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Test: Data Communication in Computers - Class 7 MCQ


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10 Questions MCQ Test Computer Science for Class 7 - Test: Data Communication in Computers

Test: Data Communication in Computers for Class 7 2024 is part of Computer Science for Class 7 preparation. The Test: Data Communication in Computers questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Data Communication in Computers MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Data Communication in Computers below.
Solutions of Test: Data Communication in Computers questions in English are available as part of our Computer Science for Class 7 for Class 7 & Test: Data Communication in Computers solutions in Hindi for Computer Science for Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Test: Data Communication in Computers | 10 questions in 10 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study Computer Science for Class 7 for Class 7 Exam | Download free PDF with solutions
Test: Data Communication in Computers - Question 1

What is the primary purpose of Data Communication?

Detailed Solution for Test: Data Communication in Computers - Question 1
Data Communication involves transmitting coded data between remote terminals and a centralized computer installation or between computer centers over established communication links, making Option B the correct answer.
Test: Data Communication in Computers - Question 2

What type of transmission channel allows data transmission in both directions but only in one direction at any given time?

Detailed Solution for Test: Data Communication in Computers - Question 2
In a Half Duplex channel, data transmission is possible in both directions, but only in one direction at any given time, which makes Option B the correct choice.
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Test: Data Communication in Computers - Question 3

Which of the following is NOT an advantage of a data communication system?

Detailed Solution for Test: Data Communication in Computers - Question 3
Data communication systems enable quick retrieval of information from files, so Option C is incorrect. The other options describe advantages of data communication systems.
Test: Data Communication in Computers - Question 4
How is information transfer speed measured in data communication?
Detailed Solution for Test: Data Communication in Computers - Question 4
Information transfer speed is measured using bit rates and baud rates in data communication, making Option C the correct answer.
Test: Data Communication in Computers - Question 5
In data transmission, which method provides the fastest transmission rate?
Detailed Solution for Test: Data Communication in Computers - Question 5
Fiber optic transmission provides the highest mode of speed in data communication, making Option D the correct choice.
Test: Data Communication in Computers - Question 6
What is the main purpose of a network in the context of computers?
Detailed Solution for Test: Data Communication in Computers - Question 6
The primary purpose of a network is to enable the sharing of files and information between multiple computer systems, so Option C is the correct answer.
Test: Data Communication in Computers - Question 7
Which type of malware is designed to make users think their computer is infected and trick them into purchasing a fake application?
Detailed Solution for Test: Data Communication in Computers - Question 7
Scareware is designed to make users think their computer is infected and trick them into purchasing a fake application, so Option D is the correct choice.
Test: Data Communication in Computers - Question 8
What is the term for a program written to attack the normal operation of a computer and affect its programs?
Detailed Solution for Test: Data Communication in Computers - Question 8
A worm is a program written to attack the normal operation of a computer and affect its programs, making Option B the correct answer.
Test: Data Communication in Computers - Question 9
Which type of cable is used by cable TV companies between the community antenna and user homes?
Detailed Solution for Test: Data Communication in Computers - Question 9
Cable TV companies use coaxial cables between the community antenna and user homes, as mentioned in the text.
Test: Data Communication in Computers - Question 10
What is the primary function of a repeater in a network?
Detailed Solution for Test: Data Communication in Computers - Question 10
The primary function of a repeater in a network is to extend the range of the network, making Option C the correct answer.
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