A developer executes the following query in Apex to retrieve a list of contacts for each account:
List<account> accounts = [Select ID, Name, (Select ID, Name from Contacts) from Account] ; Which two exceptions may occur when it executes? (Choose two.)

In terms of the MVC paradigm, what are two advantages of implementing the layer of a Salesforce application using Aura Component-based development over Visualforce? Choose 2 answers

A developer uses an 'after update' trigger on the Account object to update all the Contacts related to the Account. The trigger code shown below is randomly failing.
List<Contacts> theContacts = new List<Contacts>(); for(Account a : Trigger.new){ for(Contact c : [SELECT Id, Account_Date__c FROM Contact WHERE AccountId = :a.Id]){ c.Account_Date__c = Date.today(); theContacts.add(c);
}
} updates theContacts;
Which line of code is causing the code block to fail?

Where can debug log filter settings be set?Choose 2 answers

Where would a developer build a managed package?