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What are proxy servers and how do they protect computer networks?
Proxy servers primarily stop external users who identifying the IP addresses of an internal network. Without information of the correct IP address, even the physical location of the network can't be identified. Proxy servers can make a network virtually invisible to external users.
Explain how does PPP use LCP for link control?
Network Data Storage 1. What is the Small Computer System Interface Architecture 2. Describe the various Fibre Channel standards. 3. What is the difficulties in building
Explain about star topology This topology, obviously, needs a great deal of cabling. This design gives an excellent platform for reconfiguration and trouble-shooting. Changes t
show ipx servers is the command that shows the SAP table
Electronic Cheques Another mechanism for Internet payment is electronic cheques. With electronic cheques, the payer (either an individual consumer or a business) instructs his
Circuit switching is a term used in communication where the communicating nodes will be connected through a dedicated channel before any communication may take place. The methodolo
how does PPTP express the data?
What is CRC and Checksum CRC (Cyclic redudancy check) CRC, is the most powerful of the redundancy checking methods, is based on binary division. Checksum Checksum
Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency
Q. Explain about Congestion control? Congestion control Open-loop congestion control - prevent congestion before it happens retransmission policy - Ret
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