risk-weighted-assets

Is it necessary to memorize every single line item and detail in the Risk Weighted Assets table for ratios like LCR and NSFR at the FRM Level 2 operational risk exam? or for examples credit spread tables (market Risk - Internal models approach) or for instance Jump to default Credit quality...

In the textbook of operational risk, RWA is mentioned frequently while talking about BASEL ACCORD. Another concept is risk capital that is a sort of cushion for various risks. What is RWA? what is the difference between RWA and risk capital?

I know this isn't about the FRM exam itself but is there any excel sheets about the calculation for CAR and it's risk weighted assets under Basel III? I have paper to write about it and I can't seem to find a good simple explanation on how to calculate for it, sorry but the words confuse me on...

I think it falls under the Study Guide titled under Operational Risk in Part 2: Capital Planning at Large Bank Holding Companies Is it covered in any other section? Thank you, Sixcarbs