Deck 11: Structured Data

Question 1

Look at the following statement.
This statement ________.

A)is illegal in C++
B)will change the publisher's name of the second book in bookList to 't'
C)will store the character 't' in the fourth element of the publisher member of booklist[2]
D)will ultimately result in a runtime error
E)None of these

Answer 1

will store the character 't' in the fourth element of the publisher member of booklist[2]

Question 2

If Circle is a structure tag, the statement:
Can be the header line for a function that ________.

A)determines and returns the area of a circle
B)takes a Circle structure as a parameter, does something, and returns a Circle structure
C)operates on a constant reference to a Circle structure
D)takes two Circle parameters and does something
E)None of these

Answer 2

takes a Circle structure as a parameter, does something, and returns a Circle structure

Question 3

A function ________ return a structure.

A)may
B)may not
C)will always
D)cannot possibly
E)None of these

Answer 3

may

Question 4

This allows you to access structure members.

A)structure access operator
B)dot operator
C)#include directive
D)getmember function
E)None of these

Question 5

You may use a pointer to a structure as a ________.

A)function parameter
B)structure member
C)function return type
D)All of these
E)None of these

Question 6

This describes only the general characteristics of an object.

A)initialization
B)abstraction
C)detailed specification
D)initiation
E)None of these

Question 7

Which of the following assigns a value to the hourlyWage member of employee[2]?

A)employee[2]->hourlyWage = 50.00;
B)employee2.hourlyWage = 7.50;
C)hourlyWage[2].employee = 29.75
D)employee[2].hourlyWage = 100.00;
E)None of these

Question 8

When a structure is passed ________ to a function, its members are not copied.

A)by reference
B)by value
C)Neither of these

Question 9

The name of the structure is referred to as its ________.

A)data type
B)argument
C)parameter
D)tag
E)None of these

Question 10

Data types that are created by the programmer are known as ________.

A)variables
B)abstract data types (ADT)
C)functions
D)parameters
E)None of these

Question 11

A structure pointer contains ________.

A)the address of a structure variable
B)the dereferenced address of a structure tag
C)the name and address of the structure tag
D)the address of a structure tag
E)None of these

Question 12

Members of a(n)________ union have names, but the union itself has no name.

A)anonymous
B)dereferenced
C)organized
D)declared
E)None of these

Question 13

Passing a structure as a constant reference parameter to a function ________.

A)can potentially result in changes to the structure's members
B)guarantees not to result in changes to the structure's members
C)will always change the structure's members
D)All of these
E)None of these

Question 14

If a is a structure variable and p, a pointer, is a member of the structure, what will the following statement do?

A)Output the dereferenced value pointed to by p.
B)Result in a compiler error.
C)Output the address stored in p.
D)Output the value stored in a.
E)None of these

Question 15

Which of the following is an example of a C++ primitive data type?

A)unsigned short int
B)long double
C)unsigned char
D)All of these
E)None of these

Question 16

This is required after the closing brace of the structure declaration.

A)square bracket
B)period
C)semicolon
D)colon
E)None of these

Question 17

This is like a structure, except all members occupy the same memory area.

A)array
B)union
C)structure pointer
D)array of pointers
E)None of these

Question 18

If an anonymous union is declared globally (outside all functions), it must be ________.

A)empty
B)declared static
C)explicitly declared "global"
D)initialized and used outside any function
E)None of these

Question 19

Before a structure can be used, it must be ________.

A)declared
B)dereferenced
C)initialized
D)All of these
E)None of these

Question 20

To dereference a structure pointer, the appropriate operator is ________.

A)the ampersand, &
B)an asterisk, *
C)the structure pointer operator, ->
D)the dereference operator, <-
E)None of these

Question 21

The expression s->m; indicates that s is a structure pointer and m is a structure member.

Question 22

Structure variables may be passed as arguments to functions.

Question 23

The structure pointer operator is used to dereference a pointer to a structure, not a pointer that is a member of a structure.

Question 24

A struct can contain members with varying data types.

Question 25

You can define any number of union variables, but each variable can only store the value of one member at a time.

Question 26

Look at the following declaration.
In memory, what value will the MAPLE enumerator be stored as?

A)"MAPLE"
B)2
C)'M'
D)1
E)1.0

Question 27

If Circle is a structure, the statement:

A)declares an empty structure variable called *pcirc
B)declares a structure pointer called pcirc initialized with a null pointer
C)is illegal in C++
D)initializes a null pointer with the value of the Circle pointer
E)None of these

Question 28

Which of the following statements outputs the value of the gpa member of element 1 of the student array?

A)cout << student1.gpa;
B)cout << firstStudent.gpa;
C)cout << student[1].gpa;
D)cout << student1->gpa;
E)None of these

Question 29

If a function is legally prototyped to return an integer value, it can return a structure member that is an integer data type.

Question 30

With an enumerated data type, the enumerators are stored in memory as ________.

A)strings
B)integers
C)characters
D)doubles

Question 31

Look at the following structure declaration. struct
In this declaration, idNum is:

A)a member
B)an array
C)a tag
D)None of these

Question 32

Look at the following structure declaration.

In this declaration, Employee is:

A)a member
B)an array
C)a tag
D)None of these

Question 33

Look at the following declaration.
What is the value of the following relational expression?
OAK > PINE

A)true
B)false
C)This is an error. You cannot compare enumerators with relational operators.

Question 34

A good reason to pass a structure as a constant reference is ________.

A)to prevent changes to the structure members
B)to ensure changes to the structure members
C)to slow down the function's execution, preventing errors
D)to speed up the function's modification of the structure members
E)None of these

Question 35

In C++ 11 you can use a new type of enum, known as a(n)________, (also known as an enum class)to have multiple enumerators with the same name, within the same scope.

A)universal enum
B)auto enum
C)multi-cast enum
D)strongly typed enum
E)None of these

Question 36

Any mathematical operations that can be performed on regular C++ variables can be performed on structure members.

Question 37

A structure ________ contain members of the same data type.

A)cannot
B)can
C)shouldn't
D)None of these

Question 38

A function cannot modify the members of a structure.

Question 39

When a programmer creates an abstract data type, he or she can decide what values are acceptable for the data type, as well as what operations may be performed on the data type.

Question 40

A declaration for an enumerated type begins with the ________ key word.

A)enumerated
B)enum_type
C)enum
D)ENUM

Question 41

A union can only have one member.

Question 42

The names of the enumerators in an enumerated data type must be enclosed in quotation marks.

Question 43

Look at the following structure declaration.

Question 44

You cannot directly assign an enumerator to an int variable.

Question 45

An anonymous union declaration actually creates the member variables in memory.

Question 46

It is possible to output the contents of all members of a structure variable using a cout << statement followed by the name of the structure variable.

Question 47

It is possible for a structure variable to be a member of another structure variable.

Question 48

It is possible for a structure to contain as a member a pointer to its own structure type.

Question 49

In C++ 11, if you want to retrieve a strongly typed enumerator's underlying integer value, you must use a cast operator.

Question 50

The following union declaration appears on a system uses 4-byte ints and 8-byte doubles.

Question 51

You cannot directly assign an integer value to an enum variable.

Question 52

The expression *s->p; indicates that s is a structure pointer and p, which is also a pointer, is a member of the structure pointed to by s.

Question 53

When you use a strongly typed enumerator in C++ 11, you must prefix the enumerator with the name of the enum, followed by the :: operator.