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
C
Correct answer
Explanation
In a mesh network topology, each of the network node, computer and other devices are interconnected with one another. Every node not only sends its own signals but also relays data from other nodes.
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hosts; routers
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routers; communication lines
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hosts; communication lines
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routers; customers
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hosts; customers
B
Correct answer
Explanation
In a WAN, hosts are connected by a subnet. Subnet comprises communication lines (copper wire, optical fibre, etc.) and switching elements. Switching elements are connected with two or more communication lines. This switching element is known as router. Router selects the outgoing line for data transmission.
A
Correct answer
Explanation
An Internet area network (IAN) is a concept for a communications network that connects voice and data endpoints within a cloud environment over IP, replacing an existing Local Area Network (LAN), Wide Area Network (WAN) and/or Public switched telephone network (PSTN).
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Ethernet
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ARCNET
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Token Ring
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NetWare
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Wi-Fi
D
Correct answer
Explanation
NetWare is a computer network operating system developed by Novell, Inc.
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Media access control address
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Network interface controller
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Firewire
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Fiber Distributed Data Interface
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Bus
B
Correct answer
Explanation
A network interface controller (NIC) is a computer hardware component that connects a computer to a computer network.
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asynchronous
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synchronous
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simplex
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none of these
B
Correct answer
Explanation
Synchronous is one type of communication in which the parties communicating are live or present in space and time.
D
Correct answer
Explanation
This type of topology keeps track of unique electronic address for each node, and manages the flow of information. Hence, it is more reliable than any other topology.
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Data transfer
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Connection establishment
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Termination
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None of these
B
Correct answer
Explanation
This is the first phase in communication in which before any signal can be transmitted, an end to end circuit must be established.
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Serial communication
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Cross talk
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Parallel communication
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None of these
C
Correct answer
Explanation
Parallel communication is type of communication in which data is transmitted byte-by-byte.
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sender
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receiver
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channel
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both (a) and (b)
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Content coupling
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Message coupling
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Common coupling
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External coupling
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Data coupling
B
Correct answer
Explanation
Message coupling is the loosest type of coupling. It can be achieved by state decentralization (as in objects) and component communication is done via parameters or message passing.
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Cellular and radio networks
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Cable based
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Computer network based
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Public policy
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Multimedia content and network publishing
C
Correct answer
Explanation
These providers are often dialup linkages of lower bandwidth.
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Finance
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Banking
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Ticketing
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Shopping
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All of the above
E
Correct answer
Explanation
In all the above sectors, the WAP is used globally.
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block
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demand
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single
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bus
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flyby
B
Correct answer
Explanation
This DMA transfer mode is the one in which DMA transfers at the fastest possible rate as long as the I/O device asserts its DMA request.
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Proxy server
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Firewall
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Router
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Bridge
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None of the above
B
Correct answer
Explanation
A firewall is a small program that helps protect your computer and its contents from outsiders on the internet or network. A firewall prevents unauthorised traffic to and from your computer.