Understanding Replication in MongoDB: Intermediate-Level Quiz

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Understanding Replication in MongoDB

This quiz covers MongoDB replication, focusing on how replica sets ensure data redundancy and high availability. You’ll explore key concepts like primary and secondary nodes, data synchronization, and failover mechanisms. Good luck!

1 / 20

A replica set in MongoDB is a group of mongod processes that provide redundancy and high availability. True or False?

2 / 20

Fault tolerance is an effect of replica set size, but the relationship is not direct

3 / 20

An arbiter will always be an arbiter whereas a primary may step down and become a secondary and a _________ may become the primary during an election.

4 / 20

When a primary does not communicate with the other members of the set for more than ____ seconds, the replica set will attempt to select another member to become the new primary.

5 / 20

_________ replicate operations from the primary to maintain an identical data set.

6 / 20

If the current primary becomes unavailable, the replica set holds an ______ to choose which of the secondaries becomes the new primary.

7 / 20

You can also maintain copies in different data centers to increase the locality and availability of data for distributed applications. True or False?

8 / 20

A replica set can have up to ______ members but only 7 voting members.

9 / 20

How many types of members exist in replica set?

10 / 20

A replica set can have only ________ primary.

11 / 20

All other instances, secondaries, apply operations from the _________ so that they have the same data set.

12 / 20

When a replica set has one and only one primary, reads from that primary provide ______ consistency.

13 / 20

You may add an extra mongod instance to a replica set as an __________.

14 / 20

_________ member is used to support dedicated functions, such as backup or reporting.

15 / 20

By default, an application directs its ____ operations to the primary member.

16 / 20

To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.

17 / 20

Removing a member from the replica set does not always increase the fault tolerance. True or False?

18 / 20

Which of the following may be non-voting or priority 0?

19 / 20

To support replication, the primary records all changes to its data sets in its _______.

20 / 20

Clients have the ability to send read and write operations to different servers. True or False?

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Replication in MongoDB involves creating multiple copies of data across different servers, ensuring high availability and fault tolerance. It also involves setting up replica sets, managing primary and secondary nodes, and handling failover events to keep data accessible even during system failures.

This quiz is for database administrators and IT professionals managing high-availability systems who wish to test their ability to ensure data reliability, disaster recovery, and seamless failover in MongoDB environments.

Good luck!