Q. Which of the following are Data Link Layer standard?

1. Ethernet
2. HSSI
3. Frame Relay
4. 10 – Base T
5. Token Ring

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Q. In case of Bus/Tree topology signal balancing issue is overcome by

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Q. Match the following :

List-I
(i) Ethernet
(ii) Token Ring
(iii) Cut-through switch
(iv) Spanning tree

List-I
(a) Deterministic
(b) Utilize the full wire speed
(c) Prevent looping
(d) Checking valid address

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Q. The single stage network is also called

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Q. Which technology is sometime referred to as wireless cable?

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Q. Another name of IEEE 802.11a is …………………

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Q. The unlicensed National Information Infrastructure band operates at the …………. frequency.

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Q. In order that a code is ‘t’ error correcting, the minimum Hamming distance should be:

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Q. The throughput of pure ALOHA is given by:

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Q. The Fiber Distributed Data Interface uses:

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Q. To employ multi-access in GSM, users are given different:

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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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