Question 1

Because array subscripts start at 1 rather than 0, you are not as likely to perform an off-by-one error.

Accepted Answer

A) True 
 B)False

Question 2

When you create a numeric array in C#, what value are its elements set to by default?

Accepted Answer

A)  null 
B)  0 
C)  255 
D)  -1 
A)  null 
B)  0 
C)  255 
D)  -1

Question 3

Which one of the following statements is not a valid array declaration?

Accepted Answer

A)  double[] parsecs = new double[10]; 
B)  decimal[] sales = new decimal[24.5m]; 
C)  string[] cities = new decimal[50]; 
D)  int[] quarters = new int[4]; 
A)  double[] parsecs = new double[10]; 
B)  decimal[] sales = new decimal[24.5m]; 
C)  string[] cities = new decimal[50]; 
D)  int[] quarters = new int[4];

Question 4

A(n) ____________ occurs when a loop iterates one time too many or one time too few.

Accepted Answer

A)  off-by-one error 
B)  buffer overrun 
C)  system crash 
D)  logic error 
A)  off-by-one error 
B)  buffer overrun 
C)  system crash 
D)  logic error

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

Writing the contents of an array to a file is a straightforward procedure: Open the file and use a loop to step through each element of the array, writing its contents to the file.

Accepted Answer

A) True 
 B)False

Question 7

An exception will occur if the specified index is less than 0 or greater than the List object's Count property.

Accepted Answer

A) True 
 B)False

Question 8

When only a reference of an object is copied and not the contents of the object itself, it is called a(n) ____________.

Accepted Answer

A)  shadow copy 
B)  memory copy 
C)  error copy 
D)  reference copy 
A)  shadow copy 
B)  memory copy 
C)  error copy 
D)  reference copy

Question 9

You can use the ____________ to insert an item at a specific index in a List.

Accepted Answer

A)  + operator 
B)  Add method 
C)  Insert method 
D)  Place property 
A)  + operator 
B)  Add method 
C)  Insert method 
D)  Place property

Question 10

To sum all the elements of a two-dimensional array, you can use a pair of nested if statements to add the contents of each element to the accumulator.

Accepted Answer

A) True 
 B)False

Question 11

A(n) ____________ is similar to a two-dimensional array, but the rows can have a different number of columns.

Accepted Answer

A)  offset array 
B)  skewed array 
C)  jagged array 
D)  differential array 
A)  offset array 
B)  skewed array 
C)  jagged array 
D)  differential array

Question 12

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 13

The only requirement for the binary search is that the values in the array must be sorted in ascending order.

Accepted Answer

A) True 
 B)False

Question 14

In C#, all arrays have a(n) ____________ that is set to the number of elements in the array.

Accepted Answer

A)  Element property 
B)  getSize method 
C)  Length property 
D)  GetBounds method 
A)  Element property 
B)  getSize method 
C)  Length property 
D)  GetBounds method

Question 15

If you know the value of the item that you want to remove from a List, but you do not know the item's index, you can use the ____________.

Accepted Answer

A)  - operator 
B)  Erase method 
C)  Remove method 
D)  -= operator 
A)  - operator 
B)  Erase method 
C)  Remove method 
D)  -= operator

Question 16

Look at the following code sample:
 
What value will the highest variable contain when the loop finishes?

Accepted Answer

A)  1 
B)  3 
C)  5 
D)  15 
A)  1 
B)  3 
C)  5 
D)  15

Question 17

A(n) ____________ is a special value that links a variable to an object.

Accepted Answer

A)  linker 
B)  reference 
C)  operator 
D)  delimiter 
A)  linker 
B)  reference 
C)  operator 
D)  delimiter

Question 18

List objects, like arrays, are always passed to a method ____________.

Accepted Answer

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

Question 19

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

Question 20

When you process a(n) ____________, you must process only the elements that contain valid items.

Accepted Answer

A)  partially filled array 
B)  reference copy 
C)  sequential search 
D)  Boolean expression 
A)  partially filled array 
B)  reference copy 
C)  sequential search 
D)  Boolean expression

Because array subscripts start at 1 rather than 0, you are not as likely to perform an off-by-one error.

When you create a numeric array in C#, what value are its elements set to by default?

Which one of the following statements is not a valid array declaration?

A(n) ____________ occurs when a loop iterates one time too many or one time too few.

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

Writing the contents of an array to a file is a straightforward procedure: Open the file and use a loop to step through each element of the array, writing its contents to the file.

An exception will occur if the specified index is less than 0 or greater than the List object's Count property.

When only a reference of an object is copied and not the contents of the object itself, it is called a(n) ____________.

You can use the ____________ to insert an item at a specific index in a List.

To sum all the elements of a two-dimensional array, you can use a pair of nested if statements to add the contents of each element to the accumulator.

A(n) ____________ is similar to a two-dimensional array, but the rows can have a different number of columns.

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.

The only requirement for the binary search is that the values in the array must be sorted in ascending order.

In C#, all arrays have a(n) ____________ that is set to the number of elements in the array.

If you know the value of the item that you want to remove from a List, but you do not know the item's index, you can use the ____________.

Look at the following code sample: What value will the highest variable contain when the loop finishes?

A(n) ____________ is a special value that links a variable to an object.

List objects, like arrays, are always passed to a method ____________.

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

When you process a(n) ____________, you must process only the elements that contain valid items.

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

Because array subscripts start at 1 rather than 0, you are not as likely to perform an off-by-one error.

When you create a numeric array in C#, what value are its elements set to by default?

Which one of the following statements is not a valid array declaration?

A(n) ____________ occurs when a loop iterates one time too many or one time too few.

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

Writing the contents of an array to a file is a straightforward procedure: Open the file and use a loop to step through each element of the array, writing its contents to the file.

An exception will occur if the specified index is less than 0 or greater than the List object's Count property.

When only a reference of an object is copied and not the contents of the object itself, it is called a(n) ____________.

You can use the ____________ to insert an item at a specific index in a List.

To sum all the elements of a two-dimensional array, you can use a pair of nested if statements to add the contents of each element to the accumulator.

A(n) ____________ is similar to a two-dimensional array, but the rows can have a different number of columns.

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.

The only requirement for the binary search is that the values in the array must be sorted in ascending order.

In C#, all arrays have a(n) ____________ that is set to the number of elements in the array.

If you know the value of the item that you want to remove from a List, but you do not know the item's index, you can use the ____________.

Look at the following code sample: What value will the highest variable contain when the loop finishes?

A(n) ____________ is a special value that links a variable to an object.

List objects, like arrays, are always passed to a method ____________.

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

When you process a(n) ____________, you must process only the elements that contain valid items.

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