apex:actionPoller, apex:actionFunction, apex:actionSupport, etc.
2. Salesforce sites?
Used to show data from our organization for public view.
3. Rendered and Re Rendered and Re Renderdas?
http://infallibletechie.blogspot.com/2012/10/difference-between-rendered-renderas.html
4. Auto-response rules and Escalation rules(for which objects are mandatory)?
Case and Lead.
5. Difference between REST and SOAP API’S?
Varies on records that can be handled.
6. What is creating debug log for users?
Track code
7. Diff SOQL and SOSL?
http://infallibletechie.blogspot.com/2012/10/difference-between-sosl-and-soql.html
8. What is Action support and Action pollar in V.F?
http://infallibletechie.blogspot.com/2012/10/apexactionpoller.html
9. Diff Mater-detail & Lookup?
http://infallibletechie.blogspot.com/2013/02/difference-between-lookup-and-master.html
10. What is Dynamic Apex?
http://infallibletechie.blogspot.com/2012/10/dyanamic-apex.html
11. How cases are created?
Email to Case and Web to Case
12. How many events are there in Triggers?
http://infallibletechie.blogspot.com/2013/01/triggers-in-salesforce.html
13. What is after undelete?
While retrieving from recycle bin
14. Will Trigger.new supports —>Insert,,,Will Trigger.Delete supports —>Delete
Yes.
15. What is Inline visualforce page?
Having vf page in pagelayout.
16. Diff between Profile and permission sets?
http://infallibletechie.blogspot.com/2012/11/what-are-permission-sets-and-how-do.html
17. Diff between role and profile?
http://infallibletechie.blogspot.com/2012/12/difference-between-roles-and-profiles.html
18. What are sharing rules?and how many types of sharings are there?
http://infallibletechie.blogspot.com/2012/11/sharing-rules.html
19. JSON?
http://infallibletechie.blogspot.com/2012/10/generating-json-in-visualforce-page-in.html
20. Do you know about Portals?
http://infallibletechie.blogspot.com/2013/02/customer-portal-implementation-in.html
21. If is child is mandatory field in lookup and I m deleting Parent,will child get deleted?
No.
22. Junction object?when will we use?If we delete the junction object what will happen?
For many to many relationship.
23. Diff between controller and Extension?
http://infallibletechie.blogspot.com/2012/11/difference-between-standardcontroller.html
24. What is Dynamic SOQL?
http://infallibletechie.blogspot.com/2012/10/dynamically-getting-picklist-values.html
25. Context Variables in Triggers?
http://infallibletechie.blogspot.com/2013/05/context-variables-in-triggers.html
26. Trigger.new and Trigger.old?
http://infallibletechie.blogspot.com/2012/04/difference-between-triggernew-and.html
27. Can we have V.F pages in page layout?
Yes.