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Virtual Private Network (VPN) adds the features of both public and private networks. It is fixed to single organization and needs public network for connectivity.
These connections are sometimes known tunnels and connect sites. Every site sees tunnel as point-to-point link. There is no access for other clients of public networks.
GUARANTEEING ABSOLUTE PRIVACY:
In addition to restricting data packets, VPN machines use encryption to sure absolute privacy. Even if an outside does manage to retain a copy of the data packet the outside will be unable to interpret the message.
Internet Service Provider (ISP) This supper fast network spanning the world from one major metropolitan area to another is provided by a handful of national internet
DISTANCE-VECTOR ROUTING: It is easy to implement. Packet switch modifies its own routing table first. It is used in RIP. LINK-STATE ALGORITHM: It is ve
Q. Define Name Space in domain name system? - All names assigned to machines on an internet - Must be unique; either flat or hierarchical - Flat name space - name is assi
what is the best time to use brouter rather than router? what are advantages of using brouter over router?
restore the scrambled bits to their original order
What is Forward Error Correction and data words Forward error correction It is the process in which the receiver tries to guess the message by using redundant bits. Da
Header length This field specifies the length of the TCP header in 32 bit words. This information allows the receiver to know the beginning of the data area becau
The Data link layer performs the following: Responsible for physically passing data from single node to another. Translates messages from the upper layers into data frames and adds
Efficiency of a data communications system depends on three fundamental characteristics - Delivery: The system should deliver data to the correct destination. Data should be r
It is one of the models based on PRAM. In this model, the processors access the memory locations concurrently for reading as well as writing operations. In the algorithm, which use
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