Question 1

When processing the contents of an array, the foreach loop does not provide a variable that can be used as an array subscript.

Accepted Answer

A) True 
 B)False

Question 2

Because subscript numbering starts at 0, the subscript of the last element in an array is 1 less than the total number of elements in the array.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

The storage locations in an array are known as ____________.

Accepted Answer

A)  values 
B)  sectors 
C)  compartments 
D)  elements

Question 5

When you use either the ref or out keywords before an array parameter, the receiving method does not automatically make a local copy of the array.

Accepted Answer

A) True 
 B)False

Question 6

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

Question 7

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

Question 8

You can call the ____________ method to insert an item at a specific index position in a List object.

Accepted Answer

A)  Put 
B)  Add 
C)  Insert 
D)  Place

Question 9

What special value are the elements of an array of reference type objects equal to by default?

Accepted Answer

A)  0 
B)  void 
C)  −1 
D)  null

Question 10

Look at the following code sample: const int SIZE = 10;
Int[] values = new int[SIZE];
For (int index = 0; index < SIZE; index++)
{
Values[index] = index + 1;
}
When the loop is finished stepping through the values array, what value will be stored in values[0]?

Accepted Answer

A)  10 
B)  11 
C)  0 
D)  1

Question 11

An array and the variable that references it hold the same value.

Accepted Answer

A) True 
 B)False

Question 12

The foreach loop is designed to work with a temporary, read-only variable known as the ____________.

Accepted Answer

A)  loop variable 
B)  counter variable 
C)  iteration variable 
D)  foreach variable

Question 13

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)  Length property 
D)  Size property

Question 14

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

Question 15

When calling a method and passing an array variable as an argument, the variable contains a ____________ to the array.

Accepted Answer

A)  variable 
B)  value 
C)  reference 
D)  parameter

Question 16

To declare a two-dimensional array, two ____________ are required: The first one is for the number of rows, and the second one is for the number of columns.

Accepted Answer

A)  reference variables 
B)  Boolean variables 
C)  named constants 
D)  size declarators

Question 17

A two-dimensional array can be thought of as having rows and columns of elements.

Accepted Answer

A) True 
 B)False

Question 18

C# provides a special loop known as the ____________, that automatically iterates once for each element in the array.

Accepted Answer

A)  do-while loop 
B)  foreach loop 
C)  for loop 
D)  while loop

Question 19

You can optionally initialize a List object when you declare it.

Accepted Answer

A) True 
 B)False

Question 20

If you want to take out all items from a List object, call the ____________ method.

Accepted Answer

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

Exam 7: Arrays and Lists

When processing the contents of an array, the foreach loop does not provide a variable that can be used as an array subscript.

Because subscript numbering starts at 0, the subscript of the last element in an array is 1 less than the total number of elements in the array.

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

The storage locations in an array are known as ____________.

When you use either the ref or out keywords before an array parameter, the receiving method does not automatically make a local copy of the array.

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?

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.

You can call the ____________ method to insert an item at a specific index position in a List object.

What special value are the elements of an array of reference type objects equal to by default?

Look at the following code sample: const int SIZE = 10; Int[] values = new int[SIZE]; For (int index = 0; index < SIZE; index++) { Values[index] = index + 1; } When the loop is finished stepping through the values array, what value will be stored in values[0]?

An array and the variable that references it hold the same value.

The foreach loop is designed to work with a temporary, read-only variable known as the ____________.

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

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

When calling a method and passing an array variable as an argument, the variable contains a ____________ to the array.

To declare a two-dimensional array, two ____________ are required: The first one is for the number of rows, and the second one is for the number of columns.

A two-dimensional array can be thought of as having rows and columns of elements.

C# provides a special loop known as the ____________, that automatically iterates once for each element in the array.

You can optionally initialize a List object when you declare it.

If you want to take out all items from a List object, call the ____________ method.