Deck 9: Records Structs

Question 1

The components of a struct are called the ____ of the struct.

A) variables
B) identifiers
C) elements
D) members

Answer 1

D

Question 2

Typically, in a program, a struct is defined ____ in the program.

A) in the main function
B) before the definitions of all the functions
C) after the definitions of all the functions
D) in any function

Answer 2

B

Question 3

A function can return a value of the type array.

Answer 3

False

Question 4

Which of the following struct definitions is correct in C++?

A) struct studentType

B) struct studentType

C) int struct studentType

D) struct studentType

Question 5

In structs, you access a component by using the struct name together with the relative position of the component.

Question 6

The syntax for accessing a struct member is structVariableName____.

A) .memberName
B) *memberName
C) [memberName]
D) $memberName

Question 7

Consider the following statements: personalInfo person1, person2;
CommonInfo person3, person4;
Which of the following statements is valid in C++?

A) person1 = person3;
B) person2 = person1;
C) person2 = person3;
D) person2 = person4;

Question 8

Aggregate input/output operations are allowed on a struct variable.

Question 9

Consider the following struct definition: struct rectangleData
{
Double length;
Double width;
Double area;
Double perimeter;
};
Which of the following variable declarations is correct?

A) rectangle rectangleData;
B) struct rectangleData();
C) rectangleData myRectangle;
D) rectangleData rectangle = new rectangleData();

Question 10

You can declare struct variables when you define a struct.

Question 11

An array name and index are separated using ____.

A) curly brackets
B) square brackets
C) a dot
D) a comma

Question 12

A function can return a value of the type struct.

Question 13

Relational operations can be used on struct variables.

Question 14

In C++, the ____ symbol is an operator, called the member access operator.

A) :(colon)
B) .(dot)
C) ,(comma)
D) $ (dollar sign)

Question 15

A struct is typically a ____ data structure.

A) simple
B) dynamic
C) heterogeneous
D) linked

Question 16

Data in a struct variable must be read one member at a time.

Question 17

To access a structure member (component), you use the struct variable name together with the member name; these names are separated by a dot (period).

Question 18

Consider the following statements: struct rectangleData
{
Double length;
Double width;
Double area;
Double perimeter;
};
RectangleData bigRect;
Which of the following statements correctly initializes the component length of bigRect?

A) bigRect = {10};
B) bigRect.length = 10;
C) length[0]= 10;
D) bigRect[0]= 10

Question 19

Consider the following statements: struct rectangleData
{
Double length;
Double width;
Double area;
Double perimeter;
};
RectangleData bigRect;
Which of the following statements is valid in C++?

A) cin >> bigRect;
B) cin >> bigRect.length;
C) perimeter = 2 * (length + width);
D) area = length * width;

Question 20

You can use an assignment statement to copy the contents of one struct into another struct of the same type.

Question 21

Consider the following function prototype: int seqSearch(const listType& list, int searchItem);
The actual parameter cannot be modified by ____.

A) seqSearch
B) listType
C) list
D) searchItem

Question 22

A struct variable can be passed as a parameter ____.

A) only by const
B) only by reference
C) only by value
D) either by value or by reference

Question 23

Memory is allocated for struct variables only when you ____________________ them.

Question 24

Consider the following statements. struct circleData
{
Double radius;
Double area;
Double circumference;
};
CircleData circle;
Which of the following statements is valid in C++?

A) cin >> circle.radius;
Circle.area = 3.14 * radius * radius;
B) cin >> circle.radius;
Circle.area = 3.14 * circle.radius * radius;
C) cin >> circle;
D) cin >> circle.radius;

Question 25

Consider the following statements: applianceType applianceList[25];
Which of the following best describes applianceList?

A) It is a multidimensional array.
B) It is a struct.
C) It is an array of structs.
D) It is a struct of arrays.

Question 26

If a variable is passed by ____________________, then when the formal parameter changes, the actual parameter also changes.

Question 27

Arrays are passed by ____________________ only.

Question 28

A list has two items associated with it: ____.

A) the length and the references
B) the values and the references
C) the indexes and the length
D) the values and the length

Question 29

Consider the following statements: paintType paint;
What is the data type of paint.supplier?

A) string
B) paintType
C) supplierType
D) struct

Question 30

You can assign the value of one struct variable to another struct variable of ____ type.

A) a simple data
B) the same
C) an array
D) any

Question 31

Which of the following aggregate operations can be executed on array variables?

A) Arithmetic
B) Assignment
C) Function returning a value
D) Parameter passing by reference

Question 32

Consider the following statements: struct rectangleData
{
Double length;
Double width;
Double area;
Double perimeter;
};
RectangleData bigRect;
RectangleData smallRect;
Which of the following statements is legal in C++?

A) if (bigRect == smallRect)
B) if (bigRect != smallRect)
C) if (bigRect.length == width)
D) if (bigRect.length == smallRect.width)

Question 33

Consider the following statements: applianceType applianceList[25];
Which of the following statements correctly initializes the cost of each appliance to 0?

A) applianceList.cost = 0;
B) applianceList.cost[25] = 0;
C) for (int j = 1; j < 25; j++)
ApplianceList.cost[j] = 0;
D) for (int j = 0; j < 25; j++)
ApplianceList.cost[j] = 0;

Question 34

Consider the following struct definition:
const int ARRAY_SIZE = 1000;
struct listType
{
int listElem[ARRAY_SIZE];
int listLength;
};
The statement that declares intList to be a struct variable of type listType is ____________________.

Question 35

A struct is a(n) ____________________, not a declaration.

Question 36

Which of the following is an allowable aggregate operation on a struct?

A) Arithmetic
B) Assignment
C) Input/output
D) Comparison

Question 37

The following statement defines a struct houseType with a total of ____________________ member(s).
struct houseType
{
string style;
int numOfBedrooms;
int numOfBathrooms;
int numOfCarsGarage;
int yearBuilt;
};

Question 38

Consider the following statements: studentType1 student1, student2;
Struct studentType2
StudentType2 student3, student4;
Which of the following statements is valid in C++?

A) student2 = student3;
B) student1 = student4;
C) student2.ID = ID;
D) student1.ID = student3.ID;

Question 39

Consider the following statements: struct rectangleData
{
Double length;
Double width;
Double area;
Double perimeter;
};
RectangleData bigRect;
Which of the following statements is valid in C++?

A) cin >> bigRect.length >> width;
B) cout << bigRect.length;
C) cout << bigRect;
D) cout << length;

Question 40

To compare struct variables, you compare them ____.

A) by reference
B) by value
C) index-wise
D) member-wise