Mpilers can have a profound impact on the performance of an application. Assume that for a program, compiler A results in a dynamic instruction count of 1.0E9 and has an execution time of 1.1 s,

while compiler B results in a dynamic instruction count of 1.2E9 and an execution time of 1.5 s.

A. Find the average CPI for each program given that the processor has a clock cycle time of 1 ns.

B. Assume the compiled programs run on two different processors. If the execution times on the

two processors are the same, how much faster is the clock of the processor running compiler A’s

code versus the clock of the processor running compiler B’s code?

C. A new compiler is developed that uses only 6.0E8 instructions and has an average CPI of 1.1.

What is the speedup of using this new compiler versus using compiler A or B on the original

processor?​

If you want to import a picture into a dtp application, what must you do first? draw an image frame. import text. open the folder containing the file. select get image… from the windows menu.

Which explains extrinsic motivation? a)motivation in which there is a reward b)motivation that is personally satisfying c)motivation that is personally meaningful d)motivation in which the subject is interesting

Computer security/cybersecurity1) each of the following code fragments contains a number of security vulnerabilities. for each fragment, identify these security vulnerabilities and, for each vulnerability, discuss at least one way that it could be improved. note that in your discussion of how each vulnerability could be improved, you do not need to re-write a new version of the program in c; simply discuss your solution, either in pseudocode or in 1-2 sentences. a) /* file descriptor leak */#include #include int main(int argc, char *argv[]){ char *filepath = argv[0]; char *shellpath = argv[1]; file *passwords; passwords = fopen(filepath, "r"); /* read the password and do something with it */ /* . . */ /* fork and execute alternative shell */ execl(shellpath, "shell", null); }b)#include /* assume the following function is written for an electronic storefront. the user will enter the id of the item to be ordered, as well as the quantity of units that they would like to purchase. the program will then lookup the price for the price for the item using a predefined function, and return the total cost of the order.*/int gettotalcost(){ char itemid[9]; int price, unitsordered, cost; printf(" enter the 9-digit id of the item to be ordered: "); scanf("%s", & itemid); /* lookup the price according to the itemid */ price = getpricebyid(itemid); printf(" enter the quantity of units to be ordered: "); scanf("%d", & unitsordered); cost = price * unitsordered; return cost; }c)#include /* the following function is intended to return a user's full name by concatenating the user's first and last name into a single string and then returning that string. */char *getfullname(char *firstname, char *lastname, int max_len){ char fullname[max_len]; strcpy(fullname, firstname); strcat(fullname, " "); strcat(fullname, lastname); return fullname; }d)#include /* the following code snippet runs through the list of cli arguments entered and displays them to the console. */int main(int argc, char *argv[]){ int i; printf("you've entered the following arguments: "); for(i = 0; i < argc; i++){ print(argv[i]); printf("\n"); } /* */}