Explanation:The user chooses a shard key, which determines how the data in a collection will be distributed. 5. Point out the wrong statement :
A. Each replica set member will act in the role of primary replica only
B. The primary replica performs all writes and reads by default
C. Secondaries can also perform read operations, but the data is eventually consistent by default
D. None of the mentioned
Answer:A
Explanation:The user chooses a shard key, which determines how the data in a collection will be distributed. 5. Point out the wrong statement :
A. Each replica set member will act in the role of primary replica only B. The primary replica performs all writes and reads by default C. Secondaries can also perform read operations, but the data is eventually consistent by default D. None of the mentioned
Explanation:Each replica set member may act in the role of primary or secondary replica at any time. 6. MongoDB can be used as a ____________, taking advantage of load balancing and data replication features over multiple machines for storing files.