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SF Technical Interview Q

Technical Questions

1)     What is Apex?

2)     What is VisualForce?

3)     What is an S-Control?

4)     What is the difference between Visualforce and S-Control?

5)     What are recursive triggers? How can we avoid the recursion problem?

6)     What are apex governer limits?

7)     Do governer limits apply to sandbox instances?

8)     What are recent release features?

9)     How do you use actionFunction tag?

10)   What is the difference between actionFunction and actionSupport tags?

11)   What is actionPoller?

12)   What is the difference between ISNULL and ISBLANK?

13)   How do you do FileUpload using visualforce?

14)   What is appExchange? How can I host my application on appExchange?

15)   What is batch apex?

16)   When will you use batch apex and what is the best practice?

17)   What is apex scheduler?

18)   What are webservice callouts?

19)   What are wrapper classes?

20)   When do we use wrapper classes?

21)   How do you hide header and side bar on visualforce page?

22)   What is the difference between standard and custom controller?

23)   What is controller extension?

24)   How do you read parameter in visualforce page?

25)   How many dependent drop downs can be put in visualforce page?

26)   What is the maximum size of the PDF generated on  visualforce attribute renderAs?

27)   How can we check the objects accessibility on visualforce page?

28)   How many rows are returned by a list controller?

29)   What is custom component?

30)   What is assignTo attribute and what is its use?


  1. You should provide answers also, It would be great, for lazy bees (including me)
    But thanks,
    really appreciated.


  3. can you please send me answers for the interview questions in your blog

  4. Hi friends,

    If anyone have interview questions and answers on salesforce

    please forward to me.


  5. The questions are all from DEV 501 Certification

  6. Please, accept my heartfelt thanks for these should provide answers also

  7. For DEV 401 interview answers, please check

  8. hello 2 Alll...
    i have java developer background Please send me related Materials Of Dev 401 plz

  9. copy and past these quations in google search u can get answers...

  10. what is Apex?

    Apex is a strongly typed, object-oriented programming language that allows developers to execute flow and transaction control statements on the platform server in conjunction with calls to the​ API. Using syntax that looks like Java and acts like database stored procedures, Apex enables developers to add business logic to most system events, including button clicks, related record updates, and Visualforce pages. Apex code can be initiated by Web service requests and from triggers on objects.

  11. What is visualforce?

    Visualforce is the component-based user interface framework for the platform. The framework includes a tag-based markup language, similar to HTML. Each Visualforce tag corresponds to a coarse or fine-grained user interface component, such as a section of a page, or a field.

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