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Q. Show the Responsibilities of session layer?
Session layer: Main functions of this layer are to establish, synchronize and maintain the interaction between two communication hosts. It ensures that once a session is established it should be closed gracefully. It also checks and establishes connections between hosts of two different users. Session layer also decides whether both users can send and receive data at the same time or whether only one host can send and the other can receive. Responsibilities of session layer are:
• Sessions and sub sessions: This layer divides a session into sub session for avoiding retransmission of whole message by adding checkpoint feature.
• Synchronization: This layer decides the order in which data needs to be passed to transport layer.
• Dialog control: this layer also decides which user application transmits data and at what point of time and whether communication is simplex, full duplex or half duplex.
• Session closure: this layer makes sure that session between hosts is closed gracefully.
Q. Describe the Graphic Accelerators? A Graphic Accelerator is actually a chip as a matter of fact most significant chip in your video card. The Graphic Accelerator is essentia
Q. A. Which gates are called Universal Gates? Why? B. State and prove any one of the DeMorgen's Laws. Show that these theorems can be extended up to any number of variables.
The decimal equivalent of Binary number 10101 is ? Ans. 1x2 4 + 0x2 3 +1x2 2 +0x2 1 + 1x2 0 = 16 + 0 + 4 + 0 + 1 = 21.
explain different types of congestion in network layer?
Determine about the Intranet server The success or usage of the Intranet server is measured by the number of operations it handles per Unit time. The selection of a good server
projections
Six machines H1, H2, ..., H6 are linked by two Ethernet switches SW1 and SW2 as given below. Both switches have four ports drawn. The port numbers are as indicated. Suppose the two
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write a program that counts the number of occurrences of the string in the n-th Padovan string P(n)
In which page replacement policies Balady’s anomaly occurs? FIFO that is First in First Out.
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