Static variables are often used:
(a) in arithmetic expressions
(b) to communicate between objects
(c) within looping structures
(d) all of the above
(b) to communicate between objects
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The __________ unit is capable of mimicking the processor and of taking over control of the system bus just like a processor.
A) ?interrupt-driven I/O ? B) ?I/O channel C) ?direct memory access ? D) ?programmed I/O
Insert const before .any of the following array parameters that can be changed to const.
``` void output(double a[], int size); //Pre: a[0] through a[size-1] have values set. //Post: a[0] through a[size-1] have been displayed on the screen. void dropOdd(int a[], int size); //Pre: a[0] through a[size-1] have values set. //Post: All odd numbers in a[0] through a[size-1] have //been changed to 0. ```
Which of the following uses the same key to encrypt and decrypt the data?
a. Symmetric encryption b. Asymmetric encryption c. Encryption d. Cryptographic key