Placement Papers - MCQ Practice Questions

What does API stand for?

In machine learning, what is the purpose of cross-validation?

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?

What is an exception in programming?

If a string in Python is assigned as s = 'hello', what is the output of s[1:4]?

What is the primary advantage of using NoSQL databases over relational databases?

In the context of cybersecurity, what is a firewall?

What is the value of log₂(8)?

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)?

In a sequence, each number is the sum of the previous two numbers. If the first two numbers are 1 and 1, what is the 7th number?

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

Which of the following is the odd one out based on the pattern? 5, 10, 20, 40, 80, 160, 320, ?

In a coding system, CAT = 3, DOG = 4, ELEPHANT = 8. What would SNAKE equal?

Select the word that best completes the analogy: Teacher is to Student as Doctor is to ___

Choose the option with the correct spelling:

In SQL, which keyword is used to remove duplicate rows from query results?

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?