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Q. What is Retransmission timer?
Retransmission timer
- not fixed because paths that IP packets take may differ
- If too short - retransmissions -> waste of bandwidth
- If too large - delay for the application program
RTT = * previous RTT + (1- ?)*current RTT, usually 90 %
Karn's algorithm:
- don't consider the RTT of a retransmitted segment in the calculation of the new RTT
The Address Resolution Protocol (ARP) sends out a broadcast to verify the MAC address from the IP address.
IGRP uses flash updates, poison reverse updates, hold down times, and divide horizon. How often does it broadcast its routing table updates? Ans) 90 seconds
Q. Function of TCP/IP Transport Layer ? TCP/IP Transport Layer - Defines two standard transport protocols UDP and TCP - TCP equipment a dependable data-stream protocol
Determine about the Tree Topology A generalization of the bus topology. The transmission medium is a branching cable with no closed loops. The tree layout begins at a point kno
Q. How is computer networks used in Financial services? Financial services: Today's financial services are totally depended on networks. Application includes credit history
Hardware Sharing network facilitate the sharing devices. For example instead of giving each of 10 employees in department of the internet on modern society is har
Can you describe Session layer in OSI model
State in brief about the Graceful degradation With FDMA or TDMA, a fixed number of users can concurrently access the system. Though, with CDMA, as more user concurrently access
What are the important topologies for networks? BUS topology: In this every computer is directly linked to primary network cable in a single line. Advantages: Inexpensive,
Determine about the Address Translation When a Web site address or URL is typed in the Web browser, as www.bbc.com and not as a series of numbers, it is essential for the serv
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