Salesforce Chatter

The study guide indicates that approximately 1% of the weighting for the Salesforce Admin 201 certification is given to the topic of Chatter.

Given that there are 60 questions, you could expect around only 1 or 2 questions. Even though there is only a 1% weighting on Chatter, social collaboration is a very important part of the Salesforce platform and you should know the features and capabilities well.