Deck 9: Records Structs

Question 1

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

Answer 1

False

Question 2

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

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

Answer 2

D

Question 3

Consider the following statements: 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;

Answer 3

B

Question 4

An array name and index are separated using ____.

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

Question 5

A struct is typically a ____ data structure.

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

Question 6

Consider the following struct definition:Which of the following variable declarations is correct?

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

Question 7

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 8

A function can return a value of the type array.

Question 9

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 10

You can declare struct variables when you define a struct.

Question 11

The syntax for accessing a struct member is structVariableName____.

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

Question 12

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

Question 13

Relational operations can be used on struct variables.

Question 14

A function can return a value of the type struct.

Question 15

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

Question 16

Consider the following statements: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

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

Question 18

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

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

Question 19

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

Question 20

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 21

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

Question 22

Consider the following statements:struct studentType1 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 23

To compare struct variables, you compare them ____.

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

Question 24

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 25

Consider the following statements. 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 26

Consider the following statements: 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 27

Consider the following statements: 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 28

Arrays are passed by ____________________ only.

Question 29

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 30

The following statement defines a struct houseType with a total of ____________________ member(s).

Question 31

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

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

Question 32

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

Question 33

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

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

Question 34

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 35

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 36

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 37

Consider the following statements: 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

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

Question 39

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 40

Consider the following struct definition:The statement that declares intList to be a struct variable of type listType is ____________________.