Pergunta de entrevista da empresa ConsultAdd

1. How ACID properties works in real life example. 2. What is difference between Abstraction and Encapsulation 3. What is Weak entity 4. Which algorithm is used to find out minimum distance between two nodes 5. What is BFS and DFS. 6. How would you write a query to find out 2nd highest salary from employee table 7. What is normalisation 8. Garbage collection 9What is Fragmentation 19. Ways to prevent memory leak