Q. Decryption and encryption of data are the responsibility of which of the following layer ?

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Q. In which circuit switching, delivery of data is delayed because data must be stored and retrieved from RAM ?

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Q. In which Routing Method do all the routers have a common database?

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Q. Page Shift Keying (PSK) Method is used to modulate digital signal at 9600 bps using 16 level. Find the line signals and speed (i.e. modulation rate).

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Q. The station to hub distance in which it is 2000 metres.

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Q. Mobile IP provides two basic functions.

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Q. Check sum used along with each packet computes the sum of the data, where data is treated as a sequence of

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Q. For the transmission of the signal, Bluetooth wireless technology uses

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Q. What is the routing algorithm used by RIP and IGRP ?

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Q. X.25 is …………… Network.

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Q. Which of the following IP address class is a multicast address ?

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Q. Which layer of OSI reference model uses the ICMP (Internet Control Message Protocol)?

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Q. What is the size (in terms of bits) of Header length field in IPV4 header ?

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Q. Radio signals generally propagate according to the following mechanisms:

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Q. Match the following with link quality measurement and handoff initiation :

(a) Networked-Controlled Handoff(NCHO)            (i) MS connect to BS
(b) Mobile-Assisted Handoff(MAHO)           (ii) Process via channel the target BS
(c) Forward Handoff                            (iii) First Generation Analog Cellular System
(d) Hard Handoff                                 (iv) Second Generation Digital Cellular System

      (a)   (b)   (c)  (d)

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Q. If the period of a signal is 1000 ms, then what is its frequency in kilohertz ?

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Q. Hub is a term used with

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Q. Which of the following network access standard disassembler is used for connection station to a packet switched network?

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Q. A station in a network, forward incoming packets by placing them on its shortest output queue. What routing algorithm is being used?

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Q. Start and stop bits are used in serial communications for

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