MongoDB Mock Test 9 - Sanfoundry

10%

Question 1 of 10

1. Point out the correct statement.

The output of rs.printReplicationInfo() is identical to that of db.printReplicationInfo()

rs.printinfo() prints a formatted report of the replica set member’s oplog

rs.printReplicationInfo() formats and prints the data returned by db.allReplicationInfo()

none of the mentioned

Question 1 of 10

Question 2 of 10

2. In a sharded cluster _______ do not interact with hidden members.

all of the mentioned

mongos

mongostore

mongod

Question 2 of 10

Question 3 of 10

3. _________ prevents the current member from seeking election as primary for a period of time.

rs.conf()

rs.freeze()

rs.printReplicationInfo()

secondary

Question 3 of 10

Question 4 of 10

4. Point out the wrong statement.

A rollback is necessary only if the primary had accepted write operations that the secondaries had not successfully replicated before the primary stepped down

None of the mentioned

When the primary rejoins the set as a secondary, it reverts, or “rolls back,” its write operations to maintain database consistency with the other members

MongoDB attempts for rollbacks, which should be rare

Question 4 of 10

Question 5 of 10

5. Point out the wrong statement.

To block a member from seeking election as primary, assign it a priority of 0

All of the mentioned

Hidden members, delayed members, and arbiters all have priority set to 0

Before an election the primary opens all open client connections

Question 5 of 10

Question 6 of 10

6. __________ sets the member that this replica set member will sync from, overriding the default sync target selection logic.

rs.stepDown()

rs.reconfig()

rs.syncFrom()

rs.remove()

Question 6 of 10

Question 7 of 10

7. mongorestore recreates indexes recorded by _____________

bsondump

mongostore

mongodump

all of the mentioned

Question 7 of 10

Question 8 of 10

8. Point out the wrong statement.

For some deployments, implementing a custom replication sync topology may be more effective than the default sync target selection logic

MongoDB provides the ability to specify a host to use as a sync target

Primary capture data from the primary member to maintain an up to date copy of the sets’ data

None of the mentioned

Question 8 of 10

Question 9 of 10

9. _________ returns the replica set configuration document.

rs.conf()

none of the mentioned

rs.freeze()

rs.printReplicationInfo()

Question 9 of 10

Question 10 of 10

10. Replica sets provide high availability using automatic ________

all of the mentioned

replication

failure

failover

Question 10 of 10