Bird
0
0

A Kafka cluster with multi-datacenter replication is not available after one datacenter fails. What is a likely cause?

medium📝 Debug Q6 of 15
Kafka - Multi-Datacenter and Replication
A Kafka cluster with multi-datacenter replication is not available after one datacenter fails. What is a likely cause?
AClients are connected to the surviving datacenter
BKafka brokers are overloaded with messages
CReplication factor is set to 1
DData retention policy is set to infinite
Step-by-Step Solution
Solution:

  1. Step 1: Check replication factor setting

    If replication factor is 1, data exists only in one datacenter.

  2. Step 2: Understand failure impact

    If that datacenter fails, no copies remain, causing unavailability.

  3. Final Answer:

    Replication factor is set to 1 -> Option C

  4. Quick Check:

    Replication factor 1 = no multi-datacenter availability [OK]
Quick Trick: Replication factor must be >1 for availability [OK]
Common Mistakes:
  • Blaming broker overload for availability loss
  • Assuming clients connected correctly solve failure
  • Confusing retention policy with availability

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Kafka Quizzes
Advanced Stream Processing - Exactly-once stream processing - Quiz 15hard Advanced Stream Processing - State stores - Quiz 13medium Event-Driven Architecture - Saga pattern for distributed transactions - Quiz 8hard Kubernetes and Cloud Deployment - Why cloud-native deployment matters - Quiz 2easy Kubernetes and Cloud Deployment - Auto-scaling strategies - Quiz 2easy Multi-Datacenter and Replication - MirrorMaker 2 concept - Quiz 6medium Security - Security best practices - Quiz 1easy Security - Client authentication configuration - Quiz 10hard Security - ACL-based authorization - Quiz 15hard Security - SASL authentication - Quiz 10hard