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The Data link layer performs the following: Responsible for physically passing data from single node to another. Translates messages from the upper layers into data frames and adds customized headers having the Hardware destination and source address.
A network in which there is multiple network links among computers to provide multiple paths for data to travel.
QUESTION (a) Briefly describe three security requirements of an agent (b) List four threats that may be caused by malicious hosts to mobile agents (c) Describe the forwar
Line Layer The line layer provides the synchronization multiplexer, multiplexing and automatic protection switching for the layer . primary concerned with the reliable trans
Network Topologies Topology is study of the arrangement or mapping of the elements links nodes etc, of a network especially the physical and logical inter connections bet
The entire idea of ISDN is to digitize the telephone network to allow the transmission of video, audio and text over existing telephone lines. The reason of the ISDN is to provide
What is a Database Server? With a database server, the client passes SQL requests as messages to the database server. The results of every SQL command are returned over the net
Ask questiXYZ, is Pakistani company which is selling toys in all the major cities of Pakistan having 50 outlets in different cities. The company has the revenue of 10000000/- PKR p
Satellite Radio Channels A communication satellite links two or more earth microwave transmitter receiver, know as ground stations. The satellite receives transmission on
Unguided Media: Wireless - A Wireless communication transporting electromagnetic waves without a physical conductor Wireless Propagation Methods - Ground - radio
HEADERS AND FRAME FORMAT: LAN technology standards describe frame format for every technology. All contemporary standards use the following basic format. a) Frame header b
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