MongoDB interview questions part 41
MongoDB interview questions part 41
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Total Questions: 20
1. _________ prevents the current member from seeking election as primary for a period of time.
Correct Answer is : rs.freeze()
2. _________ returns the replica set configuration document.
Correct Answer is : rs.conf()
3. Point out the correct statement :
Correct Answer is : The output of rs.printReplicationInfo() is identical to that of db.printReplicationInfo()
4. ________ prints a report of the status of the replica set from the perspective of the primary.
Correct Answer is : rs.printReplicationInfo()
5. _________ re-configures a replica set by applying a new replica set configuration object.
Correct Answer is : rs.reconfig()
6. __________ sets the member that this replica set member will sync from, overriding the default sync target selection logic.
Correct Answer is : rs.syncFrom()
7. rs.reconfig() provides a wrapper around the ___________ command
Correct Answer is : replSetReconfig
8. ________ sets the slaveOk property for the current connection.
Correct Answer is : rs.slaveOk()
9. Before mongod creates an oplog, you can specify its size with the __________ option.
Correct Answer is : oplogSizeMB
10. Point out the wrong statement:
Correct Answer is : The primary members then copy and apply these operations in an asynchronous process
11. The oplog must translate multi-updates into individual operations in order to maintain ____________
Correct Answer is : idempotency
12. Use _________ from a secondary member and the replication status output to assess the current state of replication
Correct Answer is : db.getReplicationInfo()
13. Point out the correct statement :
Correct Answer is : For proper replication operations, entries in the oplog must be idempotent
14. For a member to sync from another, both members must have the same value for the _________ setting.
Correct Answer is : buildIndexes
15. Secondaries apply operations from the primary asynchronously to provide __________ consistency.
Correct Answer is : eventual
16. When ______________ is true, the mongod instance saves all documents migrated from the shard to the moveChunk directory of the storage.dbPath.
Correct Answer is : sharding.archiveMovedChunks
17. Replication _______ is a delay between an operation on the primary and the application of that operation from the oplog to the secondary.
Correct Answer is : lag
18. A delayed member may show as 0 seconds behind the primary when the inactivity period on the primary is greater than the ________ value.
Correct Answer is : slaveDelay
19. Replica set configuration requires that the _______ have a value that is consistent among all members of the set.
Correct Answer is : replSetName
20. Point out the correct statement :
Correct Answer is : All of the mentioned
