C++ and Computer Science Quiz Answers, Page 1

Question #1

What number of digits that can be accurately stored in a float (based on the IEEE Standard 754)?

6
38
An unlimited number

Question #2

Which of the following is evaluated first:

&&
||
!

Question #3

What does 7/9*9 equal (in C and C++)?

1
0.08642
0

Question #4

Which is not valid in C?

class aClass{public:int x;};
/* A comment */
char x=12;

Question #5

Which of the following is not a valid declaration for main()?

int main()
int main(int argc, char *argv[])
They both work

Question #6

Evaluate the following as true or false: !(1 &&0 || !1)

True
False
Invalid statement

Question #7

Which command properly allocates memory?

char *a=new char[20];
char a=new char[20];
char a=new char(20.0);

Question #8

What operator is used to access a struct through a pointer?

->
>>
*

Question #9

Which is not an ANSI C++ function?

sin()
kbhit()
tmpnam()

Question #10

True or false: If you continuously increment a variable, it will become negative?

True
False
It depends on the variable type
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