Understanding Replication in MongoDB: Intermediate-Level Quiz

_________ for a replica set is the number of members that can become unavailable and still leave enough members in the set to elect a primary.

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

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

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.

With multiple copies of data on different database servers, replication protects a database from the loss of a single server.

A replica set can have only ________ primary.

The standard replica set deployment for production system is a ___-member replica set.

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

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

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

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

Replication provides redundancy and increases data availability. True or False?

_________ play a role in the elections that select a primary if the current primary is unavailable.

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

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

How many types of members exist in replica set?

In all cases, you can use replication to increase read capacity. True or False?

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

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.

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