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.
Query data
Arrange data in certain order
Update information in more than one place at the same time
Merge data into a word processing document
Calculate loan payment is something you could possibly make a database do, but more likely you would simply use a spreadsheet. Databases are mostly for for storing, retrieving, sorting and manipulating data.
Answer:A
Explanation: I took the test !
Answer: a social protocol and something like DNS is that little socialbehavior, cues, or relationships are carried through DNS.
Explanation:
