In Kubernetes, what is the most common built-in mechanism for service discovery that provides a stable DNS name for a set of pods?

Environment variables injected at pod creation

The container runtime's internal network

Which of the following is a primary function of a service mesh?

Providing a user interface for application developers

Storing application logs in a central database

Handling inter-service communication with features like retries, timeouts, and mutual TLS

Managing container image builds

An organization exposes a set of REST APIs to external partners. They need to enforce rate limiting, authenticate API keys, and route requests to different backend services based on the URL path. Which component should they place at the edge of their network?

A Kubernetes Service of type LoadBalancer

A company exposes a set of internal microservices to external partners. They need to authenticate requests using OAuth2, transform the request/response format (e.g., from JSON to XML), and monitor API usage. Which component should they place in front of the microservices?

A Kubernetes Service of type LoadBalancer

A Kubernetes Ingress controller

Kubernetes and Cloud Native Associate (KCNA)

Domain 3Objective 1

Application Delivery KCNA Practice Questions (Page 6)

Part of the Cloud Native Application Delivery domain, which accounts for 16% of the KCNA exam. Linux Foundation does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–10 in this domain), expect 2–3 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

8concepts

16%of the exam

Questions 26–30

26foundation · easy
In Kubernetes, what is the most common built-in mechanism for service discovery that provides a stable DNS name for a set of pods?
Select an answer first
27foundation · easy
Which of the following is a primary function of a service mesh?
Select an answer first
28foundation · easy
Which progressive delivery technique involves running two identical environments and switching all traffic from the old version to the new version at once?
Select an answer first
29application · medium
An organization exposes a set of REST APIs to external partners. They need to enforce rate limiting, authenticate API keys, and route requests to different backend services based on the URL path. Which component should they place at the edge of their network?
Select an answer first
30application · medium
A company exposes a set of internal microservices to external partners. They need to authenticate requests using OAuth2, transform the request/response format (e.g., from JSON to XML), and monitor API usage. Which component should they place in front of the microservices?
Select an answer first

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