Class 9 Computer Science · Chapter 3 · Test 1
Excercse Test
( Mcqs and 10 Shorts question
19 questions · 20 min · 39 marks
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Sample questions
The first 5 of 19. Try each one, then tap to see the answer.
Question 1
The primary objective of computer networks is:
- AIncrease computational power
- BEnable resource sharing and data communication
- CEnhance graphic capabilities
- DImprove software development
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Answer: B
Computer networks enable resource sharing and data communication.
Question 2
Which device is used to connect multiple networks and direct data packets between them?
- ASwitch
- BHub
- CRouter
- DModem
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Answer: C
A router connects multiple networks and directs data packets between them.
Question 3
Which layer of the OSI model is responsible for node-to-node data transfer and error detection?
- APhysical Layer
- BData Link Layer
- CNetwork Layer
- DTransport Layer
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Answer: B
The Data Link Layer provides node-to-node data transfer and error detection.
Question 4
The function of the Domain Name System DNS is to:
- AAssign IP addresses dynamically
- BTranslate domain names to IP addresses
- CSecure data communication
- DMonitor network traffic
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Answer: B
DNS translates domain names into their corresponding IP addresses.
Question 5
Which method of data transmission uses a dedicated communication path?
- APacket Switching
- BCircuit Switching
- CFull-Duplex
- DHalf-Duplex
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Answer: B
Circuit switching establishes a dedicated communication path between sender and receiver.
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