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Programming Portal MCQs [73]

You will find all MCQs which are added in Programming Portal by Brijesh Goswami

Q. Which key declares that an index in one table is related to that in another?

Q. Foreign keys cannot handle deletes and updates.

Q. Deletion of an employee from table also deletes that employee from another table. This kind of delete is called ____________.

Q. Which storage engine in MySQL provides foreign key support?

Q. The property of InnoDB that enforces foreign key relationships stay intact is called ____________

Q. Which clause names the parent table and the index columns in the table?

Q. If the storage engine InnoDB is not used, foreign key cannot be used.

Q. Which clause is used to remove a foreign key constraint?

Q. Which keyword is used to specify the foreign key after the table is created?

Q. Which clause in the SQL standard controls how NULL values in a composite foreign key are handled when comparing to a primary key.

Q. Triggers enable to enforce data integrity constraints.

Q. Which statement is used to create a trigger?

Q. For which of the following are triggers not supported?

Q. Which statement is used to remove a trigger?

Q. Before MySQL 5.1.6 which privilege was required to create and drop triggers?

Q. The TRIGGER privilege is used for the table to be able to create and drop triggers for it.

Q. What is abc in the following statement?

Q. What is def in the following statement?

Q. What is ghi in the following statement?

Q. What is def in the following statement?

Q. What is an object in c++?

Q. Which of the following is not a type of inheritance?

Q. Which of the following is the correct identifier?

Q. Find the output of the following program.

Q. Find the output of the following program.

Q. Identify the correct escape sequence used for the new line.

Q. Find the output of the following program.

Q. Find the output of the following program.

Q. How many times will the print statement be executed?

Q. Find the output of the following program

Q. Find the output of the following program.

Q. Find the output of the following program.

Q. Which of the following functions can be inherited from base class?

Q. Under which pillar of OOPS does base class and derived class relationship come?

Q. Data members and member functions of a class are private by.default. True or False?

Q. What does a C++ class hold?

Q. What is the number of parameters that a default constructor requires?

Q. Total types of constructors in C++ are?

Q. Choose the option below which is not a member of class.

Q. Identify the storage classes that have global visibility.

Q. Total types of errors in C++.

Q. Why are comments used?

Q. How much bytes of memory does void occupy?

Q. Choose the type of loop which is guaranteed to execute at-least once?

Q. Choose the correct subscript operator.

Q. Identify the logical AND operator.

Q. Choose the size of the below struct.

Q. Identify the correct range of signed char.

Q. What is do-while loop also known as?

Q. Identify the format string among the following.

Q. What is the ASCII value of ‘\0’ character?

Q. Which of the following types is the language C++?

Q. Identify the size of int datatype in C++.

Q. Using which of the following keywords can an exception be generated?

Q. The constants in C++ are also known as?

Q. Choose the correct option which is mandatory in a function.

Q. Identify the correct function from which the execution of C++ program starts?

Q. When can an inline function be expanded?

Q. Using which of the following data type can 19.54 be represented?

Q. Choose the correct default return value of function.

Q. By which of the following can the if-else statement be replaced?

Q. Identify the correct definition of ‘*’ operator in pointer.

Q. goto can be classified into?

Q. Identify the scope resolution operator.

Q. Which of the following loops is best when we know the number of iterations?

Q. identify the correct example for a pre-increment operator.

Q. Which of the following is “address of operator”?.

Q. Size of wchat_t is.

Q. Identify the correct syntax for declaring arrays in C++.

Q. Which of the following data type is supported in C++ but not in C?

Q. C++ uses which approach?

Q. Identify the incorrect constructor type.

Q. Identify the correct extension of the user-defined header file in C++.