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Data units at different layers of the TCP/ IP protocol suite
The data unit prepared at the application layer is known a message, at the transport layer the data unit build is known either a segment or an user data packet, at the network layer the data unit build is named the data packet, at the data link layer the datagram is attached in to a frame and finally transferred as signals along the transmission path.
What do you understand by the term encryption? Also describe the public key cryptography Encryption: Encryption is a method of converting plain text into cipher text. Using thi
Consider a computer system with three users: Alice, Bob and Cindy. Alice owns the file alicerc, and Bob and Cindy can read it. Cindy can read and write the file bobrc, which Bob ow
Size of Option field of an ip datagram is 20 bytes. What is the value of HLEN? What is the value in binary?
Scenario: A network with individual hosts (really, virtual machines) can run HTTP (web) servers that are available to the outside. (Here, available means the ability to read and wr
Problem (a) Name the various layers of the OSI model. (b) Show, by means of a diagram, how the TCP/IP reference model is different from the OSI-7 reference model? Why is
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- Alice, Bob and Charlie have a secret key a=3, b=4, c=5, in that order. - They would like to find a common secret key using Diffie-Hellan key exchange protocol (with g=2, p=5).
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