Exchange 2013 & Office365 Hybrid Deployment_

I have some queries before we deploy the hybrid model betweek exchange 2013 & office365.

Our main reason for a hybrid deployment is to archive emails of certain users to office365.

1. Can we achieve this with a hybrid model? Will the mailbox exist on premise exchange and archive data on Office365.

2. Will the user be able to access his current emails and archived email from outlook or will he have to login to different screens?

3. how do i deploy and configure the hybrid model.

4. what are the certification requirements.

Thanks in advance.