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Switching via memory
Traditional computers with switching between input and output being doen under direct control of the CPU input and output ports functioned as traditional I/O devices in a traditional operating systems. Aninput port with an arriving packet first signalled the routing processor. The packet was then copied from the input port into processor memory. The routing processor then extract the destination address from the heard looked up the appropriate output port in the forwarding table and the packet to the output buffers. Note that if memory bandwidth is B packets per second can be written into or read from memory them the overall forwarding throughput ( the total rate at which packets are transferred from input ports to output ports ) must be less than B/2.
A UDP header does not have Sequence number and Acknowledgement number fields. Is it an advantage or a disadvantage? Explain your answer in detail. User Datagram Protocol Th
Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para
what is parity checking
What is the different type of networking / internetworking devices? 1. Repeater: Also known as a regenerator, it is an electronic device that operates only at physical layer.
As the system administrator, you type "ppp authentication chap pap secret". Name the authentication method is used first in setting up a session? Ans) the authentication method
Define DNS?
Describe any good security technology A good security technology should be powerful enough to support the features that the administrators need, including rules validation to i
MOSPF MOSPF is multicast extension to OSPF. This protocol is extension of OSPF which is a unicast routing protocol which make MOSPF a combination of unicast and multicast prot
Write the layer on which layer does L2F, PPTP and L2TP operate?
We studied Dijkstra's link-state routing algorithm for computing the unicast paths that are individually the shortest paths from the source to all destinations. The union of these
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