Explanation:If you must modify the config database, use mongodump to create a full backup of the config database. 3. The _________ collection stores a document for each sharded collection in the cluster.
A. help
B. shards
C. collections
D. All of the mentioned
Answer:A
Explanation:If you must modify the config database, use mongodump to create a full backup of the config database. 3. The _________ collection stores a document for each sharded collection in the cluster.
A. help B. shards C. collections D. All of the mentioned
Explanation:Shard keys are immutable and cannot be changed after insertion. 4. You can return a list of the collections, with the following helper: