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Q. What is Session Layer in osi model?
Session Layer: Allows two applications to establish, utilize and disconnect a connection between them known as a session. Gives for name recognition and additional functions like security, which are required to allow applications to communicate over the network.
Presentation Layer: Evaluates the format used to exchange data among networked computers.
Application Layer: Gives Applications with access to network services.
Receipt of Acknowledgment In our GBN protocols an acknowledgment for packet with sequence number will be taken to be accumulative acknowledgment indicating that all packe
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Reliability is the probability of success ; where success is defined as compliance to specified requirements. A system or an item is considered reliable if it performs satisfactori
Categories of address forms: STATIC: In this type the hardware manufacturer gives permanent physical address to every network manufacturer and interface must ensure th
Advantage of IP sec Tunnelling Mode IP Sec tunnelling mode has the following advantages: a.Security : Ts IP sec tunnelling mode secure somewhat but not the best. In a
Question : a) Describe the following core components of a cellular based network: i) Cell ii) MSC iii) HLR & VLR iv) PSTN b) Explain why frequency reuse is consi
Switches operate at layer 2. They enhance bandwidth by decreasing the number of devices sharing the media. They isolate collisions. Like a bridge they forward traffic based upon la
What do mean by tunnel mode? This is a mode of data exchange wherein two communicating computers do not use IPSec themselves. Instead, the gateway that is linking their LANs to
What is Round Trip Time? The duration of time it takes to send a message from one end of a network to the other and back, is known as RTT.
Which NetWare protocol provides link-state routing? Ans) NetWare Link Services Protocol (NLSP) gives link-state routing. SAP (Service Advertisement Protocol) advertises network
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