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.
Psychology, because psychology is the study of how the mind works, and therefor what causes stress.
Answer:
Following are the program in c language
#include<stdio.h> // header file
int main() // main function
{
int ar[10],k,biggest; // variable declaration
printf("Enter the ten values:\n");
for (k = 0;k < 10; k++)
{
scanf("%d", &ar[k]); // user input of 10 number
}
biggest = ar[0]; // store the array index of 0 into biggest variable
for (k = 0; k< 10; k++) // finding the biggest number
{
if (ar[k] >biggest)
{
biggest = ar[k];
}
}
printf(" biggest num is %d", biggest); // display the biggest number
return 0;
}
Output:
Enter the ten values:
12
2
4
5
123
45
67
453
89
789
biggest num is 789
Explanation:
Here we declared an array ar[10] of type int which store the 10 integer values.
Taking 10 integer input from the user in array ar .After that iterating the loop and finding the biggest number by using if statement and store the biggest number in biggest variable .
Finally display biggest number.
The answer is firewall. It is a network security device that observes inbound and outbound network traffic and chooses whether to allow or block specific traffic based on a well-defined set of security rules. Firewalls have been a first line of protection in network security for over 25 years. The firewall present a barrier between measured and secured internal networks that can be trusted and untrusted outside networks, for example the Internet. A firewall can be software, hardware, or even both.
