Back to the 2026 paper

Module 2: Basics of Robot Operating System (ROS)

20262m

Which ROS mechanism is more appropriate when a client requests a specific operation and expects a response?

(i) Topic
(ii) Service
(iii) Parameter
(iv) Package

Worked SolutionAI Assisted

Answer: (ii) Service

A ROS service is a synchronous request/response call: the client sends a request and waits for the reply. Topics are one-way publish/subscribe streams.

Similar questions

Free AppAndroid App

Coursify Android App

Generate AI courses, take quick quizzes between classes, and master complex engineering concepts on the go.