Computer Knowledge
Computer Networks
2,095 Questions
Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.
Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure
Computer Networks Questions
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Distance
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Resistance
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Speed
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Bandwidth
D
Correct answer
Explanation
This feature possesses large carrying capacity of fibre optic cables.
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Repeater
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Network Interface Card
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Modem
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None of these
B
Correct answer
Explanation
It is a device used in computer to communicate over a network .
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Repeater
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Bridge
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Router
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Gateway
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None of the above
B
Correct answer
Explanation
Ethernet and token bus are protocols at the data link layer and a bridge is used when two networks have different data link layers but the same network layer.
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Bridge
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Repeater
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Router
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Gateway
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End system
B
Correct answer
Explanation
It is used at the physical layer and just forwards bits from one network to another.
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Repeater
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Bridge
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Router
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Gateway
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None of the above
C
Correct answer
Explanation
Router is needed when two networks use the same transport layer but have different network layers. A router can convert token bus frames to the form required by X.25 n/w.
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X.21
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RS-232-C
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RS-449
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Both (2) and (3)
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None of the above
A
Correct answer
Explanation
X.21 is a digital signaling interface.
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A calculating device
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A networking device
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A connector
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A compiler
B
Correct answer
Explanation
It is used to connect one computer to its neighbor or other hosts in a network.
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data communication
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voice communication
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fax communication
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All of the above
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_
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Broadcasting
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Propagation
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Unicasting
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Aloha
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Bandwidth
A
Correct answer
Explanation
The simultaneous transmission of data to a number of stations is called broadcasting.
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Simplex
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Half duplex
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Multiplex
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Duplex
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Switch
D
Correct answer
Explanation
The duplex communication mode supports data in both directions at the same time.
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200kbit/s
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2000kbit/s
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100kbit/s
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200mbit/s
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1Gbit/s
A
Correct answer
Explanation
3G telecommunication networks support services that provide an information transfer rate of at least 200 kbit/s. However, many services advertised as 3G provide higher speed than the minimum technical requirements for a 3G service.
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Star topology
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Bus topology
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Ring topology
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Tree topology
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Switch
A
Correct answer
Explanation
This type of topology is a network design in which each node is directly connected to a central network hub or concentrator.
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Port number
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Subnetting
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Sliding window protocol
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ICMP
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UDP
B
Correct answer
Explanation
This term in networking refers to the practice of dividing a network into two or more networks.
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Socket
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Association
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Half-association
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Conversation
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Well-known
D
Correct answer
Explanation
This term refers to the communication link betweeen two processes in Berkeley Software Distribution (BSD).
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secure
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scalable
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dedicated
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decentralised
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None of these
B
Correct answer
Explanation
Scalable is the system that can start with just a few nodes, but can easily expand to thousands of nodes. It is easy to make larger and more powerful.