What is the fastest way to communicate new release information to your end users?

When would you use APEX?
Choose 2 answers.

What can the Schema Extract Tool provide the administrator prior to loading data into Sales force?
Select all that apply:

Both a sharing rule and an account team give Jose access to the Dixon Chemical account The sharing rule gives him read access, and the account team gives him read/write access. Will Jose be able to edit the Dixon Chemical account.

Force.com is multi-tenant. What does this statement mean?