Question 1

What does the following statement declare? int *countPtr, count;

Accepted Answer

A)   Two int variables.
B)   One pointer to an int and one int variable.
C)   Two pointers to ints.
D)   The declaration is invalid.E) B) and D)
F) B) and C)

Question 2

When a compiler encounters a function parameter for a single-subscripted array of the form int a[], it converts the parameter to:

Accepted Answer

A)   int a
B)   int &a
C)   int *a
D)   No conversion is necessary.E) All of the above
F) A) and B)

Question 3

A function that prints a string by using pointer arithmetic such as ++ptr to output each character should have a parameter that is:

Accepted Answer

A)   A nonconstant pointer to nonconstant data.
B)   A nonconstant pointer to constant data.
C)   A constant pointer to nonconstant data.
D)   A constant pointer to constant data.E) A) and B)
F) A) and C)

Question 4

A string array is commonly used for:

Accepted Answer

A)   Command-line arguments.
B)   Storing an extremely long string.
C)   Storing multiple copies of the same string.
D)   Displaying floating-point numbers to the screen.E) None of the above
F) A) and B)

Question 5

Pointers cannot be used to:

Accepted Answer

A)   Contain memory addresses.
B)   Reference values directly.
C)   Pass an argument by reference.
D)   Manipulate dynamic data structures.E) A) and C)
F) B) and C)

Question 6

Three of the following expressions have the same value. Which of the following expressions has a value different from the others'?

Accepted Answer

A)   *&ptr
B)   &*ptr
C)   *ptr
D)   ptrE) C) and D)
F) None of the above

Question 7

What method should be used to pass an array to a function that does not modify the array and only looks at it using array subscript notation:

Accepted Answer

A)   A nonconstant pointer to nonconstant data.
B)   A nonconstant pointer to constant data.
C)   A constant pointer to nonconstant data.
D)   A constant pointer to constant data.E) C) and D)
F) None of the above

Question 8

Which of the following is not true of pointers to functions?

Accepted Answer

A)   They contain the starting address of the function code.
B)   They are dereferenced in order to call the function.
C)   They can be stored in arrays.
D)   They can not be assigned to other function pointers.E) A) and C)
F) A) and D)

Question 9

Which statement would be used to declare a 10-element integer array c?

Accepted Answer

A)   array c = int[10];
B)   c = int[10];
C)   int array c[10];
D)   int c[10];E) A) and B)
F) B) and C)

Question 10

Which of the following is not a valid way to pass arguments to a function in C++?

Accepted Answer

A)   By reference with reference arguments.
B)   By value.
C)   By reference with pointer arguments.
D)   By value with pointer arguments.E) A) and D)
F) B) and C)

Question 11

To prevent modification of a built-in array's values when you pass the built-in array to a function:

Accepted Answer

A)   The built-in array must be declared static in the function.
B)   The built-in array parameter can be preceded by the const qualifier.
C)   A copy of the built-in array must be made inside the function.
D)   The built-in array must be passed by reference.E) None of the above
F) C) and D)

Question 12

Sizeof:

Accepted Answer

A)   Is a binary operator.
B)   Returns the total number of elements in an array.
C)   Usually returns a double.
D)   Returns the total number of bytes in a variable.E) B) and C)
F) None of the above

Exam 8: Pointers and Pointer-Based Strings

Three of the following expressions have the same value. Which of the following expressions has a value different from the others'?

Correct Answer
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Sizeof:

Correct Answer
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Pointers cannot be used to:

Correct Answer
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A string array is commonly used for:

Correct Answer
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Which statement would be used to declare a 10-element integer array c?

Correct Answer
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Which of the following is not a valid way to pass arguments to a function in C++?

Correct Answer
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When a compiler encounters a function parameter for a single-subscripted array of the form int a[], it converts the parameter to:

Correct Answer
verified

A function that prints a string by using pointer arithmetic such as ++ptr to output each character should have a parameter that is:

Correct Answer
verified

What does the following statement declare? int *countPtr, count;

Correct Answer
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Which of the following is not true of pointers to functions?

Correct Answer
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What method should be used to pass an array to a function that does not modify the array and only looks at it using array subscript notation:

Correct Answer
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To prevent modification of a built-in array's values when you pass the built-in array to a function:

Correct Answer
verified

Exam 8: Pointers and Pointer-Based Strings

Three of the following expressions have the same value. Which of the following expressions has a value different from the others'?

Correct AnswerverifiedShow Answer

Sizeof:

Correct AnswerverifiedShow Answer

Pointers cannot be used to:

Correct AnswerverifiedShow Answer

A string array is commonly used for:

Correct AnswerverifiedShow Answer

Which statement would be used to declare a 10-element integer array c?

Correct AnswerverifiedShow Answer

Which of the following is not a valid way to pass arguments to a function in C++?

Correct AnswerverifiedShow Answer

When a compiler encounters a function parameter for a single-subscripted array of the form int a[], it converts the parameter to:

Correct AnswerverifiedShow Answer

A function that prints a string by using pointer arithmetic such as ++ptr to output each character should have a parameter that is:

Correct AnswerverifiedShow Answer

What does the following statement declare? int *countPtr, count;

Correct AnswerverifiedShow Answer

Which of the following is not true of pointers to functions?

Correct AnswerverifiedShow Answer

What method should be used to pass an array to a function that does not modify the array and only looks at it using array subscript notation:

Correct AnswerverifiedShow Answer

To prevent modification of a built-in array's values when you pass the built-in array to a function:

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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