Geo-replication strategies in Kafka - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is geo-replication in Kafka?

Geo-replication in Kafka means copying data across different geographic locations to improve availability and disaster recovery.

beginner

Name two common Kafka geo-replication tools or methods.

Two common methods are MirrorMaker 2 and Confluent Replicator, which help copy topics between Kafka clusters in different regions.

intermediate

What is the main difference between active-active and active-passive geo-replication?

Active-active means multiple clusters can read and write data simultaneously, while active-passive means only one cluster writes and others are backups.

intermediate

Why is data consistency a challenge in geo-replication?

Because data is copied across distant locations, network delays and conflicts can cause data to be out of sync or inconsistent temporarily.

advanced

How does MirrorMaker 2 handle topic replication?

MirrorMaker 2 uses the Kafka Connect framework to replicate topics, consumer offsets, and configurations between clusters, supporting automatic failover.

What is the purpose of geo-replication in Kafka?

A To delete old Kafka logs

B To compress Kafka messages

C To encrypt Kafka topics

D To copy data across regions for availability and disaster recovery

Geo-replication copies data across regions to keep it safe and available even if one location fails.

Which tool is commonly used for Kafka geo-replication?

A MirrorMaker 2

B Kafka Streams

C Kafka Connect Sink

D ZooKeeper

MirrorMaker 2 is designed specifically to replicate Kafka topics between clusters.

In active-passive geo-replication, which cluster handles writes?

A Both clusters simultaneously

B Only the passive cluster

C Only the active cluster

D Neither cluster

Only the active cluster accepts writes; the passive cluster is a backup.

What challenge does network latency cause in geo-replication?

A Data inconsistency

B Faster replication

C More storage space

D Automatic topic creation

Network delays can cause data to be temporarily out of sync between clusters.

MirrorMaker 2 is built on which Kafka framework?

A Kafka Streams

B Kafka Connect

C Kafka Producer API

D Kafka Consumer API

MirrorMaker 2 uses Kafka Connect to manage replication tasks.

Explain the difference between active-active and active-passive geo-replication strategies in Kafka.

Think about how many clusters can write data at the same time.

Describe how MirrorMaker 2 helps with Kafka geo-replication.

Focus on the framework MirrorMaker 2 is built on and what it replicates.