906   
 Here are some key points to be taken care of, which may help you to crack the bone of 401.For that you should have firm knowledge about : 
  - Sharing Rules / Org-Wide Default
 - Approval Processes (Unanimous / Parallel / Skipping Steps / Dynamic Routing)
 - Junction Object
 - Master-Detail / Lookup / Hierarchical relationships
 - Report / Report Types / Dashboards
 - Data Loader / Import Wizard
 - Formula Fields
 - Analytical Snapshot
 - Workflows
 - Encrypted Fields / External Ids
 - Governor Limits