Explanation:sh._checkFullName()	tests a namespace to determine if its well formed. 5. Point out the wrong statement :
A. The best way to ensure a field has unique values is to generate universally unique identifiers (UUID,) such as MongoDB’s ‘ObjectId values
B. Most deployments will not need to shard the files collection
C. The files collection is typically small, and only contains metadata
D. None of the mentioned
Answer:A
Explanation:sh._checkFullName()	tests a namespace to determine if its well formed. 5. Point out the wrong statement :
A. The best way to ensure a field has unique values is to generate universally unique identifiers (UUID,) such as MongoDB’s ‘ObjectId values B. Most deployments will not need to shard the files collection C. The files collection is typically small, and only contains metadata D. None of the mentioned
Explanation:None of the required keys for GridFS lend themselves to an even distribution in a sharded situation. 6. _________ reports on the last chunk migration.