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COSC 1315 Exam 2 (Chapters 4,5 & 10) Exam Questions and Answers
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COSC 1315 Exam 2 (Chapters 4,5 & 10) Exam Questions and Answers
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COSC 1315 Exam 2 (Chapters 4,5 & 10)Exam Questions and Answers
The ________ operator is a unary operator, as it works with only one operand. - Answer
-NOT
The ________ statement is commonly used in programming languages for case
structure. - Answer -switch
In languages such as Java, Python, C, and C++ the ________ operator determines
whether a variable is equal to another variable. - Answer -==
Which of the following is a logical operator? - Answer -All of the above ("OR", "NOT" &
"AND")
The computer uses the ________ codes to accomplish string comparison. - Answer -
ASCII
The ________ symbol is used to represent a selection structure in flowcharting. -
Answer -diamond
The ________ symbol indicates that some condition must be tested in a flowchart. -
Answer -diamond
True/False: A nested decision structure can achieve the same logic as a case structure.
- Answer -True
In an If-Then-Else statement, the Else clause marks the beginning of the statements to
be executed when the Boolean expression is ________. - Answer -false
A condition is a ________ expression. - Answer -boolean
When a program performs actions only under certain conditions, it is using a ________
structure. - Answer -decision
A case structure is a ________ alternative decision structure. - Answer -Multiple
True/False: The If-Then-Else statement can be used to simplify a complex nested
decision structure. - Answer -True
, What two logical operators perform short-circuit evaluation? - Answer -AND and OR
In many languages the case structure is called a ________ statement. - Answer -switch
Which operator is best to determine whether x contains a value in the range of 10
through 57? - Answer -AND
True/False: The If-Then-Else statement should be used to write a single alternative
decision structure. - Answer -False
True/False: The first line of the case structure starts with the word CASE followed by the
test expression. - Answer -False
If the expression is false, the ________ operator will return true. - Answer -NOT
True/False: Although the sequence structure is heavily used in programming, it cannot
handle every type of task. - Answer -True
The ________ decision structure provides only one alternative path of execution. -
Answer -single alternative
________ expressions are named in honor of mathematician George Boole. - Answer -
Boolean
The ________ operator could be used, in some situations, to simplify nested selection
structures. - Answer -AND
A(n) ________ expression evaluates as either true or false. - Answer -boolean
Consider the following statement:
A store is giving a discount of 30% for all purchases of over $100.
Which of the following is not the appropriate structure to use to program the statement?
- Answer -Sequence
Which of the following operators reverses the logic of its operand? - Answer -NOT
The value of the ________ is compared with the values that follow each of the Case
statements when a Select Case statement executes. - Answer -test expression
In a(n) ________ decision structure, one path is taken if a condition is true and the other
path is taken if the condition is false. - Answer -dual alternative
Some languages, such as Visual Basic, use ________ as the not equal to operator. -
Answer -<>
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