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C++ Objective Questions - Page-10

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Question: 180

A struct can contain members of various data types

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: structure
[Posted by: Andrew | New Jersey]

Question: 181

Structure variables may be passed as arguments to functions

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: structure
[Posted by: Andrew | New Jersey]

Question: 182

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

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: union
[Posted by: Andrew | New Jersey]

Question: 183

In the following structure declaration, idNum is:
Struct Employee
{
String name;
int idNum;
};

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

Compiler
Level: Beginner Category: structure
[Posted by: Andrew | New Jersey]

Question: 184

Which of the following statements 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 = 75.00;

Compiler
Level: Beginner Category: structure
[Posted by: Andrew | New Jersey]

Question: 185

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;

Compiler
Level: Beginner Category: structure
[Posted by: Andrew | New Jersey]

Question: 186

After the following statement executes, what value will the MAPLE enumerator be stored as, in memory?

enum Tree { OAK, MAPLE, PINE };

(A) MAPLE
(B) 2
(C) ‘M’
(D) 1

Compiler
Level: Beginner Category: enum
[Posted by: Andrew | New Jersey]

Question: 187

Data stored in RAM disappears once a program ends or the computer is powered down.

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: other
[Posted by: Andrew | New Jersey]

Question: 188

When you store data in a variable it is automatically saved in a file

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: datatype
[Posted by: Andrew | New Jersey]

Question: 189

By default, files are opened in binary mode

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 190

Which of the following statements opens a file and links it to a file stream object?

(A) file.open(“c:filename.txt”);
(B) open(afile) = link(anObject);
(C) linkstream(“filenemae.txt”)
(D) link(open(filename.txt);

Compiler
Level: Practitioner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 191

Only one file stream object can be declared per C++ program

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 192

Which member function writes a single character to a file?

(A) get
(B) write
(C) put
(D) insert

Compiler
Level: Beginner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 193

Closing a file causes any unsaved information still held in the file buffer to be saved to the file.

(A) TRUE
(B) FALSE

Compiler
Level: Expert Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 194

The end-of-file marker is automatically written when a file is closed

(A) TRUE
(B) FALSE

Compiler
Level: Practitioner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 195

When a file is opened by the program, the file stream object’s “read position” is

(A) At the end of the file
(B) At the beginning of the file
(C) Nonexistent until the program declares it
(D) There is no read position

Compiler
Level: Practitioner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 196

Objects in C++ are created from abstract data types that encapsulate data and functions together

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 197

The public access specifier is used to protect important data

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: inheritance
[Posted by: Andrew | New Jersey]

Question: 198

A C++ class is almost similar to a structure

(A) True
(B) False

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 199

C++ Class declarations should never be stored in their own header file

(A) True
(B) False

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 200

Assume that Honda is an instance of the Car class,
and that Car class has a member function named run.
Which of the following is a correct call to the run function?

(A) Honda->run;
(B) Honda.run();
(C) run()
(D) Honda()

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

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