Tip 1 : Clear the core concepts of any programming language in which you are proficient.
Tip 2 : Learn data structures to it's core.
Tip 1 : Keep it clear and make it easily understandable.
Tip 2 : Focus on the topics that are helpful for your job role.
Explain OOPS concepts.
What are ACID properties?
What are semaphores?
Some SQL queries on a given table.
Does Java support multiple inheritance?
Why do you want to join us?
Where do you see yourself in 5 years?