(+5) Suppose the variables X and Y in the following Bare Bones program have the
ID: 3709433 • Letter: #
Question
(+5) Suppose the variables X and Y in the following Bare Bones program have the values 3 and 2, respectively, when execution begins. What will be the value of Z when the program terminates?
clear Z
while X not 0:
clear W
while Y not 0:
decr Y
incr W
while W not 0:
incr Z
incr Y
decr W
decr X
incr Z
Z == 6 b. Z == 2 c. Z == 9 d. None of these
(+5) If xa mod n = c and xb mod n = d then xa+b mod equals
A. c + d mod n
B. c*d mod n
C. cd mod n
D. None of the above
(+5) If an RSA public key encryption system were based on the primes p = 3 and q = 7, which of the following pairs of values would be suitable for the encryption and decryption keys e and d?
A. 2 and 6 B. 5 and 29 C. 4 and 9 D. 7 and 23 E. None of these
(+5) Suppose the variables X and Y in the following Bare Bones program have the values 3 and 2, respectively, when execution begins. What will be the value of Z when the program terminates?
clear Z
while X not 0:
decr X
incr Z
while Y not 0:
decr Y
incr Z
Z == 6
Z == 5
Z == 4
None of the above
(+5) Suppose the variable X in the following Bare Bones program has value 3 when execution begins
clear Y
decr X
while X not 0:
decr X
incr Y
What will be the values of X and Y when the program terminates?
A X == 1 Y == 2 B. X == 1 Y == 0
C X == 0 Y == 2 D. None of these
(+5) An unsolvable problem is a problem for which
no solution exists.
no one knows the solution.
no algorithm exists for finding the solution.
no one wants to known the solution.
(+5) Which of the following sets of values constitutes a valid RSA public key encryption system?
p = 5, q = 11, n = 55, e = 7, d = 23
p = 5, q = 11, n = 55, e = 17, d = 13
p = 5, q = 11, n = 55, e = 10, d = 13
p = 5, q = 11, n = 55, e = 11, d = 23
Explanation / Answer
A)Z==6
A)c+d mod n (never be a multiple take any values for x,a,b,c,d and check)
B )5 and 29
Z==5 (loop of X increment z three time and second loop of Y increments Z two times i.e total 5 times)
X=0 and Y=2 since X is decremented before loop and loop runs for 2,1,0
An unsolvable problem is a problem for which no algorithm exists for finding the solution
p=5,q=11,n=55,e=7,d=23 first option is correct
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