Question 1

Given the following declaration:  which of the following correctly finds the sum of the elements of the fifth row of sale?

Accepted Answer

A)   sum = 0;For(j = 0; j Sum = sum + sale[5][j];
B)   sum = 0;For(j = 0; j Sum = sum + sale[4][j];
C)   sum = 0;For(j = 0; j Sum = sum + sale[5][j];
D)   sum = 0;For(j = 0; j Sum = sum + sale[4][j];E) All of the above
F) A) and B)

Question 2

What is the output of the following C++ code?

Accepted Answer

A)   0 1 2 3 4
B)   0 5 10 15
C)   0 5 10 15 20
D)   5 10 15 20E) B) and D)
F) B) and C) C

Question 3

What is the value of alpha[2] after the following code executes?

Accepted Answer

A)   1
B)   4
C)   5
D)   6E) All of the above
F) A) and B) C

Question 4

If an array index goes out of bounds, the program always terminates in an error.

Accepted Answer

A) True 
 B)False

Question 5

Assume you have the following declaration double salesData[1000];. Which of the following ranges is valid for the index of the array salesData?

Accepted Answer

A)   0 through 999
B)   0 through 1000
C)   1 through 1001
D)   1 through 1000E) C) and D)
F) A) and B) A

Question 6

After the following statements execute, what are the contents of matrix?

Accepted Answer

A)   0 01 12 2
B)   0 12 34 5
C)   0 11 22 3
D)   1 12 23 3E) B) and D)
F) B) and C)

Question 7

In a(n) ____________________ data type, each data item is a collection of other data items.

Accepted Answer

The answer of In a(n) ____________________ data type, each data...

Question 8

The ____________________ of an array is the address (that is, the memory location) of the first array component.

Accepted Answer

The answer of The ____________________ of an array is the...

Question 9

Consider the following declaration: int alpha[5] = {3, 5, 7, 9, 11};. Which of the following is equivalent to this statement?

Accepted Answer

A)   int alpha[] = {3, 5, 7, 9, 11};
B)   int alpha[] = {3 5 7 9 11};
C)   int alpha[5] = [3, 5, 7, 9, 11];
D)   int alpha[] = (3, 5, 7, 9, 11) ;E) None of the above
F) B) and D)

Question 10

Suppose list is a one dimensional array of size 25, wherein each component is of type int. Further, suppose that sum is an int variable. The following for loop correctly finds the sum of the elements of list.

Accepted Answer

A) True 
 B)False

Question 11

The statement int list[25]; declares list to be an array of 26 components, since the array index starts at 0.

Accepted Answer

A) True 
 B)False

Question 12

For a list of length n, the ____________________ sort makes exactly (n(n - 1))/2 key comparisons and 3(n - 1) item assignments.

Accepted Answer

The answer of For a list of length n, the...

Question 13

Consider the following statement: int alpha[25][10];. Which of the following statements about alpha is true?

Accepted Answer

A)   Rows of alpha are numbered 0...24 and columns are numbered 0...9.
B)   Rows of alpha are numbered 0...24 and columns are numbered 1...10.
C)   Rows of alpha are numbered 1...24 and columns are numbered 0...9.
D)   Rows of alpha are numbered 1...25 and columns are numbered 1...10.E) A) and D)
F) None of the above

Question 14

What is the output of the following C++ code?

Accepted Answer

A)   0 5 10 15 20
B)   5 10 15 20 0
C)   5 10 15 20 20
D)   Code results in index out-of-boundsE) C) and D)
F) All of the above

Question 15

A collection of a fixed number of elements (called components)  arranged in n dimensions (n >= 1)  is called a(n)  ____.

Accepted Answer

A)   matrix
B)   vector
C)   n-dimensional array
D)   parallel arrayE) None of the above
F) B) and D)

Question 16

Arrays can be passed as parameters to a function by value, but it is faster to pass them by reference.

Accepted Answer

A) True 
 B)False

Question 17

Consider the statement int list[10][8];. Which of the following about list is true?

Accepted Answer

A)   list has 10 rows and 8 columns.
B)   list has 8 rows and 10 columns.
C)   list has a total of 18 components.
D)   list has a total of 108 components.E) None of the above
F) A) and B)

Question 18

Which of the following correctly declares name to be a character array and stores "William" in it?

Accepted Answer

A)   char name[6] = "William";
B)   char name[7] = "William";
C)   char name[8] = "William";
D)   char name[8] = 'William';E) A) and B)
F) B) and C)

Question 19

Consider the following statement: double alpha[10][5];. The number of components of alpha is ____.

Accepted Answer

A)   15
B)   50
C)   100
D)   150E) None of the above
F) B) and C)

Question 20

When you pass an array as a parameter, the base address of the actual array is passed to the formal parameter.

Accepted Answer

A) True 
 B)False

Exam 8: Arrays

Given the following declaration: which of the following correctly finds the sum of the elements of the fifth row of sale?

Correct AnswerverifiedShow Answer

What is the output of the following C++ code?

Correct AnswerverifiedC

What is the value of alpha[2] after the following code executes?

Correct AnswerverifiedC

If an array index goes out of bounds, the program always terminates in an error.

Correct AnswerverifiedShow Answer

Assume you have the following declaration double salesData[1000];. Which of the following ranges is valid for the index of the array salesData?

Correct AnswerverifiedA

After the following statements execute, what are the contents of matrix?

Correct AnswerverifiedShow Answer

In a(n) ____________________ data type, each data item is a collection of other data items.

Correct AnswerverifiedShow Answer

The ____________________ of an array is the address (that is, the memory location) of the first array component.

Correct AnswerverifiedShow Answer

Consider the following declaration: int alpha[5] = {3, 5, 7, 9, 11};. Which of the following is equivalent to this statement?

Correct AnswerverifiedShow Answer

Suppose list is a one dimensional array of size 25, wherein each component is of type int. Further, suppose that sum is an int variable. The following for loop correctly finds the sum of the elements of list.

Correct AnswerverifiedShow Answer

The statement int list[25]; declares list to be an array of 26 components, since the array index starts at 0.

Correct AnswerverifiedShow Answer

For a list of length n, the ____________________ sort makes exactly (n(n - 1))/2 key comparisons and 3(n - 1) item assignments.

Correct AnswerverifiedShow Answer

Consider the following statement: int alpha[25][10];. Which of the following statements about alpha is true?

Correct AnswerverifiedShow Answer

What is the output of the following C++ code?

Correct AnswerverifiedShow Answer

A collection of a fixed number of elements (called components) arranged in n dimensions (n >= 1) is called a(n) ____.

Correct AnswerverifiedShow Answer

Arrays can be passed as parameters to a function by value, but it is faster to pass them by reference.

Correct AnswerverifiedShow Answer

Consider the statement int list[10][8];. Which of the following about list is true?

Correct AnswerverifiedShow Answer

Which of the following correctly declares name to be a character array and stores "William" in it?

Correct AnswerverifiedShow Answer

Consider the following statement: double alpha[10][5];. The number of components of alpha is ____.

Correct AnswerverifiedShow Answer

When you pass an array as a parameter, the base address of the actual array is passed to the formal parameter.

Correct AnswerverifiedShow Answer

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