Answer:
The correct option to the following question is option (D) may also be called TCP/IP gateways.
Explanation:
Commonly, Internet Protocol routers are referred to as the internet gateways because between the networks the routers use an IP address for routing the packets.
In the TCP/IP structure, the router works at several layers and also the router can select their path for the flow of the data because they know where is the other routers.
Answer and Explanation:
Given data:
Distance (D) = 40 KM
Speed of light in the fiber =Distance/ speed of light in the fiber
a) Delay (P) = Distance/ speed of light in the fiber
= (40,000 Meters/2×108 m/s)
=( 40×103 Meters/2×108 m/s)
Propagation delay (P) = 0.0002 seconds or 200 microseconds
b)
if propagation delay is 0.0002 Seconds roundup trip time (RTT) will be 0.0004 Seconds or 400 micro Seconds
Essentially since transmission times and returning ACKs are insignificant all we really need is a value slightly greater than 0.0004 seconds for our timeout value.
c)
The obvious reasons would be if the data frame was lost, or if the ACK was lost. Other possibilities include extremely slow processing on the receive side (late ACK).
Or Extremely Slow Processing of the ACK after it is received back at the send side.
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<h3>a= hybrid computer can perform the function of both analog and digital computer</h3>