Question

If the indexed field in a document is not a _____ or an array that holds a date value(s), the document will not expire.

(a) DATE

(b) TIME

(c) DATETIME

(d) All of the mentioned

I had been asked this question in unit test.

This interesting question is from Data from Collections topic in section Monitoring MongoDB and Optimization Strategies for MongoDB of MongoDB

Answer 1

Correct choice is (a) DATE

Easiest explanation: Built-in first-in-first-out property maintains the order of events while managing storage use.