Wafer Space interview for verification

Question asked

1. write a constraint if address is within 100K it can have x1 and y1 state , if it goes beyond that it will have z1 state, if it x1 state it can have good and bad state otherwise it will idle state
2. write a logic if class is instantiated n1 times , counter value should be x1
3. how will you test FIFO which will warp after 31 entry
4. write an assertion in such way that if signal is 10 cycle earlier if it is high and x goes high
5. what are UVM phases ?
6. what are different phases used in monitor ?
7. write a system verilog sequence ?
8. what is polymorphism ? explains with example?
9. what is p_sequencer and m_sequencer ?