List of top Computer Science and IT Engineering Questions

is a collection of classes and interfaces.

What is the correct syntax for declaring a pure virtual function in C++?

Which of the following operators cannot be overloaded?

What will be the output of the following code? verbatim #include <iostream> using namespace std; int main() int a = 10; int ptr = &a; cout << ptr; return 0; verbatim

What is the main purpose of templates in C++?

What is the purpose of the endl manipulator in C++?

Which of the following is NOT a type of constructor in C++?

What is the output of the following code snippet? verbatim #include <iostream> using namespace std; int main() int x = 5; int y = x++; cout << y; return 0; verbatim

Which keyword is used to define an object in C++?

Which of the following is not a principle of Object-Oriented Programming?

What is the purpose of normalization in a relational database?

Which of the following is NOT a NoSQL database type?

is not a DDL command.

Which of the following SQL statements contains an error?

Which of the following is a key characteristic of NoSQL databases?

What is the purpose of the HAVING clause in SQL?

Which of the following is NOT a valid PL/SQL control statement?

What type of database model uses tables with rows and columns?

Which normal form removes transitive dependencies?

Which of the following ensures referential integrity in a relational database?

Paging involves breaking physical memory into fixed-sized blocks called .

What is the main function of the operating system's scheduler?

The interval from the time of submission of a process to the time of completion is the

Which issue in process synchronization is prevented by using a semaphore?

What does the term 'context switching' refer to in an OS?