Q. X.25 protocol consists of:

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Q. GSM/CDMA systems:

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Q. Usually information security in a network is achieved by:

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Q. When compared with analog cellular systems, an advantage of digital TDMA cellular system is that:

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Q. After sending a message, the sender should not be able to, at a later date, deny having sent the message, is referred to as:

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Q. The device which connects dissimilar LANs of different topologies using different sets of communication protocols so that information can flow from one to another is called:

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Q. The channel capacity of a band-limited Gaussian channel is given by:

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Q. Transmission of N signals, each band limited to fm Hz by TDM, requires a minimum band-width of:

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Q. If a code is ‘t’ error detecting, the minimum hamming distance should be equal to:

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Q. The throughput of slotted ALOHA is given by:

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Q. Congestion control is done by:

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Q. Assertion (A): Twisted pairs are widely used as transmission medium.
Reasoning (R): Twisted pairs have adequate performance and low cost.

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Q. An example of a non-adaptive routing algorithm is:

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Q. IP address in B class is given by:

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Q. A high performance switching and multiplexing technology that utilizes fixed length packets to carry different types of traffic is:

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Q. A conventional LAN bridge specifies only the functions of OSI:

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Q. If a code is t-error correcting, the minimum Hamming distance is equal to:

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Q. The ATM cells are ................ bytes long.

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Q. For slotted ALOHA, the maximum channel utilization is :

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Q. For a channel of 3 KHz bandwidth and signal to noise ratio of 30 dB, the maximum data rate is:

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