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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Q. Data security threats include

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Q. The cellular frequency reuse factor for the cluster size N is

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Q. Handoff is the mechanism that

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Q. All of the following are examples of real security and privacy risks except

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Q. Identify the incorrect statement:

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Q. The number of bits required for an IPV6 address is

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Q. A comparison of frequency division and time division multiplexing system shows that

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Q. If carrier modulated by a digital bit stream, has one one of the possible phase of 0, 90, 180 and 270 degrees, then modulation called

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Q. Consider the following statement :

(i) The bandwidth of the A.M., wave depends on the band width of the modulating signal.
(ii) The bandwidth of the A.M., wave depends on the modulation index.
(iii) The bandwidth of the F.M, wave for all practical purpose depends on the amplitude of the carrier.

Of these statements the correct statements are

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Q. A smart modem can dial, hangup and answer incoming calls automatically. Can you tell who provides the appropriate instructions to the modem for this purpose ?

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