Universal Containers is updating its Organization-Wide Sharing Settings for the Account Object from a "Public Read/Write" model to a "Private" model, so that they can hide certain national accounts from sales reps and sales managers. These national accounts should only be accessible by sales directors and above. Universal Container's Role Hirerarchy matches its organizational hierarchy.
Which two options should the Architect consider when designing the solution?
Choose 2 answers

Universal Containers keeps product brochures in Salesforce as files. Sarah shares a public Unit to a product brochure with potential customers during a meeting. She wants to ensure they do not have access to the file after the meeting.
How should Sarah accomplish this?

Universal Containers (UC) has a custom Apex class that enforces a business process and updates opportunity field-level security permissions of read only certain user's profiles are being updated by their class.
How should the architect fix this problem?

Which two reasons should the Architect consider regarding the use of Apex Sharing Reasons?
Choose 2 answers

Universal Containers, a global corporation of 50,000 users, has a 24x7 call center operated by 20,000 users that includes employees and contractors. Their sales organization is 10,000 strong and they started processing about 100,000 updates to opportunity custom fields called Priority and NextStep. They also started processing
20,000 updates to a highly nested territory hierarchy. There was a third mass update on a Next Step field on the Action Plan custom object that has Case as a lookup field. Users started seeing a Group membership lock error in the system.What is a probable cause for this error?