Explanation:This data contains a mapping of the cluster’s data set to the shards. 4. The query router uses __________ to target operations to specific shards.
A. metadata
B. cluster
C. replica
D. All of the mentioned
Answer:A
Explanation:This data contains a mapping of the cluster’s data set to the shards. 4. The query router uses __________ to target operations to specific shards.
A. metadata B. cluster C. replica D. All of the mentioned
Explanation:For development and testing purposes only, each shard can be a single mongod instead of a replica set. 5. Point out the wrong statement :