Deck 9: Records (structs)

Question 1

The contents of a struct variable must be written one member at a time.

Answer 1

True

Question 2

An array name and index are separated using ____.

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

Answer 2

B

Question 3

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();

Answer 3

C

Question 4

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

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

Question 5

Relational operations can be used on struct variables.

Question 6

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

Question 7

A struct is typically a ____ data structure.

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

Question 8

You can declare struct variables when you define a struct.

Question 9

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

A) struct studentType
{
Int ID;
};
B) struct studentType
{
String name;
Int ID;
Double gpa;
}
C) int struct studentType
{
ID;
}
D) struct studentType
{
Int ID = 1;
};

Question 10

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

Question 11

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

Question 12

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

Question 13

A function can return a value of the type struct.

Question 14

The syntax for accessing a struct member is structVariableName____.

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

Question 15

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

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

Question 16

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 17

A function can return a value of the type array.

Question 18

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

Question 19

You can use the assignment statement on structs.

Question 20

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 21

Consider the following statements: struct personalInfo
{
String name;
Int age;
Double height;
Double weight;
};
Struct commonInfo
{
String name;
Int age;
};
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 22

Both arrays and structs are examples of ____________________ data types.

Question 23

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 24

Consider the following statements: struct supplierType
{
String name;
Int supplierID;
};
Struct applianceType
{
SupplierType supplier;
String modelNo;
Double cost;
};
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 25

A(n)____________________ is a collection of a fixed number of components in which the components are accessed by name.

Question 26

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 27

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 28

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

Question 29

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 30

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 31

Consider the following statements: struct supplierType
{
String name;
Int supplierID;
};
Struct applianceType
{
SupplierType supplier;
String modelNo;
Double cost;
};
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 32

To compare struct variables,you compare them ____.

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

Question 33

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 34

Consider the following statements: struct studentType1
{
String name;
Int ID;
Double gpa;
};
StudentType1 student1,student2;
Struct studentType2
{
String name;
Int ID;
Double gpa;
};
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 35

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

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

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 38

Consider the following statements: struct supplierType
{
String name;
Int supplierID;
};
Struct paintType
{
SupplierType supplier;
String color;
String paintID;
};
PaintType paint;
What is the data type of paint.supplier?

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

Question 39

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 40

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 41

A(n)____________________ is a set of elements of the same type.

Question 42

Figure 1:
struct newStudent
{
string firstName;
string lastName;
string courseGrade;
int testScore;
int programmingScore;
};
int score;
Consider the accompanying struct definition in Figure 1.The statement ____________________ defines alumnus to be a struct variable of type newStudent.

Question 43

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

Question 44

Figure 1:
struct newStudent
{
string firstName;
string lastName;
string courseGrade;
int testScore;
int programmingScore;
};
int score;
Consider the accompanying struct definition.The statement that assigns the average of testScore and programmingScore to score is ____________________.

Question 45

Figure 1:
struct newStudent
{
string firstName;
string lastName;
string courseGrade;
int testScore;
int programmingScore;
};
int score;
Consider the accompanying struct definition in Figure 1.The statement that initializes the member testScore to 95 is ____________________.

Question 46

Arrays are passed by ____________________ only.

Question 47

In C++,struct is a(n)____________________ word.

Question 48

Figure 1:
struct newStudent
{
string firstName;
string lastName;
string courseGrade;
int testScore;
int programmingScore;
};
int score;
Consider the accompanying struct definition in Figure 1.The statement that initializes the member firstName to Melissa is ____________________.

Question 49

Figure 1:
struct newStudent
{
string firstName;
string lastName;
string courseGrade;
int testScore;
int programmingScore;
};
int score;
Consider the accompanying struct definition in Figure 1.The statement cout ____________________ outputs the variables firstName and lastName separated by one space.

Question 50

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 ____________________.