Tech Mahindra Salesforce Developer interview questions

1. Create an apex method that takes an account ID and creates associated contacts. 2. In LWC, call that apex method. 3. Best Practice to write Apex Class. 4. Roles and Profile. 5. Assume you have an opportunity Id and a number field in his linked object. Create a SOQL query to total the number of fields associated with the opportunity. 6. Difference between IsNull and IsBlank. 7. Questions on Security Model