Point out the wrong statement :
A. Database servers store the metadata for a sharded cluster
B. Always back up the config database before doing any maintenance on the config server
C. The mongos instances cache metadata and use it to route read and write operations to shards
D. None of the mentioned
Answer:A
Point out the wrong statement :
A. Database servers store the metadata for a sharded cluster B. Always back up the config database before doing any maintenance on the config server C. The mongos instances cache metadata and use it to route read and write operations to shards D. None of the mentioned