Derived Classes, Templates & Exception Handling in C++ Quiz 1

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What is the correct syntax of defining function template/template functions?

Template <T> void(T a){cout<<a;}

Template <class T> void(T a){cout<<a;}

template <class T> void(T a){cout<<a;}

template <T> void(T a){cout<<a;}

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What is an abstract class in C++?

Class from which any class is derived

Class specifically used as a base class with atleast one pure virtual functions

Any Class in C++ is an abstract class

Class specifically used as a base class with atleast one virtual functions

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What is a function template?

creating a function without class

creating a function without having blank spaces

creating a function without having to specify the exact type

creating a function with having an exact type

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Which keyword is used for the template?

Template

temp

Temp

template

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How to declare a template?

tem

template<>

temp()

temp

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What is the syntax of class template?

Temp <paramaters> class declaration

template <paramaters> class declaration

Template <paramaters> class declaration

temp <paramaters> class declaration

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What may be the name of the parameter that the template should take?

same as member

same as class

same as template

same as function

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What is the difference between normal function and template function?

Template function works with any data types whereas normal function works with specific types only

The normal function works with any data types whereas template function works with specific types only

Unlike a normal function, the template function accepts a single parameter

Unlike the template function, the normal function accepts more than one parameters

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Pick out the correct option.

We cannot make an instance of an abstract base class

We can make an instance of an abstract base class

We can make an instance of an abstract super class

We can make an instance of an abstract derived class

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Pick out the correct statement.

A derived class?s destructor cannot invoke its base class?s destructor

A derived class?s destructor can invoke its base & derived class?s destructor

A derived class?s destructor can invoke its base class?s destructor

A derived class?s constructor cannot explicitly invokes its base class?s constructor

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Which class is used to design the base class?

abstract class

base class

derived & base class

derived class

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What is a template?

A template is a formula for creating a generic class

A template is used for creating the attributes

A template is used to delete the class

A template is used to manipulate the class

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Which is the correct syntax of defining a pure virtual function?

pure virtual return_type func();

virtual return_type func();

virtual return_type func() pure;

virtual return_type func() = 0;

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Which is used to create a pure virtual function?

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From where does the template class derived?

main function

regular non-templated C++ class or templated class

templated class

regular non-templated C++ class

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Templates simulate which of the following feature?

Abstraction

Encapsulation

Polymorphism

Inheritance

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How many parameters are legal for non-type template?

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Pick out the correct statement about the override.

Overriding has different names

Overriding refers to a derived class function that has the same name and signature as a base class virtual function

Overriding has different names & it refers to a derived class

Overriding refers to a derived class

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How many types of class are there in c++?

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What is meant by polymorphism?

class having only single form

class having many forms

class having two forms

class having four forms

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Pick out the correct statement about multiple inheritances.

Deriving a class from more than one direct base class

Deriving a class from more than one direct derivedbase class

Deriving a class from more than one direct derived class

Deriving a class from one direct base class

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What does inheritance allow you to do?

create a method

create a class

create a hierarchy of classes

access methods

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Which of the following can derived class inherit?

functions

both members & functions

members

classes

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What is meant by pure virtual function?

Function which does not have definition of its own

Function which does have definition of its own

Function which does not have any return type & own definition

Function which does not have any return type

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How many types of the constructor are there in C++?

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What is meant by container ship?

class contains objects of other class types as its members

class contains objects of other class types as its members 7 also objects

class contains objects of other class types as its objects

class contains objects of other class types as its members 9 also objects

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Which interface determines how your class will be used by another program?

void

public

protected

private

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Which is the correct statement about pure virtual functions?

Pure virtual function is implemented in derived classes

Pure keyword should be used to declare a pure virtual function

They should be defined inside a base class

Pure virtual function cannot implemented in derived classes

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What should be the name of the constructor?

same as the class

same as the object

same as the function

same as the member

30 / 50

Which are done by compiler for templates?

code elimination

type-safe

prototype

portability

31 / 50

Pick out the correct statement.

you only need to write one function, and it will work with many different types

it will take a long time to execute

it will take a long time to execute & duplicate code is increased

duplicate code is increased

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Pick the correct statement.

Pure virtual functions and virtual functions are the same

The base class has no pure virtual function

Both Pure virtual function and virtual function have an implementation in the base class

Pure virtual function has no implementation in the base class whereas virtual function may have an implementation in the base class

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How many types of templates are there in c++?

34 / 50

Which operator is used to declare the destructor?

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Which is used to describe the function using placeholder types?

template type parameters

template parameters

template type

type parameters

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How many types of inheritance are there in c++?

37 / 50

What does derived class does not inherit from the base class?

operator = () members

all of the mentioned

constructor and destructor

friends

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What are Templates in C++?

A feature that allows the programmer to make program modular

A feature that allows the programmer to write specific codes for a problem

A feature that does not add any power to the language

A feature that allows the programmer to write generic programs

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In how many ways templates concept can be used?

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What is the syntax of inheritance of class?

access specifier class name

class name: access specifier

class name: access specifier class name

class name

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Where does the abstract class is used?

virtual class

derived class

base class only

both derived & base class

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Pick out the correct statement about string template.

It is used to delete a string

It is used to replace a string

It is used to create a string

It is used to replace a string with another string at runtime

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How many ways of reusing are there in the class hierarchy?

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Which is also called as abstract class?

base class

virtual function

pure virtual function

derived class

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What can be passed by non-type template parameters during compile time?

float

string

constant expression

int

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What is a pure virtual function in C++?

A function without definition in a base class

A virtual function defined in a base class

A virtual function declared in a base class

Any function in a class

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Which constructor will initialize the base class data member?

derived class

derived & base class

base class

class

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How many kinds of classes are there in c++?

49 / 50

How many constructors can present in a class?

multiple

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Where is the derived class is derived from?

both derived & base

base

derived

class

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