Trung tâm khảo thí trực tuyến-Online Test Center-

Tin Học || Căn Bản Văn Phòng Hệ Thống - Mạng Phần Mềm Ứng Dụng Kỹ thuật số Lập trình SQL

Trắc nghiệm Ngôn Ngữ Lập Trình C++ - Bài 47

1-	Which of the following statement is correct?
	A -	A constructor of a derived class can access any public and protected member of the base class.
	B -	Constructor cannot be inherited but the derived class can call them.
	C -	A constructor of a derived class cannot access any public and protected member of the base class.
	D -	Both A and B.
2-	Destructors __________ for automatic objects if the program terminates with a call to function exit or function abort.
	A -	are called
	B -	are inherited
	C -	are not called
	D -	are created
3-	Which of the following statements are correct?
	A -	Constructor is always called explicitly.
	B -	Constructor is called either implicitly or explicitly, whereas destructor is always called implicitly.
	C -	Destructor is always called explicitly.
	D -	Constructor and destructor functions are not called at all as they are always inline.
4-	How many times a constructor is called in the life-time of an object?
	A -	Only once
	B -	Twice
	C -	Thrice
	D -	Depends on the way of creation of object
5-	Which of the following gets called when an object is being created?
	A -	Constructor
	B -	Virtual function
	C -	Destructor
	D -	Main
6-	To ensure that every object in the array receives a destructor call, always delete memory allocated as an array with operator __________ .
	A -	destructor
	B -	delete
	C -	delete[]
	D -	kill[]
7-	Which of the following statement is correct about constructors?
	A -	A constructor has a return type.
	B -	A constructor cannot contain a function call.
	C -	A constructor has no return type.
	D -	A constructor has a void return type.
8-	Which of the following statement is correct whenever an object goes out of scope?
	A -	The default destructor of the object is called.
	B -	The parameterized destructor is called.
	C -	The default constructor of the object is called.
	D -	None of the above.
9-	Which of the following statement is correct?
	A -	The default value for an argument cannot be function call.
	B -	C++ allows the redefinition of a default parameter.
	C -	C++ does not allow the redefinition of a default parameter.
	D -	Both B and C.
10-	What happens if the base and derived class contains definition of a function with same prototype?
	A -	Base class object will call base class function and derived class object will call derived class function.
	B -	Only derived class function will get called irrespective of object.
	C -	Only base class function will get called irrespective of object.
	D -	Compiler reports an error on compilation.

[Người đăng: Thành Lãm - ST]

Ghé thăm Kênh của Vị Sư "hai lần chết đi sống lại"
Tu Si Chau Soc Thon
https://www.youtube.com/channel/UCoyC9WTTVR-M3qpTKKEXGnQ

Chau Soc Thon Official Channel