross-cutting concerns from application code into a dedicated infrastructure layer. Security is a core benefit because the service mesh can enforce mutual TLS (mTLS) between all service-to-service communications, providing encryption, identity verification, and fine-grained access policies without modifying application code.
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Related to this question
Learn chapter
Kubernetes Overview and Core Components
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.