_________ reports on the last chunk migration. Options: A . &nbspsh._checkMongos() B . &nbspsh.addShard() C . &nbspsh._lastMigration() D . &nbspAll of the mentioned

_________ reports on the last chunk migration.

Question

_________ reports on the last chunk migration.

Options:

A . sh._checkMongos()

B . sh.addShard()

C . sh._lastMigration()

D . All of the mentioned

Answer: Option C

The sh._lastMigration() method returns a document with details about the last migration performed on the database or collection.

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Question 1. Point out the wrong statement : ....

Question 2. Point out the wrong statement : ....

Question 3. __________ splits the chunk that contains the shard key value specified by the query at the chunk's median point. ....

Question 4. A _________ key is either an indexed field or an indexed compound field that exists in every document in the collection....compound field that exists in every document in the collection.

Question 5. To assign a tag to a range of shard keys use the _________ method when connected to a mongos instance. ....

Question 6. _______ scaling adds more CPU and storage resources to increase capacity. ....

Question 7. The source shard is responsible for incoming ______ operations for the chunk. ....

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