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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.
AILURES AND BATHTUB CURVE The life of a component system can be grouped into three different phases typical curve depicting these three is called the bathtub curve due to its s
Primary Function Core network typically providing the followings functionality 1.Aggregation : the highest level of aggregation in a service provider networks. The
Name the OSI layer which performs code conversion, code formatting and encryption Ans) Presentation layer performs code conversion, code formatting and encryption
Error Detection- Check Sum The Checksum generator are subdivides the data unit into equal segments of "n" bits (usually 16) These segments are added utilizing one's c
Receive Window This field defines the size of the window in bytes that the other party must maintain. Note that the length of this field 16 bits which means
Each link layer process will have two connections: one "up" to the appropriate IP layer process, and one "sideways" to the link layer process on the simulated machine at the other
Question: (a) With the help of a diagram, describe a typical DNS system. (b) Using signal sequence or state transition diagrams, illustrate the following scenarios: i.
Features 1. Simple to install; 2. Simple to configure; 3. Multiple applications from one user can implement; 4. Multiple users can each use PVM concurrently; 5. C, C++, and
Q. Illustrate Stop-and-Wait Automatic Repeat request? - Simplest flow as well as error control mechanism - The sending device keeps a duplicate copy of the last frame transm
In case of any new event switch do broadcast, after that always do Unicast.
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