Q. The disadvantages of mobile communication are

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Q. ETSI stands for

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Q. GSM (Global System for Mobile Communication) is a _______ digital mobile telephones standard using a combination Time Division Multiple Access (TDMA) and FDMA (Frequency Division Multiple Access).

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Q. If either of the communicating device can ask for disconnection by sending DISCONNECT REQUEST TPDU to the other, and immediately disconnect without waiting for acknowledgement is called ...................

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Q. As we go from long-wave radio towards visible light, the waves behave more and more like ................. and less and less like ..................

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Q. Which IEEE 802 standard does not provide for a collision-free protocol?

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Q. In switched 802.3 LANS, each card forms its own ................... independents of the others.

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Q. 802.3 base band systems use ........................ encoding.

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Q. In 802.3, each frame starts with a ................... of 7 bytes.

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Q. In 802.3, the high order bit of the destination address is a ‘0’ for ................. addresses.

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Q. In 802.3, the address consisting of all 1 bits is reserved for .................

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Q. The .................... standard describes the upper part of the data link layer.

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Q. .................... protocol is widely used on LAN in the MAC sub layer.

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Q. In binary countdown protocol each station address bits are ..................

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Q. Multiple users share a common channel is called .......................

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Q. ................... system is used for ground based radio broadcasting.

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Q. Which IEEE 802 standard provides for a collision-free protocol?

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Q. The first collision free protocol is ...................

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Q. Military vehicles on a battlefield with no existing infrastructure will deploy ............... network.

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Q. What is the type of network in which the topology change from time to time?

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