Chapter 4 (Decision Structures and Boolean Logic)

Questão	Responda
A _____ structure can execute a set of statements only under certain circumstances.	Decision (Selection)
A _____ structure provides one alternative path of execution. If the condition that is being tested is true, the program takes the alternative path.	Single Alternative Decision
In pseudocode, the "If-Then" statement is an example of a _____.	Decision Structure (Selection Structure)
A _____ expression has a value of either true or false.	Boolean
The symbols >, <, and == are all _____ operators.	Relational
A _____ structure tests a condition and then takes one path if the condition is true, or another path if the condition is false.	Dual Alternative Decision
You use an _____ statement in pseudocode to write a single alternative decision structure.	If-Then
You use an _____ statement in pseudocode to write a dual alternative decision structure.	If-Then-Else
A _____ structure allows you to test the value of a variable or an expression and then use that value to determine which statement or set of statements to execute.	Multiple Alternative Decision
A _____ section of a "Select Case" statement is branched to if none of the case values match the expression listed after the "Select" statement.	Default
AND, OR, and NOT are _____ operators. They are used to create complex Boolean expressions.	Logical
A compound Boolean expression created with the _____ operator is true only if both of its subexpressions are true.	AND
A compound Boolean expression created with the _____ operator is true if either of its subexpressions is true.	OR
The _____ operator takes a Boolean expression as its operand and reverses its logical value.	NOT
A _____ is a Boolean variable that signals when some condition exists in the program.	Flag
When the "If-Then" statement executes, the _____ is tested. If it is true, the statements that appear between the "If" clause and the "End If" clause are executed.	Condition
A logical design that controls the order in which a set of statements executes is a _____.	Control Structure
To test more than one condition, a decision structure can be _____ inside another decision structure.	Nested
The _____ lets the value of a variable or an expression determine which path of execution the program will take.	Case Structure
The case structure is a _____.	Multiple Alternative Decision Structure
What does the case structure test, in order to determine which set of statements to execute?	A variable or an expression.
You need to write a multiple alternative decision structure, but the language you are using will not allow you to perform the test you need in a "Select Case" statement. What can you do to achieve the same results?	You can use the "If-Then-Else If" statement, or a nested decision structure.
If an expression on the left side of an AND operator is false, the expression on the right side will not be checked. This is an example of _____.	Short-Circuit Evaluation
What is a compound Boolean expression?	It is an expression that is created by using a logical operator to combine two Boolean subexpressions.
If an expression on the left side of an OR operator is true, the expression on the right side will not be checked. This is an example of _____.	Short-Circuit Evaluation

Próximo

Chapter 4 (Decision Structures and Boolean Logic)

Descrição

Resumo de Recurso

Semelhante

	Criado por Andrew Lewis quase 4 anos atrás