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COLLISION:The receiver can get simultaneous requests, which gives in collision at receivers and both service lost and in this way no transmitter accepts reservations and both use retry and back off. The receiver can receive nearly spaced requests. It chooses one of them and then the selected transmitter sends packet and the transmitter not chosen uses retries and back off.
Question 1 a) Provide three advantages of using optical fiber. b) Distinguish between "Direct Sequence Modulation" and "Frequency Hopping" c) Decribe the purpose of using "
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a) Calculate the CRC for the frame below: Frame: 1101011011 Generator: 10011 Message after appending 4 zero bits: 11010110110000 b) OSI refers to a system in which any
Size of Option field of an ip datagram is 20 bytes. What is the value of HLEN? What is the value in binary?
(a) Cost allocation mechanisms are important when it comes to establishing other aspects of inter-firm compensations and how these are transferred to the users. There are two pri
802.11 WIRELESS LANs AND CSMA/CA: IEEE 802.11 is standard wireless LAN that needs radio signals at 2.4GHz. Its speed is 11Mbps. The older computers use radio signals at data
QUESTION: a) Explain four issues that are generally addressed in the Needs Analysis phase in the building-block approach to network design. b) Sketch a typical hybrid star-b
on LAN,where are IP datagrams transported?
How to check Network working
Question: (a) State the strong law of large numbers. (b) Data have been collected on response times (in minutes) at a fire station. The data are 2:7 1:8 0:8 1:4 1:2 (i
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