A ________ is the number of bits that can be accessed at one time by the CPU.
A. bit rate
B. word
C. character
D. pulse width
Answer: B
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Assigning a subclass reference to a superclass variable is safe ________.
a. because the subclass object has an object of its superclass. b. because the subclass object is an object of its superclass. c. only when the superclass is abstract. d. only when the superclass is concrete.
Modify the following code to produce the output shown. Use proper indentation tech- niques. You may not make any changes other than inserting braces and changing the indentation of the code. The interpreter ignores indentation in a JavaScript program. We have eliminated the indentation from the following code to make the problem more chal- lenging. [Note: It is possible that no modification is necessary.]
```
if ( y == 8 )
if ( x == 5 )
document.writeln( "@@@@@
" );
else
document.writeln( "#####
" );
document.writeln( "$$$$$
" );
document.writeln( "&&&&&
" );
```
a) Assuming x = 5 and y = 8, the following output is produced.
@@@@@
$$$$$
&&&&&
b) Assuming x = 5 and y = 8, the following output is produced.
@@@@@
c. Assuming x = 5 and y = 8, the following output is produced.
@@@@@
&&&&&
d) Assuming x = 5 and y = 7, the following output is produced. [Note: The last three output statements after the else
are all part of a compound statement.]
#####
$$$$$
&&&&&
Describe the three permissions that can be assigned to a directory or file in UNIX/Linux systems.
What will be an ideal response?
Consider the following code which deletes all the nodes in a linked list.void doublyLinkedList::destroy(){ nodeType *temp; //pointer to delete the node while (first != nullptr) { temp = first; first = first->next; ____}last = nullptr;count = 0;}Which of the following is the missing statement?
A. delete first; B. delete temp; C. destroy temp; D. clear temp;