Class - 12 CBSE Computer Science — Assertion Reason Type Questions
Computer Networks
Assertion. The bus and star topologies are widely used topologies.
Reason. Bus topology is the simplest topology and star topology is more robust comparatively.
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Computer Networks
Assertion. MODEM stands for modulator-demodulator.
Reason. It is a computer hardware device that converts data from a digital format to analog and vice versa.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
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Computer Networks
Assertion. A modem is a communication device that works on the principle of converting digital data to analog data and vice versa.
Reason. Modulation is a process of converting digital data to analog form and Demodulation is a process of converting analog data to digital form.
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Computer Networks
Assertion. A hub can also act as an amplifier at times.
Reason. An active hub is capable of amplifying the signal during transmission while a passive hub merely lets the signal pass through it.
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Computer Networks
Assertion. A repeater is not like an amplifier.
Reason. A repeater regenerates a signal thereby removing noise.
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Computer Networks
Assertion. A router and a bridge are similar.
Reason. A router works like a bridge but can handle different protocols unlike bridge.
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Computer Networks
Assertion. Hubs and switches can be replaced.
Reason. While a hub is a broadcast device, a switch is a unicast device.
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Internet
Assertion.
WWW
and the Internet are not the same.Reason.
WWW
is a set of programs, standards and protocols that allows propagation and navigation of multimedia and hypermedia documents.- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
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Internet
Assertion. Every document linked to the web has a URL.
Reason. A location on a net server has a unique address called URL (Uniform Resource Locator).
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
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Internet
Assertion. A website is a group of related web pages hosted on a web server.
Reason. A website is a collection of some hyperlinks.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
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Showing 81 - 90 of 201 Questions