Accenture Salesforce Developer interview questions

They asked mostly Question from flow like how you will get record Ids in flow process ,asked if we want to hide one whole section from same profile and same hierarchy user how we we can achieve , Aggragate Query while you write aggregate query they will add more confition on that ,Integration retry mechanism LWC Child to Parent whole code at the time of code they will add logic I really enjoyed interview they cleared everything what I did good what I did wrong really impressed with interview

Explain APEXe with intense knowledge about Salesforce process sales cloud service cloud