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User: meghalikalyankar.kgiet

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Posts by meghalikalyankar.kgiet

<prev • 94 results • page 1 of 10 • next >
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Answer: A: Explain Mobile agent.
... **Mobile Agent** 1. A mobile agent is an executing program that can migrate, at times of its own choosing, from machine to machine in a heterogeneous network. 2. On each machine, the mobile agent interacts with stationary service agents and other resources to accomplish its task. Mobile Agents ar ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: Explain Architecture of 802.11.
... **IEEE 802.11 Architecture** 1. The smallest building block of a wireless LAN is a basic service set (BSS), which consists of some number of stations executing the same MAC protocol and competing for access to the same shared wireless medium. 2. A BSS may isolated or it may connect to a backbone d ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: What are the characteristics of SIM?
... 1. The SIM is the entity that contains the identity of the subscriber. When placed in a Mobile Equipment (ME), together they become a Mobile Station (MS) which may then register onto a GSM network. 2. The primary function of the SIM in conjunction with a GSM network is to authenticate the validity ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: Compare 802.11 and 802.15.
... ![enter image description here][1] [1]: https://i.imgur.com/mEk2CeO.png ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: Frequency reuse concept in cellular communication.
... 1. Cellular phone networks use cellular frequency reuse. In the cellular reuse concept, frequencies allocated to the service are reused in a regular pattern of areas, called "cells", each covered by one base station. 2. In mobile-telephone nets these cells are usually hexagonal. To ensure that the m ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: Discuss the PHY frame format of an IEEE 802.11 using the spread spectrum techniq
... **Physical-Layer Architecture** The physical layer is divided into two sub-layers: the Physical Layer Convergence Procedure (PLCP) sub-layer and the Physical Medium Dependent (PMD) sub-layer. The PLCP Figure is the glue between the frames of the MAC and the radio transmissions in the air. It adds i ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: Explain how Mobile terminated call works detailing the role of HLR and VLR.
... **Mobile terminated call (MTC)** 1. If the subscriber receives the call, he is involved in a mobile terminated call (MTC). Then, the mobile subscriber is the called party. 2. In this case, all entities cooperate to direct an incoming call to the mobile subscriber. 3. First of all, only the home l ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: Describe the call initiation and call termination procedure in GSM system.
... **Call Initiation Procedure** How does the network know where the subscribers are? 1. The radio network consists of a large number of BTSs. Each of these is given an identity. 2. The BTSs are grouped in Location Areas which also are given an identity. 3. Each MSC/VLR (Mobile Services Switching Ce ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: How the agent can be discovering using Mobile IP? Give the overlay of agent adve
... **Agent Discovery** A mobile node has to find a foreign agent when it moves away from its home network. To solve this problem, mobile IP describes two methods: agent advertisement and agent solicitation. **Agent advertisement** For this method, foreign agents and home agents advertise their presen ...
written 6 months ago by meghalikalyankar.kgiet20
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Answer: A: What is the relationship between the Base station and mobile switching centre? D
... **Relationship between the Base station and mobile switching centre** 1. A mobile switching center (MSC) is the centerpiece of a network switching subsystem (NSS). The MSC is mostly associated with communications switching functions, such as call set-up, release, and routing. However, it also perf ...
written 6 months ago by meghalikalyankar.kgiet20

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