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Q. Describe about Cryptography?
- Some media cannot be protected from unauthorized reception (or interception)
- Encryption involves transforming the original information into an unintelligible form
- Decryption is the process of reversing the encryption process in order to transform the message back into its original form
- Plaintext - original message
- Ciphertext - encrypted form
Q. Explain about line coding? Line Coding Procedure of converting binary data to a digital signal DC Components Residual dc (direct-current) components or
Asynchronous or Statistical Time Division Multiplexing As we have seen synchronous TDM does not guarantee that the full capacity of a link in sued. In fact it is more like
Question: a) Show the shortest form of the following IPv6 address: 2340:0000:0000:000F:7000:119A:A001:0000 b) The IPv6 header includes a Class field and a Flow ID field. Bri
IPv6 packet Format The format of an IPv6 header is shown in figure. Although IPv6 addresses are four times the size of IPv4 address the basic IPv6 header is only twice
Connection Oriented Transport TCP In addition to providing reliable communication transmission control protocols effects errors control flow control and resequencing of
Enumerate about the Traffic policing Traffic policing happens when a flow of data is regulated so that cells (or frames or packets) that exceed a performance level are discarde
Gateway A device linked to multiple physical TCP/IP networks capable of routing or delivering IP packets among them. Router It's a layer 3 device that connects 2 diss
Q. Describe about Packet Switching? Packet Switching - Data are transmitted in separate units - Called Packet - Packets are variable length blocks - The max leng
What is the difference between trigger and rule? Ans) The triggers are known as implicitly by database generated events, whereas stored procedures are known as explicitly by cli
Question 1 How can one set up internet on a PC and test it?? Explain Setting up a new connection Testing internet connection Question 2 What are the rules for wri
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