Question 1

What are the block of statements that are executed in a loop considered to be part of?

Accepted Answer

A)  a loop body 
B)  an iteration block 
C)  the loop header 
D)  the loop block 
A)  a loop body 
B)  an iteration block 
C)  the loop header 
D)  the loop block A

Question 2

What is a garbage value in the C# programming language?

Accepted Answer

A)  It is an unknown, unassigned value. 
B)  It is a variable that is assigned a value that has no purpose. 
C)  It is a variable that is used as a placeholder. 
D)  It is a variable that holds output text after it is displayed. 
A)  It is an unknown, unassigned value. 
B)  It is a variable that is assigned a value that has no purpose. 
C)  It is a variable that is used as a placeholder. 
D)  It is a variable that holds output text after it is displayed. A

Question 3

Why is it important to initialize an accumulator variable?

Accepted Answer

Assume you have an accumulator variable called total.It is very important that total is initialized to 0.When it is not, the program will not compile.When total is not initialized, it might hold any value.The value could be 0 by chance, but it also could be any other value that happens to be located at the memory address of total.An unknown value is known as garbage.The C# compiler prevents you from seeing an incorrect total by requiring you to provide a starting value; C# will not use the garbage value that happens to be stored at an uninitialized memory location.

Question 4

When using nested loops, what loop is contained entirely within an outer loop?

Accepted Answer

A)  posttest loop 
B)  pretest loop 
C)  inner loop 
D)  for loop 
A)  posttest loop 
B)  pretest loop 
C)  inner loop 
D)  for loop

Question 5

A value such as a 'Y' or 'N' that must be supplied in order to stop a loop is known as what type of value?

Accepted Answer

A)  control value 
B)  sentinel value 
C)  stop value 
D)  switch value 
A)  control value 
B)  sentinel value 
C)  stop value 
D)  switch value

Question 6

Write two code segments that print the integers 1 through 10.One segment should use a while loop and the other should use a for loop.

Accepted Answer

// Declare loop control variable and lim

Question 7

Statements in a while loop or for loop body can be blocked.Write a for loop that displays Hello and Goodbye four times each using a blocked loop body.

Accepted Answer

The following loop displays Hello and Go

Question 8

You are writing a program that defines a variable within a loop, and then tries to use that variable outside the loop.However, the program does not run as intended.What is the issue?

Accepted Answer

A)  The variable is being overwritten inside the loop. 
B)  The variable is declared with an incorrect type. 
C)  The variable is limited to the scope of the loop. 
D)  The variable name conflicts with a built in keyword. 
A)  The variable is being overwritten inside the loop. 
B)  The variable is declared with an incorrect type. 
C)  The variable is limited to the scope of the loop. 
D)  The variable name conflicts with a built in keyword.

Question 9

A loop that is controlled by user input rather than altered by arithmetic is known as what type of loop?

Accepted Answer

A)  definite 
B)  indefinite 
C)  sentinel 
D)  infinite 
A)  definite 
B)  indefinite 
C)  sentinel 
D)  infinite

Question 10

What keyword(s) should you use to initiate a for-loop in C#?

Accepted Answer

A)  while 
B)  do 
C)  repeat each 
D)  for 
A)  while 
B)  do 
C)  repeat each 
D)  for

Question 11

When writing a while loop, how can you ensure that it will end correctly?

Accepted Answer

To make a while loop end correctly, thre

Question 12

Loops that are controlled by reducing a variable are utilizing what type of loop control variable?

Accepted Answer

A)  incrementing 
B)  comparing 
C)  decrementing 
D)  expanding 
A)  incrementing 
B)  comparing 
C)  decrementing 
D)  expanding

Question 13

Why do event-driven GUI programs sometimes require fewer coded loops than their counterpart console applications?

Accepted Answer

A)  Some events are determined by the user's actions when the program is running. 
B)  GUI programs have better loop performance and can benefit more from loop fusion. 
C)  A GUI's properties removes the need for some loops. 
D)  A GUI program can utilize loop nesting, while a console program cannot. 
A)  Some events are determined by the user's actions when the program is running. 
B)  GUI programs have better loop performance and can benefit more from loop fusion. 
C)  A GUI's properties removes the need for some loops. 
D)  A GUI program can utilize loop nesting, while a console program cannot.

Question 14

Suppose a loop should execute while x is less than the sum of two integers, a and b.The loop could be written as:
while(x < a + b)
// loop body
Although this code fragment will run, it is not particularly efficient.In what way is it inefficient, and how could you improve the loop's performance?

Accepted Answer

You can improve performance by making su

Question 15

A bug has resulted in your program executing an infinite loop.What key can be pressed in conjunction with the C or Break (Pause) key to escape the loop?

Accepted Answer

A)  Esc 
B)  Ctrl 
C)  Shift 
D)  Alt 
A)  Esc 
B)  Ctrl 
C)  Shift 
D)  Alt

Question 16

What is any single execution of a loop referred to as?

Accepted Answer

A)  A lap of the loop. 
B)  An iteration of the loop. 
C)  A path through the loop. 
D)  A round in the loop. 
A)  A lap of the loop. 
B)  An iteration of the loop. 
C)  A path through the loop. 
D)  A round in the loop.

Question 17

Totals that are summed one at a time in a loop are known as what type of totals?

Accepted Answer

A)  decremented 
B)  incremented 
C)  derived 
D)  accumulated 
A)  decremented 
B)  incremented 
C)  derived 
D)  accumulated

Question 18

When a loop might execute many times, it becomes increasingly important to consider the number of evaluations that take place.How can considering the order of evaluation of short-circuit operators affect the performance of a loop?

Accepted Answer

The expressions in each part of an AND o

Question 19

When using a nested loop, what should always be thought of as the all-encompassing loop?

Accepted Answer

A)  inner loop 
B)  outer loop 
C)  while loop 
D)  for loop 
A)  inner loop 
B)  outer loop 
C)  while loop 
D)  for loop

Question 20

What type of loop checks a Boolean expression at the "top" of the loop before the body has a chance to execute?

Accepted Answer

A)  do 
B)  repeat 
C)  switch 
D)  while 
A)  do 
B)  repeat 
C)  switch 
D)  while

What are the block of statements that are executed in a loop considered to be part of?

What is a garbage value in the C# programming language?

Why is it important to initialize an accumulator variable?

When using nested loops, what loop is contained entirely within an outer loop?

A value such as a 'Y' or 'N' that must be supplied in order to stop a loop is known as what type of value?

Write two code segments that print the integers 1 through 10.One segment should use a while loop and the other should use a for loop.

Statements in a while loop or for loop body can be blocked.Write a for loop that displays Hello and Goodbye four times each using a blocked loop body.

You are writing a program that defines a variable within a loop, and then tries to use that variable outside the loop.However, the program does not run as intended.What is the issue?

A loop that is controlled by user input rather than altered by arithmetic is known as what type of loop?

What keyword(s) should you use to initiate a for-loop in C#?

When writing a while loop, how can you ensure that it will end correctly?

Loops that are controlled by reducing a variable are utilizing what type of loop control variable?

Why do event-driven GUI programs sometimes require fewer coded loops than their counterpart console applications?

Suppose a loop should execute while x is less than the sum of two integers, a and b.The loop could be written as: while(x < a + b) // loop body Although this code fragment will run, it is not particularly efficient.In what way is it inefficient, and how could you improve the loop's performance?

A bug has resulted in your program executing an infinite loop.What key can be pressed in conjunction with the C or Break (Pause) key to escape the loop?

What is any single execution of a loop referred to as?

Totals that are summed one at a time in a loop are known as what type of totals?

When a loop might execute many times, it becomes increasingly important to consider the number of evaluations that take place.How can considering the order of evaluation of short-circuit operators affect the performance of a loop?

When using a nested loop, what should always be thought of as the all-encompassing loop?

What type of loop checks a Boolean expression at the "top" of the loop before the body has a chance to execute?

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Introduction to Inheritance

Exception Handling

Using Controls

Handling Events

Files and Streams

Making Decisions

Filters

Exam 5: Looping

What are the block of statements that are executed in a loop considered to be part of?

What is a garbage value in the C# programming language?

Why is it important to initialize an accumulator variable?

When using nested loops, what loop is contained entirely within an outer loop?

A value such as a 'Y' or 'N' that must be supplied in order to stop a loop is known as what type of value?

Write two code segments that print the integers 1 through 10.One segment should use a while loop and the other should use a for loop.

Statements in a while loop or for loop body can be blocked.Write a for loop that displays Hello and Goodbye four times each using a blocked loop body.

You are writing a program that defines a variable within a loop, and then tries to use that variable outside the loop.However, the program does not run as intended.What is the issue?

A loop that is controlled by user input rather than altered by arithmetic is known as what type of loop?

What keyword(s) should you use to initiate a for-loop in C#?

When writing a while loop, how can you ensure that it will end correctly?

Loops that are controlled by reducing a variable are utilizing what type of loop control variable?

Why do event-driven GUI programs sometimes require fewer coded loops than their counterpart console applications?

Suppose a loop should execute while x is less than the sum of two integers, a and b.The loop could be written as: while(x < a + b) // loop body Although this code fragment will run, it is not particularly efficient.In what way is it inefficient, and how could you improve the loop's performance?

A bug has resulted in your program executing an infinite loop.What key can be pressed in conjunction with the C or Break (Pause) key to escape the loop?

What is any single execution of a loop referred to as?

Totals that are summed one at a time in a loop are known as what type of totals?

When a loop might execute many times, it becomes increasingly important to consider the number of evaluations that take place.How can considering the order of evaluation of short-circuit operators affect the performance of a loop?

When using a nested loop, what should always be thought of as the all-encompassing loop?

What type of loop checks a Boolean expression at the "top" of the loop before the body has a chance to execute?

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Introduction to Inheritance

Exception Handling

Using Controls

Handling Events

Files and Streams

Making Decisions

Filters