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Which of the following ddds an arbiter to a replica set?

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Which of the following ddds an arbiter to a replica set?

(a) rs.addArb()

(b) rs.addArbiter()

(c) rs.addtoArb()

(d) all of the mentioned

I had been asked this question during a job interview.

My doubt stems from Replication Processes in section Replication Concepts, Processes and Replication Set of MongoDB

1 Answer

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Best answer
Correct answer is (a) rs.addArb()

To elaborate: rs.addArb() adds a new arbiter to an existing replica set.

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