1.

Point out the correct statement.(a) The mechanics of snapshots depend on the underlying storage system(b) To get a consistent snapshot of a sharded system, you must disable the balancer(c) If your storage system does not support snapshots, you can copy the files directly using cp, rsync, or a similar tool(d) All of the mentionedI have been asked this question in an interview.I'm obligated to ask this question of Operational Strategies in chapter GridFS, BSON Datatype and Administration Concepts of MongoDB

Answer»

The CORRECT OPTION is (d) All of the mentioned

The best explanation: Backups produced by copying the underlying DATA do not support point in time recovery for replica sets and are DIFFICULT to MANAGE for larger sharded clusters.



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