Assume a communication system uses five protocol layers. If the application program using this communication system creates a message of 100 bytes and each layer adds a header of 20 bytes to the data unit, what is the efficiency (the ratio of application layer bytes transmitted to total number of bytes sent) of the system?

Given the following code: if (n == 2) { k -= 2; } else if (n == 3) { k -= 3; } can be rewritten as: if (< condition > ) { < assignment statement > ; } assume that evaluating < condition > does not change the values stored in n and k. which of the following could be used as < assignment statement > ? k -= n; k -= 1; k -= 2; k += n; k = n - k;

What type of computer network ensures high security ?

Which are not examples of chronic or persistent stress? moving