Question 1

Given the following declaration:int j; int sum;
Double sale[10][7];
Which of the following correctly finds the sum of the elements of the fourth column of sale?

Accepted Answer

A)  sum = 0;
For(j = 0; j < 7; j++)
Sum = sum + sale[j][3]; 
B)  sum = 0;
For(j = 0; j < 7; j++)
Sum = sum + sale[j][4]; 
C)  sum = 0;
For(j = 0; j < 10; j++)
Sum = sum + sale[j][4]; 
D)  sum = 0;
For(j = 0; j < 10; j++)
Sum = sum + sale[j][3]; 
A)  sum = 0;
For(j = 0; j < 7; j++)
Sum = sum + sale[j][3]; 
B)  sum = 0;
For(j = 0; j < 7; j++)
Sum = sum + sale[j][4]; 
C)  sum = 0;
For(j = 0; j < 10; j++)
Sum = sum + sale[j][4]; 
D)  sum = 0;
For(j = 0; j < 10; j++)
Sum = sum + sale[j][3]; D

Question 2

Consider the following declaration:char charArray[51]; char discard;
Assume that the input is:Hello There!
How are you?
What is the value of discard after the following statements execute?

Accepted Answer

A)  discard = ' ' (Space) 
B)  discard = '!' 
C)  discard = '
' 
D)  discard = '\0' 
A)  discard = ' ' (Space) 
B)  discard = '!' 
C)  discard = '
' 
D)  discard = '\0' C

Question 3

The one place where C++ allows aggregate operations on arrays is the input and output of C-strings.

Accepted Answer

A) True 
 B)False  True

Question 4

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 5

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

Question 6

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. 
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.

Question 7

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 8

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 1000 
A)  0 through 999 
B)  0 through 1000 
C)  1 through 1001 
D)  1 through 1000

Question 9

Assume you have the following declaration char nameList[100];.Which of the following ranges is valid for the index of the array nameList?

Accepted Answer

A)  0 through 99 
B)  0 through 100 
C)  1 through 100 
D)  1 through 101 
A)  0 through 99 
B)  0 through 100 
C)  1 through 100 
D)  1 through 101

Question 10

Assume you have the following declaration int beta[50];.Which of the following is a valid element of beta?

Accepted Answer

A)  beta['2'] 
B)  beta['50'] 
C)  beta[0] 
D)  beta[50] 
A)  beta['2'] 
B)  beta['50'] 
C)  beta[0] 
D)  beta[50]

Question 11

The form of the for loop shown below is called a(n) ____________________ for loop.
for (dataType identifier : arrayName)
statements
​

Accepted Answer

range-base

Question 12

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. 
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.

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

All components of an array are of the same data type.

Accepted Answer

A) True 
 B)False

Question 15

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 16

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-bounds 
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-bounds

Question 17

In C++, the null character is represented as ____.

Accepted Answer

A)  '\0' 
B)  "\0" 
C)  '0' 
D)  "0" 
A)  '\0' 
B)  "\0" 
C)  '0' 
D)  "0"

Question 18

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 19

Which of the following correctly declares and initializes alpha to be an array of four rows and three columns with the component type int?

Accepted Answer

A)  int alpha[4][3] = {{0,1,2} {1,2,3} {2,3,4} {3,4,5}}; 
B)  int alpha[4][3] = {0,1,2; 1,2,3; 2,3,4; 3,4,5}; 
C)  int alpha[4][3] = {0,1,2: 1,2,3: 2,3,4: 3,4,5}; 
D)  int alpha[4][3] = {{0,1,2}, {1,2,3}, {2,3,4}, {3,4,5}}; 
A)  int alpha[4][3] = {{0,1,2} {1,2,3} {2,3,4} {3,4,5}}; 
B)  int alpha[4][3] = {0,1,2; 1,2,3; 2,3,4; 3,4,5}; 
C)  int alpha[4][3] = {0,1,2: 1,2,3: 2,3,4: 3,4,5}; 
D)  int alpha[4][3] = {{0,1,2}, {1,2,3}, {2,3,4}, {3,4,5}};

Question 20

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

Accepted Answer

A)  2 4 6 8 10 
B)  4 3 2 1 0 
C)  8 6 4 2 0 
D)  10 8 6 4 2 
A)  2 4 6 8 10 
B)  4 3 2 1 0 
C)  8 6 4 2 0 
D)  10 8 6 4 2

Exam 8: Arrays

Given the following declaration:int j; int sum; Double sale[10][7]; Which of the following correctly finds the sum of the elements of the fourth column of sale?

Consider the following declaration:char charArray[51]; char discard; Assume that the input is:Hello There! How are you? What is the value of discard after the following statements execute?

The one place where C++ allows aggregate operations on arrays is the input and output of C-strings.

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

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

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

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.

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

Assume you have the following declaration char nameList[100];.Which of the following ranges is valid for the index of the array nameList?

Assume you have the following declaration int beta[50];.Which of the following is a valid element of beta?

The form of the for loop shown below is called a(n) ____________________ for loop. for (dataType identifier : arrayName) statements ​

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

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

All components of an array are of the same data type.

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

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

In C++, the null character is represented as ____.

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

Which of the following correctly declares and initializes alpha to be an array of four rows and three columns with the component type int?

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

An Overview of Computers and Programming Languages

Basic Elements of C++

Inputoutput

Control Structures I Selection

Control Structures Ii Repetition

User-Defined Function

Namespaces, the Class String, and User-Defined Simple Data Types

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Operator Overloading and Templates

Exception Handling

Recursion

Linked Lists

Stacks and Queue

Searching and Sorting Algorithms

Binary Trees

Graph Algorithms

Standard Template Library

Filters

The form of the for loop shown below is called a(n) ____________________ for loop. for (dataType identifier : arrayName) statements