MySQL interview questions part 24
MySQL interview questions part 24
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. Which among the following is/are type(s) of this pointer?
Correct Answer is : –datadir
2. Which is the correct syntax for declaring type of this in a member function?
Correct Answer is : SHOW VARIABLES
3. How many types of constructors are available, in general, in any language?
Correct Answer is : performance_schema
4. Choose the correct option for the following code. class student { int marks; } student s1; student s2=2;
Correct Answer is : performance_schema
5. Which constructor is called while assigning some object with another?
Correct Answer is : exec_stmt_ssl
6. It’s necessary to pass object by reference in copy constructor because:
Correct Answer is : C
7. Which specifier applies only to the constructors?
Correct Answer is : libmysqld
8. Which among the following is true?
Correct Answer is : –with-embedded-server
9. Which type of constructor can’t have a return type?
Correct Answer is : TRUE
10. Why do we use static constructors?
Correct Answer is : TRUE
11. When and how many times a static constructor is called?
Correct Answer is : error log
12. Which among the following is true for static constructor?
Correct Answer is : slow query log
13. Within a class, only one static constructor can be created.
Correct Answer is : 10
14. Default constructor initializes all data members as:
Correct Answer is : –log-bin-index
15. When is the static constructor called?
Correct Answer is : TRUE
16. If constructors of a class are defined in private access, then:
Correct Answer is : IN and NOT IN
17. Which among the following is correct, based on the given code below: class student { int marks; public : student() { cout<<”New student details can be added now”; } }; student s1;
Correct Answer is : column
18. How many types of inheritance are possible in C++?
Correct Answer is : cascaded
19. Which type of inheritance is illustrated by the following code? class student{ public: int marks; }; class topper: public student { public: char grade; }; class average{ public: int makrs_needed; }; class section: public average{ public: char name[10]; }; class overall: public average{ public: int students; };
Correct Answer is : InnoDB
20. Which among the following best describes multiple inheritance?
Correct Answer is : referential integrity
