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Encryption/decryption using by SSL
Once a session is established, the SSL generates a session key using public-key encryption to exchange information between the client and server. This key is used to encrypt the transaction for both request as well as the response. It would be extremely difficult for the attacker to get into the system since each transaction uses a different session key. Hence, even if the attacker succeeds in cracking the code of a transaction, he cannot use the same key every time for cracking and will have to spend an enormous amount of time as he did for decrypting the first key.
Briefly write functionalities of different OSI layers? The OSI Reference Model includes seven layers. Basic functionality of each of them is as follows: 1. Physical Layer:
Multiplexing and De multiplexing Another critical set of services that are provided by the transport layer is that of application multiplexing and de multiplexing. This featu
Challenge Handshake Authentication Protocols (CHAP) CHAP as its an implies implements a form of authentication that requires a challenge and a response. A CHAP authenticator
Ethernet Addressing Every station on the network must have a unique physical address Offered by a six-byte physical address encoded on the network interface card (NIC)
QUESTION a) The aim of a computer network is to increase efficiency and reduce costs. Explain how networks of computers achieve the above. b) Describe the star topology. Su
A communication protocol is an agreement which specifies a common language two computers use to exchange messages. For instance, a protocol denotes the exact format and meaning of
What are the five major technologies that can be used to create Client/Server applications? Database Servers Groupware TP Monitors Distributed Objects Intranets.
Explain use of perimeter area?
State the uses of groupware With the use of groupware, users can easily do most of the office related management work, which otherwise would be extremely difficult. For instanc
Explain Persistence timer? To deal with the zero-size windows What if a receiver advertises that the window size is 0 (by sending ACK) and this ACK is lost? - A
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