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What are the different technologies involved in establishing WAN links?
Analog connections - using conventional telephone lines; Digital connections - using digital-grade telephone lines; switched connections - using multiple sets of links among sender and receiver to move data.
What is packet filter? Packet filter is a standard router up to with some extra functionality. The extra functionality permits every incoming or outgoing packet to be inspected
Describe the term - stateful implies The term stateful implies that the firewall is wakeful and is capable of remembering the state of each session of packet exchange across it
Define Character Stuffing? In byte stuffing (or character stuffing), a particular byte is added to the data section of the frame when there is a character with the same pattern
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
Describe unbound transmission media. Unbound transmission media are the media of transmitting data without using any cables. These are not bounded by any physical geography. Ex
Explain the term- congestion The average queue size over the last cycle and the current cycle is calculated. This value is the threshold. By averaging over two cycles instead o
What are some drawbacks of implementing a ring topology? In case one workstation on the network varies a malfunction, it can bring down the whole network. Another drawback is t
Electronic Cheques Another mechanism for Internet payment is electronic cheques. With electronic cheques, the payer (either an individual consumer or a business) instructs his
What is WAN? A wide area network is defines a LAN of LANs. WANs connect LANs that might be on opposite sides of a building, across the country or around the world. WANS
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