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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.
Can you describe the concept of DHCP?
Checksum This 16 bits field contain the checksum. The calculation of the checksum for TCP follows the same procedure as the described for UDP. However the inclusion
Transition Phases A PPP connection goes through phases which can be shown in a transition phase . Dead: In the dead phase the link is not being used. There is no ac
Delivering message through LAN: We have to devise method for delivering message through LAN phase to single, specific destination device. Sending device uses a hardware addres
Company seldom uses a single router to connect its entire network for two purpose. Because the router must transmit every packet, the processor in a provided router is insuff
What are short, long and medium-term scheduling? Long term scheduler verifies which programs are admitted to the system for processing. It controls the degree of multiprogrammi
Why it is necessary to have layering in a network? A computer network is a very complex system. It becomes very difficult to execute as a single entity. The layered approach di
Three layers are called upper layers a) Application Layer - 7 b) Presentation Layer - 6 c) Session Layer - 5
Which form of PPP error detection on Cisco routers monitors data dropped on a link? Ans) The Quality protocol monitors data dropped on a link. Magic Number avoids frame looping
State the methods to keep the attackers at bay Another best methods to keep the attackers at bay is known as network address translator or NAT. The philosophy behind the design
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