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Q. Categories of Encryption - Decryption ?
Categories of Encryption/Decryption
- Symmetric-key - encryption key (Ke) and the decryption key (Kd) are the same and secret
- Character-level
- Bit-level
- Public Key - encryption key is publicly known; decryption key is kept private
- RSA
Q. What is Aspects of Security? - Security Attack: Any action whichcompromises the security of information owned by an organization. - Security Mechanism: A mechanism th
Enumerate about the Star networks Comments: 1 - If one connection/station fails the other devices aren't affected 2 - If central hub breaks down, the whole network fail
Q. Describe about Cryptography? - Some media cannot be protected from unauthorized reception (or interception) - Encryption involves transforming the original information in
Go Back ( GBN) Go back N ARQ is specific instance of the automatic repeat request protocols in which the sending process continues to send a number of frames specific
Q. What is Virtual LANs? Virtual LANs - LAN (Local area network) configured by software not by physical wiring Virtual LANs - Divides a LAN into logical, in
Next hop to receiver does not relay on source of packet. This phenomenon is known 'Source Independence'. It has various benefits. It gives efficient and fast routing. Packet switch
802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
Q. Describe OSI Routing Architecture? End systems (ESs) as well as intermediate systems (ISs) use routing protocols to distribute (-advertise?) some or all of the informati
Thinnet Characteristics Shorter range (185 meters) as well as smaller capacity Bus topology LAN Connectors and cables include: thin coaxial cable, NICs and BNC-T
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
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