Deck 3: Memory Locations and Calculations

Question 1

Unlike a variable's value, a named constant's value cannot be changed while the application is running.

Answer 1

True

Question 2

With implicit type conversions, data loss can occur when a value is converted from one data type to a narrower data type.

Answer 2

True

Question 3

Variables assigned the Integer, Long, or Short data type can store ____, which are whole numbers - positive or negative numbers without any decimal places.

A) logical values
B) text
C) floating-point numbers
D) integers

Answer 3

D

Question 4

Decimal, Double, and Single variables can store ____.

A) strings
B) integers
C) imaginary numbers
D) real numbers

Question 5

You use the ____ operator to divide two integers, and then return the result as an integer.

A) /
B) *
C) ^
D) \

Question 6

A variable's ____ indicates where the variable can be used in the application's code.

A) data type
B) scope
C) identifier
D) lifetime

Question 7

You can prevent many unintentional errors from occurring in an application by declaring the variables using the maximum scope needed.

Question 8

The ____ operators allow you to abbreviate an assignment statement that contains an arithmetic operator.

A) compound assignment
B) unary assignment
C) abbreviated assignment
D) arithmetic assignment

Question 9

When an expression contains more than one operator having the same priority, those operators are evaluated from right to left.

Question 10

____ constants are enclosed in quotation marks.

A) String literal
B) Floating-point character
C) Integer
D) Boolean value

Question 11

A ____ is an item of data whose value does not change during run time.

A) solid constant
B) firm constant
C) literal constant
D) logical constant

Question 12

You can use ____ to change the order in which the operators in an expression are evaluated.

A) square brackets
B) parentheses
C) quotation marks
D) pound signs

Question 13

After dividing two numbers, the ____ operator returns the remainder of the division.

A) negation
B) exponential
C) modulus
D) integer division

Question 14

A variable name must begin with a letter or a(n) ____.

A) colon ( : )
B) underscore ( _ )
C) ampersand ( & )
D) pound sign ( # )

Question 15

____ numbers indicate the order in which the computer performs the operation in an expression.

A) Precedence
B) Focus
C) Calculation
D) Order

Question 16

Real numbers are numbers that ____.

A) contain a decimal place
B) contain a place holder
C) are whole numbers
D) are Unicode numbers

Question 17

A(n) ____ is a computer memory location that a programmer uses to temporarily store data while an application is running.

A) variable
B) class
C) object
D) data type

Question 18

All of the Visual Basic numeric data types have a ____ method whose task is to convert a string to that particular data type.

A) ToLiteral
B) ConvertString
C) FromString
D) TryParse

Question 19

Most classes have one or more ____ that perform a specific task for the class.

A) identifiers
B) methods
C) variables
D) literal constants

Question 20

The number 500 and the string "Mary" are examples of literal constants.

Question 21

The process of locating and correcting the bugs in a program is referred to as ____________________.

Question 22

Programmers use ____ to document a procedure's purpose and also to explain various sections of a procedure's code to make the code more readable and easier to understand by anyone viewing it.

A) UML
B) external appendices
C) comments
D) variable names

Question 23

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
An error in the program's code.

Question 24

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
A data type that stores either True or False values.

Question 25

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
Indicates how long the variable remains in the computer's internal memory.

Question 26

The ____________________ indicates the type of data.for example, numeric or string.the memory location will store.

Question 27

When a value is converted from one data type to another data type that can store only smaller numbers, the value is said to be ____.

A) promoted
B) demoted
C) compressed
D) conducted

Question 28

The rectangles in a flowchart used to represent tasks such as making assignments and calculations are called ____ symbols.

A) input/output
B) flowline
C) process
D) content

Question 29

When a value is converted from one data type to another data type that can store larger numbers, the value is said to be ____.

A) promoted
B) demoted
C) expanded
D) conducted

Question 30

A(n) ____ string is a set of quotation marks with nothing between them.

A) short-length
B) literal
C) constant
D) empty

Question 31

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
Uses short phrases to describe the steps a procedure must take to accomplish its goal.

Question 32

You create a named constant using the ____________________ statement.

Question 33

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
Indicates where the variable can be used in the application's code.

Question 34

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
The universal coding scheme for characters.

Question 35

The method's ___________________ represent information that the method needs to perform its task.

Question 36

Specifying the number of decimal places and the special characters to display in a number is called ____.

A) converting
B) promoting
C) debugging
D) formatting

Question 37

A(n) ____________________ character forces a literal constant to assume a data type other than the one its form indicates.

Question 38

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
Data that the application is expecting the user to enter.

Question 39

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
Data that the application is not expecting the user to enter.

Question 40

Match each item with a statement below.
a.valid
f.scope
b.invalid
g.pseudocode
c.named constant
h.lifetime
d.Boolean
i.bug
e.Unicode
A memory location inside the computer whose value cannot be changed while the application is running.

Question 41

Why is it important to declare the memory locations used in an application?

Question 42

What is the difference between a logic error and a run time error?

Question 43

In Visual Basic, what can you do to flag any undeclared variables in your code?

Question 44

What are comments and how are they created?

Question 45

What is a static variable?

Question 46

What is a class-level variable?

Question 47

What is the difference between pseudocode and a flowchart?

Question 48

What is implicit conversion, when does data loss occur with implicit type conversions and how is it prevented?

Question 49

Why is it best to avoid using the Object data type?

Question 50

What is a procedure-level variable?