I'm curious
where your studying this from? Nothing in the FAA
107 training materials ever mention's the NTSB and to my knowledge there is not any question in the exam that mentions the NTSB either. We've seen this 'mixing' of what the FAA and the NTSB says in regards to 'accident reporting' but in-so-far-as how it effects your study for the FAA part 107 (unless something has been added recently), does not require you to know about NTSB reporting standards.
All that you need to know to take the 107 in regards to 'accident reporting' is the following. . . . .
---------------------------------------------------------------------------------------------------------------------------------
No later than 10 calendar days after an operation that meets the criteria of either
paragraph (a) or
(b) of this section, a remote pilot in command must report to the FAA, in a manner acceptable to the Administrator, any operation of the small unmanned aircraft involving at least:
(a) Serious injury to any person or any loss of consciousness; or
(b) Damage to any property, other than the small unmanned aircraft, unless one of the following conditions is satisfied:
(1) The cost of repair (including materials and labor) does not exceed $500; or
(2) The fair market value of the property does not exceed $500 in the event of total loss.
--------------------------------------------------------------------------------------------------------------------------------
The FAA (107) does not test you on whether or not you are in compliance with another federal agency. That said; it is my understanding that if you have an accident with a drone the
does trigger a report to the FAA then it would be wise to also report to the NTSB.