Question 1

With what value should the accumulator variable be initialized to calculate the total of the values in a numeric array?

Accepted Answer

A)  null 
B)  false 
C)  0 
D)  -1 
A)  null 
B)  false 
C)  0 
D)  -1

Question 2

Each element in an array is assigned a unique number known as a(n) ____________.

Accepted Answer

A)  subscript 
B)  identifier 
C)  delimiter 
D)  vector 
A)  subscript 
B)  identifier 
C)  delimiter 
D)  vector

Question 3

You can store a mixture of data types in an array.

Accepted Answer

A) True 
 B)False

Question 4

If you provide an initialization list when declaring an array, you can leave out the size declarator, but you cannot leave out the new operator and its subsequent expression.

Accepted Answer

A) True 
 B)False

Question 5

The memory that is allocated for a reference type variable is the actual location that will hold any value that is assigned to that variable.

Accepted Answer

A) True 
 B)False

Question 6

Which one of the following statements assigns the value 40 to the first element in an int array named values?

Accepted Answer

A)  values[-1] = 40; 
B)  values[0] = 40; 
C)  values[null] = 40; 
D)  values[1] = 40; 
A)  values[-1] = 40; 
B)  values[0] = 40; 
C)  values[null] = 40; 
D)  values[1] = 40;

Question 7

To compare the contents of two arrays, you must compare the ____________ of the two arrays.

Accepted Answer

A)  memory locations 
B)  reference variables 
C)  elements 
D)  size 
A)  memory locations 
B)  reference variables 
C)  elements 
D)  size

Question 8

Look at the following code sample: 
const int ROWS = 2;
Const int COLS = 2;
Int[,] grid = new int[ROWS, COLS];
What is the total number of elements in the grid array?

Accepted Answer

A)  2 
B)  4 
C)  8 
D)  16 
A)  2 
B)  4 
C)  8 
D)  16

Question 9

In C#, you cannot reassign an array reference variable to a different array.

Accepted Answer

A) True 
 B)False

Question 10

You can use the == operator to compare two array reference variables and determine whether the arrays are equal.

Accepted Answer

A) True 
 B)False

Question 11

It is critical to use reference parameters in any method that must be able to change the values of the items that are passed to it as parameters.

Accepted Answer

A) True 
 B)False

Question 12

All the data types in C# − and the underlying .NET Framework − fall into two categories: value types and reference types.

Accepted Answer

A) True 
 B)False

Question 13

Reference variables can be used only to reference objects.

Accepted Answer

A) True 
 B)False

Question 14

If you want to remove all the items from a List, you can call the ____________ method.

Accepted Answer

A)  Clear 
B)  Reset 
C)  ClearAll 
D)  NewList 
A)  Clear 
B)  Reset 
C)  ClearAll 
D)  NewList

Question 15

The items that are stored in a List have a corresponding index.

Accepted Answer

A) True 
 B)False

Question 16

Creating a reference type object typically requires the following two steps:
1. You declare a reference variable.
2. You create the object and associate it with the reference variable.

Accepted Answer

A) True 
 B)False

Question 17

A List object has a(n) ____________ that holds the number of items stored in the List.

Accepted Answer

A)  Count property 
B)  Total property 
C)  reference variable 
D)  extra memory location 
A)  Count property 
B)  Total property 
C)  reference variable 
D)  extra memory location

Question 18

The ____________ works like this: The smallest value in the array is located and moved to element 0. The next smallest value is located and moved to element 1. This process continues until all the elements have been placed in their proper order.

Accepted Answer

A)  bubble sort 
B)  binary search 
C)  Boolean swap 
D)  selection sort 
A)  bubble sort 
B)  binary search 
C)  Boolean swap 
D)  selection sort

Question 19

Because arrays are always passed ____________, a method that receives an array as an argument has access to the actual array.

Accepted Answer

A)  by value 
B)  globally 
C)  in memory 
D)  by reference 
A)  by value 
B)  globally 
C)  in memory 
D)  by reference

Question 20

An array's Length property is read only, so you cannot change its value.

Accepted Answer

A) True 
 B)False

With what value should the accumulator variable be initialized to calculate the total of the values in a numeric array?

Each element in an array is assigned a unique number known as a(n) ____________.

You can store a mixture of data types in an array.

If you provide an initialization list when declaring an array, you can leave out the size declarator, but you cannot leave out the new operator and its subsequent expression.

The memory that is allocated for a reference type variable is the actual location that will hold any value that is assigned to that variable.

Which one of the following statements assigns the value 40 to the first element in an int array named values?

To compare the contents of two arrays, you must compare the ____________ of the two arrays.

Look at the following code sample: const int ROWS = 2; Const int COLS = 2; Int[,] grid = new int[ROWS, COLS]; What is the total number of elements in the grid array?

In C#, you cannot reassign an array reference variable to a different array.

You can use the == operator to compare two array reference variables and determine whether the arrays are equal.

It is critical to use reference parameters in any method that must be able to change the values of the items that are passed to it as parameters.

All the data types in C# − and the underlying .NET Framework − fall into two categories: value types and reference types.

Reference variables can be used only to reference objects.

If you want to remove all the items from a List, you can call the ____________ method.

The items that are stored in a List have a corresponding index.

Creating a reference type object typically requires the following two steps: 1. You declare a reference variable. 2. You create the object and associate it with the reference variable.

A List object has a(n) ____________ that holds the number of items stored in the List.

The ____________ works like this: The smallest value in the array is located and moved to element 0. The next smallest value is located and moved to element 1. This process continues until all the elements have been placed in their proper order.

Because arrays are always passed ____________, a method that receives an array as an argument has access to the actual array.

An array's Length property is read only, so you cannot change its value.

Introduction to Computers and Programming

Introduction to Visual C

Processing Data

Making Decisions

Loops, Files, and Random Numbers

Modularizing Your Code With Methods

More About Processing Data

Classes and Multiform Projects

Inheritance and Polymorphism

Databases

Filters

Exam 7: Arrays and Lists

With what value should the accumulator variable be initialized to calculate the total of the values in a numeric array?

Each element in an array is assigned a unique number known as a(n) ____________.

You can store a mixture of data types in an array.

If you provide an initialization list when declaring an array, you can leave out the size declarator, but you cannot leave out the new operator and its subsequent expression.

The memory that is allocated for a reference type variable is the actual location that will hold any value that is assigned to that variable.

Which one of the following statements assigns the value 40 to the first element in an int array named values?

To compare the contents of two arrays, you must compare the ____________ of the two arrays.

Look at the following code sample: const int ROWS = 2; Const int COLS = 2; Int[,] grid = new int[ROWS, COLS]; What is the total number of elements in the grid array?

In C#, you cannot reassign an array reference variable to a different array.

You can use the == operator to compare two array reference variables and determine whether the arrays are equal.

It is critical to use reference parameters in any method that must be able to change the values of the items that are passed to it as parameters.

All the data types in C# − and the underlying .NET Framework − fall into two categories: value types and reference types.

Reference variables can be used only to reference objects.

If you want to remove all the items from a List, you can call the ____________ method.

The items that are stored in a List have a corresponding index.

Creating a reference type object typically requires the following two steps: 1. You declare a reference variable. 2. You create the object and associate it with the reference variable.

A List object has a(n) ____________ that holds the number of items stored in the List.

The ____________ works like this: The smallest value in the array is located and moved to element 0. The next smallest value is located and moved to element 1. This process continues until all the elements have been placed in their proper order.

Because arrays are always passed ____________, a method that receives an array as an argument has access to the actual array.

An array's Length property is read only, so you cannot change its value.

Introduction to Computers and Programming

Introduction to Visual C

Processing Data

Making Decisions

Loops, Files, and Random Numbers

Modularizing Your Code With Methods

More About Processing Data

Classes and Multiform Projects

Inheritance and Polymorphism

Databases

Filters