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Top 42 RabbitMQ & Cassandra Interview Questions & Answers (2026)
42 Questions
20 Beginner
13 Intermediate
9 Advanced
About RabbitMQ & Cassandra
This technology is widely used in software development and is a frequent topic in technical interviews at companies of all sizes.
What to Expect in a RabbitMQ & Cassandra Interview
Interviews cover both foundational concepts and practical application of this technology, with questions ranging from definitions to architectural decision-making.
How to Use This Guide
Work through questions in order of difficulty to build your understanding progressively. Bookmark challenging questions and revisit them before your interview.
Curated by Tech Baithak Editorial Team · Last updated: May 2026
Beginner
20 questions
Core concepts every RabbitMQ & Cassandra developer must know.
01
What is RabbitMQ?
02
What is the difference between RabbitMQ and Kafka?
03
What are RabbitMQ exchanges?
04
What are RabbitMQ queues?
05
What is a message binding in RabbitMQ?
06
What is message acknowledgement in RabbitMQ?
07
What is a dead letter exchange (DLX) in RabbitMQ?
08
What is Apache Cassandra?
09
What is Cassandra's data model?
10
What is the CAP theorem and how does Cassandra fit?
11
What is Cassandra's replication strategy?
12
What is Cassandra's consistency level?
13
What is RabbitMQ's publisher confirms?
14
What is Cassandra's partition key and why is it important?
15
What is Cassandra's write path?
16
What is a tombstone in Cassandra?
17
What is RabbitMQ's prefetch and QoS?
18
What is Cassandra's CQL (Cassandra Query Language)?
19
What is Cassandra's eventual consistency and how does it handle conflicts?
20
What is RabbitMQ's topic exchange?
Intermediate
13 questions
Practical knowledge for developers with hands-on experience.
01
How does Cassandra's read path work?
02
What is Cassandra's compaction and its types?
03
What are RabbitMQ's quorum queues?
04
How do you model time-series data in Cassandra?
05
What is Cassandra's consistency vs availability trade-off with tunable consistency?
06
What is Cassandra's anti-entropy repair?
07
What are RabbitMQ streams?
08
What is Cassandra's secondary index and materialized view?
09
What is data denormalization in Cassandra?
10
What are Cassandra lightweight transactions (LWT)?
11
What is Cassandra's vnodes (virtual nodes)?
12
How do you handle RabbitMQ message retries and exponential backoff?
13
What is Cassandra's coordinator node?
Advanced
9 questions
Deep expertise questions for senior and lead roles.
01
What are Cassandra's anti-patterns and how do you avoid them?
02
How does RabbitMQ handle message ordering and exactly-once delivery?
03
What is Cassandra multi-datacenter architecture and geo-distribution?
04
How does RabbitMQ federation and shovel work for multi-datacenter setups?
05
What is Cassandra's SASI index?
06
How do you implement the outbox pattern with RabbitMQ?
07
What are advanced Cassandra data modeling patterns?
08
What is the difference between RabbitMQ Classic, Quorum, and Stream queue types?
09
How does Cassandra handle schema migrations in production?
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42 questions total