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WIRELESS COMMUNICATION FUNDAMENTALS

1. Roter is a
(A).Internetworking device
(B).Buffer
(C).Device used in wirelesscommunication
(D).Not an internetworking device


2. HIPERLAN is a standard used for
(A).WLAN
(B).LAN alone
(C).MAN alome
(D).LAN and MAN


3. Fragmentation of data is a function of
(A).Physical layer
(B).Netword layer
(C).Tranport layer
(D).Data link layer


3. IEEE 802.11 standrd for covers the following layers in its functionality when copied to OSI reference model
(A).Network and transport layer
(B).Physical and data link layer
(C).Physical layer and network layer
(D).Network layer session layer


4. In channel access in HIPERLAN-1 standard if the channel is busy of the possible terminal access are:
(A).Prioritization phase
(B).Contention phase
(C). contention and transmission phase
(C). none of these 5. Consider the following statements 1.HIPERLAN-2uses OFDM type of modulation 2.HIPERLAN-2 is suitable for Ad hoc and infrastructure topologies 3.HIPERLAN cannot proviide ATM and IP service 4.HIPERLAN -2 in not suitable for WLAN Which of the above is correct
(A).1 and 2
(B).2 and 3
(C).1 and 4
(D).3 and 4