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The science and art of manipulating messages in order to create them secure is known as cryptography.....
Two types are:-
Symmetric key cryptography and Asymmetric key cryptography
1) symmetric key cryptography similar key is used for encryption and decryption eg :DES IDEA AES
2) Asymmetric key: public key is used for both encryption and decryption eg: RSA Difere Hellman
The Transport layer implements reliable data transport services. The various functions of Transport Layer are listed below The transport layer is meant for transmitting the data
NETWORK ANALYZERS: A network analyzer also known network monitor or a network sniffer is used to calculate the performance of or debug a network. It may report statistics s
Q. Show the Communication between Switches? Communication between Switches - Must know which station belongs to which VLAN as well as membership of stations connected to
What are different ways of securing a computer network? There are lots of ways to do this. Install reliable and updated anti-virus program on all computers. Make sure firewalls
QUESTION a) List the seven layers of the ISO-OSI model and briefly describe the role of each layer b) Describe the functions of the following intermediate systems- Rep
PHYSICAL ADDRESSING IN A WAN: The physical addressing in a WAN is same as in LAN in the following way: The data is send in packets equivalent to frames. Every pack
The application for this assignment is somewhat arti?cial. Normally, an application would not interact directly with IP. Instead, it would create a UDP or TCP socket and interact w
Q. Define the Network Security? The Internet and Web technology presents enormous promise for e-commerce. Web now is used to handle important business assets that became the
Discuss about the Hypertext The hypertext allows for the integration of text, graphics, audio and video on a webpate. This can make it very easy to browse and very exciting to
What is NIC and WAN? NIC is short for Network Interface Card. This is a peripheral card that is joined to a PC in order to connect to a network. Each NIC has its own MAC addres
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