Computer Science Engineering Test Preparations On Networking Part 2

Test Preparation on Computer Science Engineering Test Preparations On Networking Part 2

1.

Which of the following is used for modulation and demodulation?

1modem
2protocols
3gateway
4multiplexer

2.

Which of the following is not a disadvantage of wireless LAN?

1Slower data transmission
2higher error rate
3interference of transmissions from different computers
4All of the above

3.

Which of the following technique is used for Time-To-Line (TTL)?

1a technique used in best-effort delivery system to avoid endlessly looping packets.
2a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
3One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size.
4All of the above

4.

Communication network is

1one or more conductors that serve as a common connection for a related group of devices
2a continuous frequency capable of being modulated or impressed with a second signal
3the condition with two or more stations attempt to use the same channel at the same time
4a collection of interconnected functional units that provides a data communications service among stations attached to the network

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