Brocade interview questions

I was at my initial phase of my preparation. The interviewer was too good and came straight to the point. Questions were from System verilog 1. What is Inheritance? 2. How do you declare mailbox? 3. What is the keyword for inheritance? 4. asked about a test plan for a simple scenario 5. asked me to define a constraint But I did very miserably.

Phone Interview, met with engineers, pretty basic stuff