I have completed the certifications:
1. Developing Microsoft SharePoint Server 2013 Advanced Solutions
2. Developing Microsoft SharePoint Server 2013 Core Solutions
3. PRO: Designing and Developing Microsoft SharePoint 2010 Applications
4. TS: Microsoft SharePoint 2010, Application Development
5. Microsoft Office SharePoint Server 2007 - Application Development
6. Programming in HTML5 with JavaScript and CSS3
Sharepoint core solution is a very large topic
I can help to make a deep dive on your questions.
A dedicated Skype meeting is the Best for explaining the answers to your requirements.
The answers are efficients and with a high level of Skills.