Announcement is very important to Spread news across your organization, and Chatter is an awesome feature in Salesforce to do that. Post group announcements is to highlight important messages on the group page. I have written a few articles on Chatter. Why not check them out while you are at
Tag: SFDC exam
IsTest Annotation in Salesforce
Use the isTest annotation to define classes or individual methods that only contain code used for testing your application. The isTest annotation is similar to creating methods declared as test Method. Note:– Classes defined with the isTest annotation don’t count against your organization limit of 3 MB for all Apex