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Q. Explain about Virtual Circuit Switching?
Virtual Circuit Switching
- All packets belong to a message (or) session is preserved.
- Single route is selected between source/destination.
- All packets obtain that route to reach destination.
- It requires a call setup to establish a virtual circuit. (Either permanent or switched type)
- Uses virtual circuit identifier for routing.
VPN Technology For an organization VPN technology uses some main techniques for privacy a.Encryption /Authentication b.Tunnelling c.Fire walls
Q. What is Authentication ? - Verification of sender's identity. - Accomplished through a digital signature, which is based on public key encryption/decryption. - Uses re
Cost Involved in Inter-Processor Communication As the data is assigned to many processors in a parallel computer while implementing a parallel algorithm, the processors might
codefor FLSM
Explain how DHCP work?
Application Layer The application layer provides an interface between application entities and the users computer. This layer offers services to a variety of aspects of d
UPD is a layer 4 Transport protocol. It is connection-less due to it does establish a connection thus the 3 step handshake is not needed, it does NOT execute any flow control or ac
Q. Explain Simple Mail Transfer Protocol? Electronic Mail -Simple Mail Transfer Protocol (SMTP) is used to support email on the Internet -Addressing consists of two pa
Transmission robustness and security Unless properly designed, a wireless LAN might be interference prone and simply eavesdropped. The design of a wireless LAN must allow relia
Q. Show the steps used at sender end by check sum? The sender follows these steps: The data unit is divided into "k" sections, each off "n" bits All sections ar
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