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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.
Determine the rate of communication line The dog could carry 21 gigabytes or 168 gigabits. A speed of 18 km/hour that is equal to 0.005 km/sec. The time to travel the distance
Determine the term- Cyberspace The conceptual or virtual area where pages, data, images, and all the rest are stored. It is the area from where requests are accepted and ful
MIME The Multipurpose Internet Mail Extensions While the message headers described in are satisfactory for sending ordinary ASCII text they are not sufficiently Reich for
Sequence Number After the bytes have been numbered TCP assigns a sequence number to each segment that is being sent. These sequence number for each segment is the numb
List some most useful advantages of Token Ring. Here are Token ring's most useful advantages: a. It depends excellent throughput under high-load conditions. b. Token Ring
Q. Explain about Congestion control? Congestion control Open-loop congestion control - prevent congestion before it happens retransmission policy - Ret
Reverse Address Resolution Protocol - RARP is ARP's counterpart, but it resolves IP addresses to MAC addresses typically on diskless workstations.
What is Stop-and-Wait Protocol? In Stop and wait protocol, sender sends single frame, waits unless it receives confirmation from the receiver (okay to go ahead), and then sends
Determine about the Complete and proper security Complete and proper security configuration and administration is indeed a complex issue. One should think carefully about the
Cut-Through is the best mode of switching. Store and Forward reads in the whole frame, confirms the frame is valid, and then forwards the frame onto the wire. Cut-Through only chec
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