A collection with a TTL index has __________ enabled.
(a) usePowerOf3Sizes
(b) usePowerOf2Sizes
(c) usePowerOf4Sizes
(d) none of the mentioned
(a) usePowerOf3Sizes
(b) usePowerOf2Sizes
(c) usePowerOf4Sizes
(d) none of the mentioned
Correct option is (b) usePowerOf2Sizes
To explain I would say: As a result of enabling usePowerOf2Sizes, MongoDB must allocate more disk space relative to data size.