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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
modern technology in world of 21 century
Can you define the concept of Repeaters, Hubs, Bridges, Switches and Routers?
Q. Show Example on Check Sum? Data: 10101001 00111001 Computing Checksum: 10101001 00111001 --------------- Sum 11100010 Receiver Side: 10101
Define different OSPF packet types?
what is compurter network and types, topology, communication media
Describe different router types in OSPF?
What is a DNS resource record? A resource record is an entry in a name server's database. There are various types of resource records used, containing name-to-address resolutio
Controlling and monitoring access to the Intranet Digital certificates provide excellent means of controlling and monitoring access to the Intranets. The certificate itself act
What are local variables? Local varaiables are those which are declared within a block of code like methods. Local variables should be initialised before accessing them.
Consider the procedure described for estimating average delay di. Suppose that u=0.1. Let r1-t1 be the most recent sample delay, let r2 -t2 be the next most recent sample delay
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