For a program running on a multi-cycle processor:When a BEQ instruction executes, the ALU subtracts its operands and asserts the Zero control signal when the result is 0, which causes the PC to be modified. When a SUB instruction executes, the ALU also subtracts its operands and asserts the Zero control signal when the result is 0.Does asserting the Zero control signal during execution of a SUB instruction cause the PC to be modified? Explain your reasoning.

3. bob is arguing that if you use output feedback (ofb) mode twice in a row to encrypt a long message, m, using the same key each time, it will be more secure. explain why bob is wrong, no matter what encryption algorithm he is using for block encryption (15 points).

Which type of tab stop is most for weights and measurements?

1. you have a small business that is divided into 3 departments: accounting, sales, and administration. these departments have the following number of devices (computers, printers, etc.): accounting-31, sales-28, and administration-13. using a class c private network, subnet the network so that each department will have their own subnet. you must show/explain how you arrived at your conclusion and also show the following: all available device addresses for each department, the broadcast address for each department, and the network address for each department. also, determine how many "wasted" (not usable) addresses resulted from your subnetting (enumerate them).