All read preference modes except _______ may return stale data.
(a) primary
(b) primaryPreferred
(c) secondary
(d) none of the mentioned
(a) primary
(b) primaryPreferred
(c) secondary
(d) none of the mentioned
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Correct answer is (a) primary
Explanation: Ensure that your application can tolerate stale data if you choose to use a non-primary mode.