Modified Cpp

7/30/2019 Modified Cpp

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Question1Marks: 1

Identify the built in data types

Choose one answer.

a. All the options

b. char

c. int

d. float

CorrectMarks for this submission: 1/1.

Question2Marks: 1

The fol5ing program fragmentint i=10;void main()int i=20;{int i=30;cout


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cout


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a. Looping statement

b. Execution error

c. Data declaration

d. Program bug

IncorrectMarks for this submission: 0/1.

Question6Marks: 1

namespaces are used to

Choose one answer.

a. define new scope

b. declare variable

c. define classes and functions

d. use the variables which defined in other cpp files


Question7Marks: 1

the statementsint a=5;cout


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Question8Marks: 1

Which of the following statements are true with respect to the use of friend function?

Choose one answer.

a. a private data member can be declared as a friend.

b. friend function can be accessed with help of object.

c. friend function can access private data of one or more

classes.

d. friend function must be declared in public section.


Question9Marks: 1

#includeclass Base{protected: int x;public: Base(int a) : x(a) {}void showBase(){std::cout


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Choose one answer.

a. 101 , 202

b. None

c. Error

d. 101 , Garbage Value


Question10Marks: 1

Which of the following options are true about inheritance?

Choose one answer.

a. When deriving from a public base class, the public members

become public members of the derived class

b. When deriving from a protected base class, public members

become protected members of the derived class

c. When deriving from a private base class, protected, private,and public members become private members of the derived

class

d. All the options


Question11Marks: 1

Let's say that you want to define a member function called walk in a class calledtransport. Which line of code would you use to begin the definition?

Choose one answer.

a. void transport(walk) (void);

b. void walk :: transport (void);

c. void transport :: walk (void);


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d. void walk(transport) (void);


Question12

Marks: 1

Space allocated by new can also be deallocated by free()

Choose one answer.

a. FALSE

b. TRUE


Question13Marks: 1

inline functions defined in one file cannot be used in another file

Choose one answer.

a. FALSE

b. True


Question14Marks: 1

When a Class Will be Loaded in the Memory

Choose one answer.

a. On the first Use of the class

b. At Compile Time

c. At Linking Time

d. At Run Time



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Question15Marks: 1

Which of the following decides, if a function that is declared inline is indeed going to betreated inline in the executable code?

Choose one answer.

a. Loader

b. Compiler

c. Linker

d. Preprocessor

Incorrect

Marks for this submission: 0/1.

Question16Marks: 1

Which keyword is used to over load an operator?

Choose one answer.

a. operator

b. class

c. static

d. public


Question17Marks: 1

Which of the fol5ing mode parameters moves to the end of a file when the file isopened?

Choose one answer.

a. ios::ate

b. ios::eof


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c. ios::trunc

d. ios::end

Incorrect


Question18Marks: 1

Which operator can you use to access public static class members through any objectof that class and through the class name?

Choose one answer.

a. The scope resolution operator (:

b. The dot operator (.)

c. None of the options

d. The pointer-to operator (->)


Question19Marks: 1

Assume there is a function named SetValue() that has a void return value and acceptsan integer as an argument. Identify the line of code that correctly calls SetValue().

Choose one answer.

a. SetValue(5)

b. VoidSetValue(int x)

c. SetValue(int x)

d. VoidSetValue(5)


Question20Marks: 1

Generic Programing is also a kind of code reusability


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Choose one answer.

a. TRUE

b. FALSE


Question21Marks: 1

What can you use with exceptions to enable an exception handler to catch relatederrors with a concise notation?

Choose one answer.

a. Inheritance

b. Polymorphism

c. Pointers

d. None of the options


Question22Marks: 1

A member function that takes no arguments sets the current link pointer to NULL andreturns the memory address that had been stored in the link pointer. Which optiondescribes what step should be taken first?

Choose one answer.

a. Return the value of the link pointer

b. Assign the current node's memory address to a second

pointer

c. Assign the value of the link pointer to a second pointer

d. Set the link pointer to NULL



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Question23Marks: 1

Which of the following type of functions is an ideal candidate for being declared inline ?

Choose one answer.

a. A function that is small and is called frequently

b. A function that is not small and is called frequently

c. A function that is not small and is not called frequently

d. A function that is small and is not called frequently


Question24Marks: 1

consider the declarationsconst char cc='h';char * cp;const char *const ccpc=&cc;char *const *cpcp;which of the fol5ing statementsstatement I: cp=*cpcp;statement II: *8cpcp=*cp;

statement III: *cp=**cpcp;are legal?

Choose one answer.

a. only statement I is illegal

b. all are legal

c. all are illegal

d. statement I and II are illegalCorrectMarks for this submission: 1/1.

Question25Marks: 1

What is the return type of write() function


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Choose one answer.

a. ofstream&

b. int

c. ostream&

d. char


Question26Marks: 1

Identify which of the following defines a function template that does not return a value

and has a pointer of type TChoose one answer.

a. T SortArray(T *pArray)

b. void SortArray(T *pArray)

c. void SortArray(T pArray)

d. void T SortArray(T *pArray)


Question27Marks: 1

A class that is designed only to act as a base class but not used to create objects iscalled ?

Choose one answer.

a. Local classes

b. Abstract class

c. Derived class

d. Intermediate derived class.

Correct


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Question28Marks: 1

Virtual methods are linked dynamically

Choose one answer.

a. FALSE

b. TRUE


Question29Marks: 1

What is the use of dynamic_cast operator

Choose one answer.

a. for dynamic conversion

b. for static conversion

c. To check is a Relation

d. none


Question30Marks: 1

which of the fol5ing operations are true for : scope resolution operator)?

Choose one answer.

a. For accessing global variables

b. It is used to call static members of class

c. Both

d. None

Correct


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Question31Marks: 1

What is a structure?

Choose one answer.

a. A memory location shared by two or more different variables,

at the same time

b. A memory location shared by two or more different variables,

at different times

c. A collection of related variables under one name

d. A collection of related variables under different names


Question32Marks: 1

What can a variable which is an unsigned int hold?

Choose one answer.

a. None of the options

b. Negative and positive values

c. Only positive values

d. Only negative values


Question33Marks: 1

Which of the fol5ing operations occurs when the skipsws flag is set?

Choose one answer.

a. Wildcard settings are ignored when data is being input

b. The width settings are ignored and the default setting is used


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instead

c. The while statements in a program are skipped

d. Leading whitespace characters are discarded when performing

input on a stream


Question34Marks: 1

Insertion and extraction operators cannot be overloaded as friend functions

Choose one answer.

a. FALSE

b. TRUE


Question35Marks: 1

Static variables of a class are also called Class Variables.

Choose one answer.

a. FALSE

b. TRUE


Question36Marks: 1

which the fol5ing is not astorage class supported by C++

Choose one answer.

a. register

b. auto

c. mutable


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d. dynamic


Question37

Marks: 1

class Base{public:void display(){}};class Derived : public Base{public:void display() {}};int main(){Derived d1;

Base *b=&d1;b->display(); /*which method is called */}

Choose one answer.

a. Segmentation fault

b. Error(illegal Cast)

c. Base Method

d. Derived Method


Question38Marks: 1

#includeclass Test{const int num;

public:Test(int n=0){num=n;}void show(){std::cout


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};int main(){Test t1(101);t1.show();

}

Choose one answer.

a. Garbage value

b. error

c. none

d. 101


Question39Marks: 1

class A{public: void show(){}};class B{public:void show(){}

};class C : public A,public B{};int main(){C c1;c1.show();}

Choose one answer.

a. B's show method

b. Abiguity(Error)

c. Error(C doesn't have any method by name show())

d. A's show method

Incorrect


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Question40Marks: 1

cfront

Choose one answer.

a. none of the above

b. Is the pre-processor of a compiler

c. is a tool that translates a C++ code to its equivalent C code

d. Is the front end of a compiler


Question41Marks: 1

A Template class should be inherited as a Template

Choose one answer.

a. FALSE

b. TRUE


Question42Marks: 1

#includevoid main(){const int i;const int &j=i;

printf("\n%u %u",&i,&j);}

Choose one answer.

a. Error


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b. Same address

c. Diff Address

d. Garbage Values


Question43Marks: 1

Which statements about inheritance are true?

Choose one answer.

a. All the options

b. The class, which inherits data members and member functions of a

base class, is called a derived class

c. Inheritance al5s programmers to reuse reliable software

d. Inheritance is when a programmer specifies that a new class inheritsthe data members and member functions of a previously defined base

class


Question44Marks: 1

Which options about public members are true?

Choose one answer.

a. A class can declare another class as a friend

b. A class must name all its friends in advance

c. All the options

d. Public members are always accessible


Question45Marks: 1


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Assume that a class contains a head pointer that can be accessed through publicfunctions. How could you ensure that the entire program has consistent access to thehead of the list?

Choose one answer.

a. Declare each instance of the class as a const

b. Create one instance of the class in main() and pass the object's

memory address to it

c. Make the class a friend of the node class

d. Instantiate the class in every function that needs to use the head

pointer


Question46Marks: 1

What advantages do linked lists have over fixed arrays?

Choose one answer.

a. Linked lists do not need to be stored in contiguous memory

b. All the options

c. You do not need to declare the size of a linked list before

compilation

d. A linked list reduces memory waste


Question47Marks: 1

What is the size of the class having normal function, and size of the class having virtual

function .

Choose one answer.

a. 1,1

b. 0,0


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c. 1 , 0

d. 1 , 4

Correct


Question48Marks: 1

Which of the fol5ing statements are true in c++?

Choose one answer.

a. Class members are public by default.

b. None of these.

c. classes can not have data as public members

d. Structures can have functions as members.


Question49Marks: 1

#includeint main(){const int i=printf(hello);int *p=&i;*p=999;std::cout


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Question50Marks: 1

The major goal of inheritance in c++ is

Choose one answer.

a. It saves memory

b. To facilitate the reusability of code.

c. To help modular programming

d. To facilitate the conversion of data types


Question51With which keyword do you precede the function prototypes, to tell a compiler that oneor several functions have been compiled in C?

Choose one answer.

a. inline

b. extern "C"

c. operator

d. auto


Question52new operator writes debugging information

Choose one answer.

a. FALSE

b. TRUE


Question53Marks: 1


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#includeclass Base{protected: int x;public: Base(int a) : x(a) {}

void showBase(){std::cout


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a. >>

b.

d.


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c. None

d. Both

Correct


Question58Marks: 1

Array of references can be created

Choose one answer.

a. FALSE

b. TRUE


Question59Marks: 1

Function Template and a Template Function Both are Different

Choose one answer.

a. TRUE

b. FALSE


Question60Marks: 1

#includeint main(){int x=300;

std::cout


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b. Error

c. none

d. Segmentation Fault


Question61Marks: 1

What is the use of dynamic_cast operator

Choose one answer.

a. To check is a Relation

b. none

c. for dynamic conversion

d. for static conversion


Question62Marks: 1

Which of the following indicates that a function is a pure virtual function.

Choose one answer.

a. The inclusion of the keyword virtual in the function

prototype

b. The inclusion of the keyword virtual and the assignme

=0 in the function prototype

c. The inclusion of the keyword pure in the function

prototyped. None of the options


Question63Marks: 1


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What can you use with exceptions to enable an exception handler to catch relatederrors with a concise notation?

Choose one answer.

a. Inheritance

b. Polymorphism

c. None of the options

d. Pointers


Question64Marks: 1

Static variables of a class are also called Class Variables.

Choose one answer.

a. FALSE

b. TRUE


Question65Marks: 1

Which of the following type of functions is an ideal candidate for being declared inline ?

Choose one answer.

a. A function that is not small and is called frequently

b. A function that is small and is called frequently

c. A function that is not small and is not called frequently

d. A function that is small and is not called frequently


Question66Marks: 1


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C++ is a pure Object Oriented Language

Choose one answer.

a. TRUE

b. FALSE


Question67Marks: 1

What name is given to a constructor member function?

Choose one answer.

a. None of the options

b. The same name as the function it is initializing

c. A random choice by the programmer

d. The same name as the class in which it is being declared


Question68Marks: 1

One of the disadvantages of pass-by reference is that the called function may corruptthe caller's data. This can be avoided by

Choose one answer.

a. declaring the actual parameters const

b. passing pointers

c. declaring the formal parameters constants

d. all of the above


Question69Marks: 1


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Identify the true statements about designing C++ programs for reusability

Choose one answer.

a. All the options

b. Creating a library of reusable components from scratch may be appropriate in many cases since the components lack

generalization

c. Global variables are accessible to any function defined in the

same file after the variable is declared

d. Modularity al5s you to divide the programming process amon

several people or across time


Question70Marks: 1

Space allocated by new can also be deallocated by free()

Choose one answer.

a. FALSE

b. TRUE


Question71Marks: 1

Which of the fol5ing while statements correctly signals the end of a file?

Choose one answer.

a. while(pFile->eof()==0)

b. while pFile->eof()==0

c. while(pFile->eof()=0)

d. while(pFile->eof==0)



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Question72Marks: 1

consider the fol5ing program segmentstatic char x[3]="1234";cout


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a. Error

b. 1

c. 0

d. GarbageValue


Question75Marks: 1

Select the correct segments of code

Choose one answer.

a. cout >> Please enter employee name;cin

"eName";

c. cout >> "Please enter employee name";cin

eName;


Question76Marks: 1

Which of the fol5ing statements are true in c++?

Choose one answer.

a. Class members are public by default.

b. Structures can have functions as members.

c. None of these.

d. classes can not have data as public members



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Question77Marks: 1

#include#includeint main()

{char *p;p=new char[20];strcpy(p,welcome);delete [] p;std::cout


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Choose one answer.

a. Object

b. String

c. type_info&

d. char*


Question80Marks: 1

class A

{public: void show(){}};class B{public:void show(){}};class C : public A,public B{};int main(){C c1;c1.show();

}Choose one answer.

a. B's show method

b. Abiguity(Error)

c. Error(C doesn't have any method by name show())

d. A's show method


Question81Marks: 1

Elements of STL containers can be accessed through

Choose one answer.


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a. all of the above

b. pointers

c. iterators

d. references


Question82Marks: 1

Let's say that you want to define a member function called walk in a class calledtransport. Which line of code would you use to begin the definition?

Choose one answer.

a. void transport(walk) (void);

b. void walk(transport) (void);

c. void walk :: transport (void);

d. void transport :: walk (void);


Question83Marks: 1

Which operator can you use to access public static class members through any objectof that class and through the class name?

Choose one answer.

a. The pointer-to operator (->)

b. None of the options

c. The scope resolution operator (:

d. The dot operator (.)



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Question84Marks: 1

Constructor can throw an Exception

Choose one answer.

a. TRUE

b. FALSE


Question85Marks: 1

A constructor is called when ever

Choose one answer.

a. an object is used

b. a class is declared

c. an object is declared

d. a class is used


Question86Marks: 1

Mandatory and Default arguments can be Mingled

Choose one answer.

a. FALSE

b. TRUE


Question87Marks: 1

By default when a class is declared what are the mebers provided by the compilers


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Choose one answer.

a. All the options

b. constructor

c. copy constructor

d. destructor


Question88Marks: 1

What is a structure?

Choose one answer.

a. A collection of related variables under one

name

b. A memory location shared by two or more diffe

variables, at the same time

c. A memory location shared by two or more diffe

variables, at different times

d. A collection of related variables under different

names


Question89Marks: 1

const_cast operator is used for

Choose one answer.

a. removing constness

b. adding constness

c. to create a constant

d. none

Incorrect


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Question90Marks: 1

Identify the types of exceptions that can be caught using exception handling techniques.

Choose one answer.

a. All the options

b. All exceptions of related types

c. All types of exceptions

d. All exceptions of a certain type


Question91Marks: 1

cfront

Choose one answer.

a. Is the pre-processor of a compiler

b. is a tool that translates a C++ code to its

equivalent C code

c. Is the front end of a compiler

d. none of the above


Question92Marks: 1

Which of the fol5ing is the default argument for the clear() function?

Choose one answer.

a. ios::clearbit

b. ios::defbit


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c. ios::goodbit

d. ios::setbit

Incorrect


Question93Marks: 1

What is the size of the class having normal function, and size of the class having virtualfunction .

Choose one answer.

a. 1 , 4

b. 1 , 0

c. 0,0

d. 1,1


Question94Marks: 1

Why is it necessary to expand an inline function before it is used?

Choose one answer.

a. The code body is needed to expand the inline

function

b. The inline function is needed to expand the code

body

c. The code body is needed to expand the inline

function

d. The inline function needs the outline to expand


Question95Marks: 1

void transport(walk) (void);


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Choose one answer.

a. The object's memory address

b. A pointer to the object

c. A reference to the object

d. All the options


Question96Marks: 1

#include

int main(){int x=100;int const *p=&x;p++;std::cout


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Choose one answer.

a. Depends on Compiler

b. Prints Same Addresses

c. Error

d. Prints Different Addresses


Question98Marks: 1

Which of the following lines of code opens the invoice file for output and binary

operations?Choose one answer.

a. open(ios::out, "invoice", ios::binary)

b. open("invoice", ios::out|ios::binary)

c. open("invoice", out::binary)

d. open("invoice", ios::binary, ios::out)


Question99Marks: 1

Which of the following options are true about inheritance?

Choose one answer.

a. When deriving from a private base class, protecprivate, and public members become private mem

of the derived class

b. When deriving from a protected base class, pubmembers become protected members of the derive

class

c. All the options


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d. When deriving from a public base class, the pubmembers become public members of the derived

class


Question100Marks: 1

#includevoid main(){const int i;const int &j=i;printf("\n%u %u",&i,&j);}

Choose one answer.

a. Error

b. Same address

c. Diff Address

d. Garbage Values

Modified Cpp

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