Batch Apex and Schedule Apex Interview Questions

Batch Apex & Schedule Apex Interview Questions

1. What is a Batch Apex?
2. What is a Schedule apex?
3. Where we need to use Batch apex? what are the Features it offers?
4. What access modifier we should use in Batch Class?
5. What are the Methods we should Implement in Batch apex?
6. What is the Use of Start method?
7. What is the importance of Execute method? and how many times it runs?
8. What is the purpose of finish method?
9. What is a Database.Batchable interface?
10. What is a Database.QueryLocator?
11. What is the iterable<Sobject>?
12. What is a Database.BatchableContext?
13. What is the Difference between Synchronous and Asynchronous?
14. Is Batch apex Synchronous or Asynchronous?
15. What is the Difference between Stateless Or Stateful?
16. Is Batch apex Stateless Or Stateful?
17. How to Implement Stateful in Batch class?
18. How can we schedule a batch class? How?
19. Can we schedule Batch classes in Minutes or Hours? If yes, How?
20. Can we call one Batch class to another Batch class?
21. Can we schedule a batch apex class with in that batch class?
22. Can we call future method from a batch class?
23. Can we write batch class and schedulable class in a same class?
24. Can we call callouts from batch apex?
25. What is the Default batch size? and what is the max batch size?
26. How to Execute a Batch Classes?
27. How to track the details of the current running Batch job?
28. What is AsyncApexJob object?
29. How many batch Jobs Active at a time?
30. What are the Batch apex governor limits?
31. What are the batch apex Best Practices?
32. How to stop the Batch apex jobs?
33. How to abort a batch jobs?
34. What is BatchApexworker record type?

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