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.
A. sh._checkMongos()
B. sh.addShard()
C. sh._lastMigration()
D. All of the mentioned
Answer:A
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.
A. sh._checkMongos() B. sh.addShard() C. sh._lastMigration() D. All of the mentioned
Explanation:The sh._lastMigration() method returns a document with details about the last migration performed on the database or collection. 7. _________ removes an association between a range shard keys and a shard tag.