Practice Test 2

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There are 20 questions in this quiz

Question 1: Multiple Choice       

Which of the following statements is false about data-types in C++:

an unsigned short int is usually 2 bytes and doesn't include negative numbers
a signed short int is normally 2 bytes and does include negative numbers
a char is normally 1 byte - there are 256 different characters to choose from
both signed and unsigned int's are normally 8 bytes

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Question 2: Multiple Choice       

Combining object code with any other object files and/or library files that may be necessary to make a stand-alone executable file is carried out by the...

compiler
linker
preprocessor
editor

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Question 3: Multiple Choice       

Which of the following statements is false?

reserved words in C++ are keywords such as const
int is a keyword and so is reserved
variable names are keywords
variable Identifiers MUST begin with a letter

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Question 4: Multiple Choice      

Which one of the following statements is false?

The remainder operator (%) can operate on real numbers
The escape sequence that produces a bell sound is \a
dividing an integer by another integer results in an integer
dividing an integer by a real number results in a real number

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Question 5: Multiple Choice       

Which one of the following produces an integer result?

3.0 + 5 / 2
5 / 2.0
2.0 / 2
3 + 5 / 2

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Question 6: Multiple Choice     

The function atoi() returns the type:

float
integer
double
char

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Question 7: Multiple Choice       

An #include directive instucts the...

compiler to include a file, such as a library
preprocessor to include a constant value
compiler to include include a constant value
preprocessor to include a file, such as a library

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Question 8: Multiple Choice       

Which library file is needed for sending and receiving keyboard input?

stdio.h
conio.h
iostream.h
stdlib.h

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Question 9: Multiple Choice       

What output is produced by the code shown below?

      const int MAX = 5;
      int x = 12;
      x -= MAX;
      cout << x;

7
-12
-5
5

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Question 10: Multiple Choice       

Which one of the following comments about the evaluated expression is incorrect?

( 1 + 5) % 3 * 2 - 2     // expresion returns -2
2 - 10 % 4      // expresion returns 0
6 + 3 / 2      // expresion returns 7
100 / 5 / 2 % 7       // expresion returns 10

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Question 11: Multiple Choice       

What output is produced by the code shown below?

      const char LETTER = 'B';
      int x = LETTER;
      cout << x + 2;

95
67
68
103

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Question 12: Multiple Choice       

Which line of code produces a compiler error?

      1. const char LETTER = 'd';
      2. int x = 3;
      3. LETTER = x + 1;
      4. cout << LETTER;

1
2
3
4

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Question 13: Multiple Choice       

What output is produced by the code shown below?

      char LETTER = 'a';
      LETTER += 2;
      cout << LETTER;

b
c
99
100

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Question 14: Multiple Choice       

Which one of the following logical expressions returns FALSE?

5 + 10< 3 && 7 + 3 <= 20
!(3 % 1)
'a' != 'b' - 2
!0 || !1

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Question 15: Multiple Choice       

What output is produced by the following code?

     int x = 12, y = 5;
     if (x > 12) {
          if ( x < 15)
               cout << "BLUE";
      }
     else if ( y > 4)
          cout << "GREEN";
     else
          cout << "YELLOW";
     cout << "EGGS";

EGGS
BLUE EGGS
GREEN EGGS
YELLOW EGGS

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Question 16: Multiple Choice       

What output is produced by the following code?

     if ('10' != '12' - 2 || 'A' < 'B')
          cout << "YES";
     else
          cout << "NO";

a compiler error
YES
NO
a run-time error

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Question 17: Multiple Choice       

What output is produced by the following code?

     char ch;
     for (int i = 0; i >=-3; i--){
          ch = 67 + i;
          cout << ch << ",";
      }

67,68,69,
67,66,65,
C,D,E,
C,B,A,

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Question 18: Multiple Choice       

What is the last line of output is produced by the following code?

     for (int i = 1, k = 1; i <= 8; i += 2, k++)
          cout << i*k << endl;

28
15
6
1

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Question 19: Multiple Choice       

Which one of the following is a post-conditional loop?

for
while
switch
do...while

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Question 20: Multiple Choice       

Which one of the following is a loop construct which will always be executed at least once?

for
while
switch
do...while

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