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What is CRC
The CRC is computed while transmission and appended to output stream as soon as last bit goes out onto wire. If the CRC were in header, it will be necessary to make a pass over frame to compute CRC before transmitting. This would need each byte to be handled twice-once for check summing and one time for transmitting. Using trailer cuts the work in half.
What are the responsibilities of Application Layer? The Application Layer enables the user, whether human or software, to access the network. It gives user interfaces and suppo
Define Bandwidth and Latency? Network performance is calculated in Bandwidth (throughput) and Latency (Delay). Bandwidth of a network is given by the number of bits that can be
What is the major issue with routing by rumor?
Q. Illustrate Keep alive and Time-Waited Timer? Keep alive timer To prevent a long inactive connection between two TCPs - Either client or server crash
Q. What are the basic key functions of data link layer? Ans: Data link layer transfers data in a structured and reliable manner so that the service given by the physical layer
Q. What do you mean by Substitutional Ciphers? Substitutional Ciphers Monoalphabetic Substitution Polyalphabetic Substitution - Transpositional - character
what are the terms CSU, DSU and TSU?
There are many types of servers:- a) File servers b) Database servers c) Transaction servers d) Groupware servers e) Object servers Web servers.
Q. What are the Error Correction Techniques ? Error Correction Error Correction Techniques Retransmission Forward Error Correction Burst Error Corre
Internet Backbone Internet backbone is the physical networks ( usually relying on fiber optic cable ) that carries internet traffic between different networks and i
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