What is the potential exception that can be thrown from this SOQL query: Account a = [SELECT Id, (SELECT Id FROM Contacts) FROM Account] Choose 2 answers

A developer wants to create a Visualforce page that allows a user to search for a given account by Name. If the account is found, the account details should be populated on screen. If no account is found, an error message should be displayed to the user. How can this be accomplished? Choose 2 answers

What is the transaction limit on the recursive trigger depth?

How could a developer create a Visualforce page for a Multilanguage organization? Choose 2 answers

A large company uses Salesforce across several departments. Each department has its own Salesforce Administrator. It was agreed that each Administrator would have their own sandbox in which to test changes.
Recently, users notice that fields that were recently added for one department suddenly disappear without warning. Also, Workflows that once sent emails and created tasks no longer do so.
Which two statements are true regarding these issues and resolution? (Choose two.)