https://developer.salesforce.com/page/Apex_Design_Patterns
2. What is the tuning performance? How do you increase it?
3. What is the apex design pattern? What is the continuous pattern?
https://developer.salesforce.com/page/Apex_Design_Patterns
4.One child record per one master details how would you achieve it?
https://www.infallibletechie.com/2013/05/how-to-create-one-to-one-relationship.html
5.Salesforce design pattern
https://developer.salesforce.com/page/Apex_Design_Patterns
6. What is asynchronous Apex?
@future, Queueable Interface, Batch Class.
7. What is the future method?
https://www.infallibletechie.com/2012/08/future-annotation-in-salesforce.html
8. What is Queueable Apex?
https://www.infallibletechie.com/2016/08/queueable-apex.html
9. What is Batch Apex?
https://www.infallibletechie.com/2012/05/batch-apex.html
10. How many batch jobs can be in a single queue?
You can only have 25 classes scheduled at one time. You can evaluate your current count by viewing the Scheduled Jobs page in Salesforce or programmatically using the Force.com Web services API to query the CronTrigger object.
While the batch apex states:
Up to five queued or active batch jobs are allowed for Apex.
10.The difference between Workflow and Process builder?
https://www.infallibletechie.com/2016/07/what-is-difference-between-process.html
12. What is the flow?
https://www.infallibletechie.com/2014/05/visual-workflow-in-salesforce.html
13. What are the steps for inbound, and outbound web service calls?
https://developer.salesforce.com/blogs/developer-relations/2015/06/integrating-force-com.html
14. How to handle the error in Apex (class)?
https://developer.salesforce.com/page/An_Introduction_to_Exception_Handling
15. Salesforce Case Management?
https://www.infallibletechie.com/2014/12/case-management-in-salesforce.html