ROUND1

Which header file is needed for printf() ?

• A) stdlib.h

• B) stdio.h

• C) conio.h

• D) string.h

      What is the output of the following?

 

printf("%d", sizeof('A'));

• A) 1

• B) 2

• C) 4

• D) Depends on compiler

Which of the following is a DDL command ?

• A) INSERT

• B) UPDATE

• C) CREATE

• D) DELETE

DROP TABLE Students;

 

This query will:

• A) Delete all rows but keep structure

• B) Delete only selected rows

• C) Remove table definition and data permanently

• D) Rename the table

In the OSI reference model, the view of the network seen by the end user is provided by the...?

• A) Transport Layer

• B) Network Layer

• C) Application Layer

• D) Data Link Layer

In Python, what happens when a while loop condition is initially false?

• A) Runs once

• B) Runs infinitely

• C) Skips body entirely

• D) Gives error

In Round Robin scheduling, the performance depends on:

• A) Number of processes

• B) Quantum size

• C) CPU speed

• D) Context switching

Which traversal is best for finding shortest path in an unweighted graph?

• a) DFS(Depth First Search)

• b) BFS(Breadth First Search)

• c) Inorder

• d) Preorder

Which join returns all rows from the left table and matching rows from the right table?

• A) INNER JOIN

• B) LEFT JOIN

• C) RIGHT JOIN

• D) CROSS JOIN

The Banker's algorithm is used for:

• A) Deadlock prevention

• B) Deadlock detection

• C) Deadlock avoidance

• D) Mutual exclusion