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As the Internet started, the original Classful addressing procedure became a limitation. The IP address space was being terminated because all networks had to select one of three possible sizes. Many addresses were not used.
Two new methods were invented to overcome the limitations, which are as given:
Instead of having three different address classes, allow the division between suffix and prefix to occur on an arbitrary boundary. The classless addressing scheme answers the problem by allowing an ISP to give a prefix. Prefix is 28 bits long.
how does the near/far effects infulence TDMA system?what happen CDMA system? what are countermeasures in TDMA system/
This new model of Client/Server having of thin, portable, "universal" clients those talks to super fat servers. In the easiest form, a web server returns documents when clients ask
Q. Working of TCP - buffers? TCP - buffers Sending & receiving buffers - Processes don't consume data at the same speed Sending site: - White section: unfilled
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
What is IP spoofing and how can it be stopped?
Concept Of Permutation Network In permutation interconnection networks the information replace requires data transfer from input set of nodes to output set of nodes and likely
Unused Reserved This is a 6 bite field reserved for future use.
NETWORK OWNERSHIP: There are two types in this case: 1. Private Network 2. Public Network
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.
What are firewalls? Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who need to steal data or computer viruses that
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