Deloitte's Salesforce Developer Interview questions || 3+ YOE || Salesforce developer interview prep

1.Question was related to Apex - Given a list of account records, write an apex method that groups the Accounts by their industry field and returns the count of Accounts for each industry
2.Write a trigger to update the user phone number as same as the contact phone number once the contact phone number gets updated (2 class, one annotated with @future)
3.When to choose flows over trigger
4.When to choose trigger over flows
5.Once the record is updated, you need to invoke the batch - what will you choose to flow or trigger?
6.A flow is triggering an email to user but the email is not being sent and throwing an error send email not allowed. What could be the reason
7.How can we get the flow error emails to DevOps group id email
8.What is Owd? What access can be provided? What's the default access for external and internal?
9.How can we give the same access by apex, write sample code (apex sharing), cross questions asked - if the row case is custom, what will happen
10.Data loader - while working with the data loader, what error you have faced and how did you resolve it?
11.What is the wrapper class? Write a sample code to show an account with related case, contact and opportunities
12.What is the platform cache? Have you worked on it?
13.What is the difference between SAML and SSO
14.What is the STUB API