Explanation: As a result of enabling usePowerOf2Sizes, MongoDB must allocate more disk space relative to data size. 8. Which field does not support TTL indexes ?
A. _identity
B. _option
C. _id
D. None of the mentioned
Answer:A
Explanation: As a result of enabling usePowerOf2Sizes, MongoDB must allocate more disk space relative to data size. 8. Which field does not support TTL indexes ?
A. _identity B. _option C. _id D. None of the mentioned
Explanation:You cannot create a TTL index on a capped collection because MongoDB cannot remove documents from a capped collection.