Placement Papers - MCQ Practice Questions

In Java, what does 'final' keyword do when applied to a variable?

What is the purpose of an index in a database?

What is polymorphism in OOP?

Which of the following is NOT a characteristic of Cloud Computing?

What is the primary difference between ArrayList and LinkedList in Java?

What is normalization in database design?

What is the main purpose of agile methodology in software development?

In the context of cybersecurity, what is a firewall?

If the probability of an event A is 0.4 and event B is 0.3, what is the probability of both A and B occurring (assuming independence)?

A vendor purchases apples at Rs. 50 per dozen and sells at Rs. 5 per apple. What is the profit percentage?

What is the time complexity of binary search algorithm?

A train travels from City A to City B at 60 km/h and returns at 40 km/h. If the total journey time is 10 hours, what is the distance between the two cities?

In a logical sequence: 2, 6, 12, 20, 30, ?, what is the next number?

Select the word that best completes the analogy: Ephemeral is to Permanent as Verbose is to ____

Two pipes A and B can fill a tank in 12 hours and 18 hours respectively. How long will it take to fill the tank if both pipes are opened together?

If a number is divided by 7, it leaves a remainder of 4. If the same number is divided by 11, what could be the remainder?

A person covers 60% of a journey by train, 30% by bus, and the remaining distance of 20 km by walk. What is the total distance?

Three numbers are in the ratio 2:3:5. If their sum is 100, what is the largest number?

A number when divided by 12 leaves remainder 5. What is the remainder when the number is divided by 4?

If 5 workers can build a wall in 12 days, how many days will 10 workers take?