Problem Solving With Decisions And Looping Quiz

1. The following are the kinds of loops, EXCEPT __________.

For

IF/Then/ Else

While

Do-while

The given options list different types of loops, including "for," "while," and "do-while." However, "IF/Then/Else" is not a type of loop but a conditional statement used for decision-making in programming. It is used to execute a block of code if a certain condition is true, otherwise, it executes a different block of code. Therefore, the correct answer is "IF/Then/Else" as it is not a kind of loop.

Explanation

The given options list different types of loops, including "for," "while," and "do-while." However, "IF/Then/Else" is not a type of loop but a conditional statement used for decision-making in programming. It is used to execute a block of code if a certain condition is true, otherwise, it executes a different block of code. Therefore, the correct answer is "IF/Then/Else" as it is not a kind of loop.

2. I++ is similar to __________.

I = i - 1

I = i / 1

I = i + 1

I = i * 1

The correct answer is i = i + 1 because the "++" operator is known as the increment operator in programming. It increases the value of i by 1. Therefore, i++ is equivalent to i = i + 1.

Explanation

The correct answer is i = i + 1 because the "++" operator is known as the increment operator in programming. It increases the value of i by 1. Therefore, i++ is equivalent to i = i + 1.

3. Decision logic structure use IF/Then/Else.

True

False

Decision logic structures use IF/Then/Else statements to determine the flow of a program based on certain conditions. These structures allow the program to make decisions and execute different sets of instructions depending on whether a condition is true or false. By using IF statements, the program can evaluate a condition and then execute a specific set of instructions if the condition is true. If the condition is false, the program can also execute a different set of instructions using the Else statement. Therefore, the statement "Decision logic structures use IF/Then/Else" is true.

Explanation

Decision logic structures use IF/Then/Else statements to determine the flow of a program based on certain conditions. These structures allow the program to make decisions and execute different sets of instructions depending on whether a condition is true or false. By using IF statements, the program can evaluate a condition and then execute a specific set of instructions if the condition is true. If the condition is false, the program can also execute a different set of instructions using the Else statement. Therefore, the statement "Decision logic structures use IF/Then/Else" is true.

4. The programmer will use do-while to repeat the lines of code at least one-time execution.

True

False

A do-while loop is a type of loop in programming that executes a block of code at least once, regardless of the condition being true or false. This is because the condition is checked at the end of the loop. Therefore, the statement that the programmer will use a do-while loop to repeat the lines of code at least one-time execution is true.

Explanation

A do-while loop is a type of loop in programming that executes a block of code at least once, regardless of the condition being true or false. This is because the condition is checked at the end of the loop. Therefore, the statement that the programmer will use a do-while loop to repeat the lines of code at least one-time execution is true.

5. Which flowchart symbol is used for decision or condition?

Option 1

Option 2

Option 3

Option 4

The flowchart symbol used for decision or condition is represented by Option 1. This symbol typically takes the form of a diamond shape with two branches, one for the "yes" condition and one for the "no" condition. It is used to represent a point in the flowchart where a decision needs to be made based on a certain condition or criteria.

Explanation

The flowchart symbol used for decision or condition is represented by Option 1. This symbol typically takes the form of a diamond shape with two branches, one for the "yes" condition and one for the "no" condition. It is used to represent a point in the flowchart where a decision needs to be made based on a certain condition or criteria.

6. A programmer uses positive logic when he is telling the computer to follow a set of instructions and continue processing if the condition is True; If the condition is not True, then the computer processes another decision.

True

False

Positive logic is a programming approach where the computer follows a set of instructions and continues processing if a given condition is true. If the condition is not true, the computer proceeds with another decision. Therefore, the given statement accurately describes positive logic, making the answer "True" correct.

Explanation

Positive logic is a programming approach where the computer follows a set of instructions and continues processing if a given condition is true. If the condition is not true, the computer proceeds with another decision. Therefore, the given statement accurately describes positive logic, making the answer "True" correct.

7. A programmer will use __________ to execute the lines of code repeatedly.

Sequence logic structure

Decision logic structure

Looping logic structure

Case logic structure

A programmer will use looping logic structure to execute the lines of code repeatedly. Looping allows the programmer to repeat a specific set of instructions multiple times until a certain condition is met. This is useful when there is a need to perform a task iteratively or when a certain code block needs to be executed a fixed number of times. By using looping logic structure, the programmer can save time and effort by automating repetitive tasks and making the code more efficient.

Explanation

A programmer will use looping logic structure to execute the lines of code repeatedly. Looping allows the programmer to repeat a specific set of instructions multiple times until a certain condition is met. This is useful when there is a need to perform a task iteratively or when a certain code block needs to be executed a fixed number of times. By using looping logic structure, the programmer can save time and effort by automating repetitive tasks and making the code more efficient.

8. Multiple conditions have ______ kinds of logic.

1

2

3

4

Multiple conditions have three kinds of logic.

Explanation

Multiple conditions have three kinds of logic.

9. Which is the right syntax for the while loop?

while pizza <= 5 cout << "text";

WHILE pizza <= 5 { cout << "text"; }

While (pizza <= 5) { cout << "text"; }

While pizza <= 5) { cout << "text"; }

The correct syntax for a while loop is "while (condition) { code }". In this case, the condition is "pizza

Explanation

The correct syntax for a while loop is "while (condition) { code }". In this case, the condition is "pizza

10. The following are the kinds of multiple conditions, EXCEPT __________.

Straight-through logic

Positive logic

Negative logic

Question logic

The given answer suggests that "question logic" is not a kind of multiple condition. This implies that "question logic" does not fall under the category of different types of conditions such as straight-through logic, positive logic, and negative logic. However, without further context or information, it is difficult to provide a more detailed explanation.

Explanation

The given answer suggests that "question logic" is not a kind of multiple condition. This implies that "question logic" does not fall under the category of different types of conditions such as straight-through logic, positive logic, and negative logic. However, without further context or information, it is difficult to provide a more detailed explanation.

11. How many types of conditions are there in problem-solving?

1

2

3

4

There are two types of conditions in problem-solving.

Explanation

There are two types of conditions in problem-solving.

12. A programmer will use __________ when all decisions have to be processed and when they are independent of each other.

Straight-through logic

Positive logic

Negative logic

Question logic

A programmer will use straight-through logic when all decisions have to be processed and when they are independent of each other. This means that the program will simply execute each decision in a linear manner, without any branching or conditional statements. This approach is suitable when all decisions need to be processed regardless of their outcomes, and when the decisions do not affect each other's execution.

Explanation

A programmer will use straight-through logic when all decisions have to be processed and when they are independent of each other. This means that the program will simply execute each decision in a linear manner, without any branching or conditional statements. This approach is suitable when all decisions need to be processed regardless of their outcomes, and when the decisions do not affect each other's execution.

13. A programmer will use __________ to decide whether the set of instructions is to be executed based on the condition whether it is TRUE or FALSE.

Sequence logic structure

Decision logic structure

Looping logic structure

Case logic structure

A programmer will use the decision logic structure to decide whether the set of instructions is to be executed based on the condition whether it is TRUE or FALSE. This structure allows the programmer to control the flow of the program by evaluating a condition and executing different blocks of code based on the result. It is commonly used in programming languages to implement if-else statements and switch statements, which help in making decisions and performing different actions based on the conditions provided.

Explanation

A programmer will use the decision logic structure to decide whether the set of instructions is to be executed based on the condition whether it is TRUE or FALSE. This structure allows the programmer to control the flow of the program by evaluating a condition and executing different blocks of code based on the result. It is commonly used in programming languages to implement if-else statements and switch statements, which help in making decisions and performing different actions based on the conditions provided.

14. __________ occurs when a module or a function calls itself.

Increment

Accumulation

Recursion

Indicator

Recursion occurs when a module or a function calls itself. It is a programming technique that allows a problem to be solved by breaking it down into smaller subproblems of the same type. This can lead to elegant and concise code, as well as efficient problem-solving. Recursion is commonly used in algorithms such as tree traversal, searching, and sorting. By calling itself, a function can repeatedly solve smaller versions of the problem until a base case is reached, which terminates the recursion.

Explanation

Recursion occurs when a module or a function calls itself. It is a programming technique that allows a problem to be solved by breaking it down into smaller subproblems of the same type. This can lead to elegant and concise code, as well as efficient problem-solving. Recursion is commonly used in algorithms such as tree traversal, searching, and sorting. By calling itself, a function can repeatedly solve smaller versions of the problem until a base case is reached, which terminates the recursion.

15. Fill in the blanks to check if the age variable is greater than 18: int age = 25; _____ (_____> 18) { cout << "Adult"; }

The if statement is used to check a condition, in this case whether the age variable is greater than 18. The variable "age" is being checked to see if it is greater than 18, and if it is, the statement "Adult" will be printed.

Explanation

The if statement is used to check a condition, in this case whether the age variable is greater than 18. The variable "age" is being checked to see if it is greater than 18, and if it is, the statement "Adult" will be printed.

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16. __________ are logical variables that a programmer sets within a program to change the processing path or to control when the processing of a loop should end.

Indicators

Recursions

Increments

Accumulations

Indicators are logical variables that a programmer sets within a program to change the processing path or to control when the processing of a loop should end. These variables act as flags and can be used to determine whether a certain condition has been met or not. By setting and checking the values of indicators, programmers can alter the flow of the program and make decisions based on the state of these variables. This allows for more flexible and dynamic control over the execution of the program.

Explanation

Indicators are logical variables that a programmer sets within a program to change the processing path or to control when the processing of a loop should end. These variables act as flags and can be used to determine whether a certain condition has been met or not. By setting and checking the values of indicators, programmers can alter the flow of the program and make decisions based on the state of these variables. This allows for more flexible and dynamic control over the execution of the program.

17. A single condition has __________ or __________.

Actions

Codes

Set of instructions

Cases

A single condition can have a set of actions or a set of instructions associated with it. This means that when the condition is met, either a series of actions or a set of instructions will be executed. The actions or instructions can vary depending on the specific condition and the desired outcome.

Explanation

A single condition can have a set of actions or a set of instructions associated with it. This means that when the condition is met, either a series of actions or a set of instructions will be executed. The actions or instructions can vary depending on the specific condition and the desired outcome.

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18. A programmer will use __________ to tell the computer to process another decision when the resultant of the condition is True; If the resultant is False, then the computer processes a consequent set of instructions and continues processing the module.

Straight-through logic

Positive logic

Negative logic

Question logic

A programmer will use negative logic to tell the computer to process another decision when the resultant of the condition is False. If the resultant is True, then the computer processes a consequent set of instructions and continues processing the module. Negative logic involves using a logical NOT operator to invert the condition, so that when the condition is False, it becomes True and vice versa. This allows the programmer to control the flow of the program based on the opposite of the condition's outcome.

Explanation

A programmer will use negative logic to tell the computer to process another decision when the resultant of the condition is False. If the resultant is True, then the computer processes a consequent set of instructions and continues processing the module. Negative logic involves using a logical NOT operator to invert the condition, so that when the condition is False, it becomes True and vice versa. This allows the programmer to control the flow of the program based on the opposite of the condition's outcome.

19. Fill in the blanks to print x's values from 1 to 5. Increment x's value using the ++ operator.

int x = 1;
_____
(x <= 5) {
cout << x << endl;
x_____;
}

The code uses a while loop to print the values of x from 1 to 5. The condition for the while loop is that x is less than or equal to 5. Inside the loop, the value of x is printed using cout, and then x is incremented using the ++ operator. This means that x will increase by 1 in each iteration of the loop.

Explanation

The code uses a while loop to print the values of x from 1 to 5. The condition for the while loop is that x is less than or equal to 5. Inside the loop, the value of x is printed using cout, and then x is incremented using the ++ operator. This means that x will increase by 1 in each iteration of the loop.

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20. Fill in the blanks to print x's values to the screen 10 times: _____ (int x = 1; x <= 10; _____ ++) { cout << x << endl; }

The correct answer is "for, x" because the question is asking for the missing elements in the code to print the value of x to the screen 10 times. The "for" loop is used to iterate over a block of code a specific number of times, and "x" is the variable that is being incremented each time the loop runs. This allows the code to print the value of x to the screen and continue looping until x reaches 10.

Explanation

The correct answer is "for, x" because the question is asking for the missing elements in the code to print the value of x to the screen 10 times. The "for" loop is used to iterate over a block of code a specific number of times, and "x" is the variable that is being incremented each time the loop runs. This allows the code to print the value of x to the screen and continue looping until x reaches 10.

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