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What is CRC
The CRC is computed while transmission and appended to output stream as soon as last bit goes out onto wire. If the CRC were in header, it will be necessary to make a pass over frame to compute CRC before transmitting. This would need each byte to be handled twice-once for check summing and one time for transmitting. Using trailer cuts the work in half.
A fairly renowned approach in this area is OpenMP, a recently developed industry standard for shared memory programming on architectures with uniform memory access characteristics.
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What is a Counter A software code that indicates how many times a site has been visited. It gets automatically updated and is usually represented by a small rectangle with n
DNS Message There are the only two kinds of DNS message DNS query and reply messages. Further mote both query and reply message have the same format as shown in figure.
Explain the term - global corporate-wide network It would be highly interesting to note that more than 70 per cent of all security related problems start from within the organi
Give some examples of private network addresses. 10.0.0.0 with a subnet mask of 255.0.0.0 172.16.0.0 with subnet mask of 255.240.0.0 192.168.0.0 with subnet mask of 255.2
The following information was obtained from a host computer: 00:05:17.176507 74.125.228.54.1270 > 64.254.128.66.25: S 2688560409:2688560409(0) win 16384 (DF) (ttl 46, id 2096
What is Round Trip Time? The duration of time it takes to send a message from one end of a network to the other and back, is known as RTT.
briefly explain how firewalls protect networks
Some of the ?elds of IP and ICMP datagrams will be ?xed, some will be settable by the application, and others will computed according to the situation. You must set all ?elds of th
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