MongoDB interview questions part 49
MongoDB interview questions part 49
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. ________ returns a document that reports on the status of the replica set.
Correct Answer is : replSetGetStatus
2. __________ enables or disables a maintenance mode, which puts a secondary node in a RECOVERING state.
Correct Answer is : replSetMaintenance
3. Point out the correct statement :
Correct Answer is : If you run rs.syncFrom() during initial sync, MongoDB produces no error messages
4. When enabled replSetMaintenance: true, the member enters the ________ state.
Correct Answer is : RECOVERING
5. ________ applies a new configuration to an existing replica set.
Correct Answer is : replSetReconfig
6. Which of the command is for master-slave replication only ?
Correct Answer is : resync
7. _______ is an internal command that applies oplog entries to the current data set.
Correct Answer is : applyOps
8. __________ explicitly override the default logic for selecting a member to replicate from.
Correct Answer is : replSetSyncFrom
9. The preferred way to clear the _________ flag from a chunk is to attempt to split the chunk.
Correct Answer is : jumbo
10. Point out the correct statement:
Correct Answer is : In some instances, MongoDB cannot split the no-longer jumbo chunk, such as a chunk with a range of single shard key value
11. _________ is used to remove tags from a particular shard.
Correct Answer is : sh.removeShardTag()
12. ________ associates a shard with a tag or identifier.
Correct Answer is : sh.addShardTag
13. Point out the wrong statement :
Correct Answer is : The mongod provides a helper for removing a tag range
14. To assign a tag to a range of shard keys use the _________ method when connected to a mongos instance.
Correct Answer is : sh.addTagRange()
15. Each document in the tags holds the ________ of the sharded collection and a minimum shard key value.
Correct Answer is : namespace
16. Which of the following parameter represents minimum value of the shard key range to include in the tag ?
Correct Answer is : minimum
17. Use ________ to ensure that the balancer migrates documents that exist within the specified range to a specific shard .
Correct Answer is : sh.addShardTag()
18. Which of the following parameter denotes name of the shard from which to remove a tag ?
Correct Answer is : shard
19. To view a role’s information, you must be explicitly granted the role or must have the _________ action on the role’s database.
Correct Answer is : viewRole
20. Point out the correct statement :
Correct Answer is : All of the mentioned
