Important Questions:

1) What are Governor Limits?
Because Apex runs in a multitenant environment, the Apex runtime engine strictly enforces limits to ensure that runaway Apex code or processes don’t monopolize shared resources.

2) What is MultiTenant?
Multi-tenancy is an architecture in which a single instance of a software application serves multiple customers. Each customer is called a tenant. Tenants may be given the ability to customize some parts of the application, such as color of the user interface (UI) or business rules, but they cannot customize the application's code.

3) What are Cons and Pros of Governors Limit?

4) Why Too many SOQL fired Error comes?

5) Events of Triggers?
6) Refresh a specific section of Visual Force pages
7) Difference between Roles and Profiles