COSC 1436 EXAM QUESTIONS AND ANSWERS
Something within a while loop must eventually cause the condition to become false, or a(n) ________ results. - Answer-infinite loop
True/False: A while loop is somewhat limited, because the counter can only count up, not down. - Answer-false
A file ___...
COSC 1436 EXAM QUESTIONS AND
ANSWERS
Something within a while loop must eventually cause the condition to become false, or
a(n) ________ results. - Answer-infinite loop
True/False: A while loop is somewhat limited, because the counter can only count up,
not down. - Answer-false
A file __________ is a small holding section of memory that file-bound information is
first written to - Answer-buffer
int number = 6
int x = 0:
x = -- number;
cout << x << endl; - Answer-5
True/False: the scope of a variable declared in a for loop's initialization expression
always extends beyond the body of the loop - Answer-false
The while loop has two important parts: an expression that is tested for a true or false
value, and: - Answer-a statement or block that is repeated as long as the expression is
true
True/False: In C++ you can pass a string object as argument to a file stream object's
open member function - Answer-True
The statement in the body of a while loop may never be executed, whereas the
statements in the body of a do-while loop will be executed: - Answer-at least one
True/false: string objects have a member function named c_str that returns the contents
of the object formatted as a null-terminated C-string - Answer-true
n = 1;
for ( ; n <=5; )
cout << n << ' ' ;
n++; - Answer-1 1 1 ..... and on forever
What will the following code display?
Int number = 6;
Cout << number++ << endl; - Answer-6
How many times will the following loop display "Hello"?
, for (int i = 20; i >0; i --)
cout << "Hello!" << endl; - Answer-20
This is a variable that is regularly incremented or decremented each time a loop
iterates. - Answer-counter
This is a special value that marks the end of a list of values. - Answer-sentinel
What will the following code display?
Int number = 6;
number++;
Cout << number << endl; - Answer-7
If you want a user to enter exactly 20 values, which loop would be the best to use? -
Answer-for
int number = 6
++number;
cout << number << endl; - Answer-7
True/False: the update expression of a for loop can contain more than one statement,
e.g. counter++ - Answer-true
This statement may be used to stop a loop's current iteration and begin the next one -
Answer-continue
True/False the increment and decrement operators can be used in mathematical
expressions; however, they cannot be used in relational expressions - Answer-False
This is a statement that causes a function to execute. - Answer-function call
The value in this type of local variable persists between function calls. - Answer-static
Which of the following statements about global variables is true? - Answer-A global
variable can have the same name as a variable that is declared locally within a function
Look at the following function prototype
int myFunction(double);
what is the data type of the function's parameter variable? - Answer-double
True/False: One reason for using functions is to break programs into manageable units,
or modules - Answer-true
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