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802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
Classification of Access Networks Access networks can loosely be classified into three categories 1. Residential Access 2. Company Access 3. Wireless Access
Advantages of Bridges By forwarding frames only to the segment where host resides a bridge server the following purpose. a.Unwanted traffic as well as network c
What is Forward Error Correction and data words Forward error correction It is the process in which the receiver tries to guess the message by using redundant bits. Da
Question: a) Describe the following two approaches used towards wireless frequency regulation. i. Regulated Band ii. Unlicensed Band b) An antenna is an electrical c
Question: a) One of the most important duties of a system administrator is to protect the information that is stored on network servers. In the same context, describe both Ma
Q. Show the Refraction and Reflection in Fiber-optic cable ? - Refraction often takes place when light bends as it passes from one medium to another less dense medium - Wh
Multi Tasking Environment Multi tasking exploits parallelism by: 1) Concurrently using the multiple functional units 2) Pipelining functional units are pipe line toget
Q. Illustrate the Model for Network Security? - A message is transferred from one party (Principal) to another. - A logical information channel is founded between the t
Difference among the communication and transmission? Transmission is a physical movement of information and concern issues as bit polarity, synchronization, clock etc. Commu
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