Data Communication — Class 12 MCQs with Answers
Class 12 CBSE Computer Science · Chapter 14
30 practice questions · 30 Medium · Updated
Practise the most important Class 12 CBSE Computer Science questions from Chapter 14, "Data Communication". You get 3 timed quizzes made from 30 NCERT-based MCQs, with answers and explanations. The questions are split into 30 Medium. Warm up on the basics, then move on to the exam-level questions that set top scorers in CBSE Board exams apart.
To score well in "Data Communication", focus on logic, syntax and computational thinking. Each MCQ here is timed and uses exam-style marking (+4 correct, −1 wrong, 0 skipped). This trains you to stay accurate under time pressure, as real papers need. Every question has a short explanation, so a wrong answer becomes a quick lesson. It is the fastest way to fix gaps before a test.
Use this chapter for focused revision. Start with the Easy set to check your basics on Data Communication, then move to Medium to practise applying them. Your accuracy, streaks and XP save automatically. This chapter also adds to your overall Class 12 Computer Science mastery score. 2 sample questions are solved in full below, with the answer and a worked explanation. Sign in free to start practising.
Data Communication — important questions & MCQs with answers (Class 12 Computer Science)
2 solved questions from this chapter's difficulty levels, each with its answer and explanation. The other 28 are timed and scored when you sign in.
- Q1Medium
The five components of data communication are:
A.Bandwidth, bit rate, latency, jitter and lossB.Sender, receiver, hub, switch and routerC.Input, output, storage, processing and controlD.Sender, receiver, message, communication medium and protocols✓ CorrectAnswer: D. Sender, receiver, message, communication medium and protocols
Explanation: The five aspects are the sender, the receiver, the message, the communication medium and the protocols followed during communication.
- Q2Medium
In data communication, the transmission medium is also known as the:
A.PacketB.Channel✓ CorrectC.ProtocolD.NodeAnswer: B. Channel
Explanation: The transmission medium is also called the channel, and its capacity is the maximum traffic it can carry.
Start this chapter free
You have 2 solved above. Sign in with Google (no card needed). You get 1 Easy + 1 Medium quiz on every chapter during your 30-day trial. After that, you keep 1 Easy quiz on every chapter, free for good.
This chapter has 30 questions (30 Medium), with timed scoring and instant feedback. The rest unlock with the ₹999/year plan.
Start this chapter free →Data Communication — FAQs
What does Class 12 Computer Science Chapter 14 (Data Communication) cover on XamBaaz?+
It has 30 NCERT-based MCQs on "Data Communication": 30 Medium. Together they make 3 timed quizzes, and you never get the same set twice. Every question has an instant explanation. They help you prepare for CBSE Board exams.
Are these "Data Communication" questions free to practise?+
Yes. Sign in with Google to practise "Data Communication" free. Full unlimited access is ₹999/year on a launch offer until 1 December 2026. No chapter is charged separately.
How should I revise "Data Communication" for the exam?+
Start with the Easy quiz to check your basics, then try Medium to practise applying them. There are 3 timed quizzes on this chapter, so you can come back for a fresh set instead of one you have seen. Read each explanation, retry the questions you miss, and track your accuracy until it stays high.
Are these "Data Communication" MCQs available with answers?+
Yes. 2 sample questions are shown here in full, each with the correct option and a step-by-step "Why" explanation. Sign in free with Google to start practising, with instant scoring.
Is there negative marking in the "Data Communication" quizzes?+
Yes. The timed quizzes use exam-style marking: +4 for a right answer, −1 for a wrong one and 0 for a skip. MHT-CET and CBSE board papers have no negative marking. Our mocks for those are scored their way.
What are the important questions from Data Communication (Class 12 Computer Science)?+
This page shows 2 solved important MCQs with answers and explanations; all 30 questions on the chapter are available as timed quizzes once you sign in.
Is there an online quiz for Data Communication?+
Yes — Class 12 Computer Science Data Communication has timed online quizzes at Medium levels, with instant scoring and a worked explanation on every question. The first quiz on the chapter is free.