Cassandra Interview Questions for 3 Years Experience
OLA(Ani technologies Pvt Ltd) Interview Question
- Introduce yourself.
- Where are you working and what is your current project? 3. What is the size of the cluster?
- Why do we need to set consistency?
- What is the cap theorem?
- What are the daily tasks?
- What are the major issues you have faced in your career which are challenging for you?
- How do you add a new node to a cluster?
- How can a node in an existing cluster be replaced?
- What will you do if you are replacing a node while it is up/running, and what will you do if that node is down?
- Give some basic shell scripting examples.
- Do you have any experience with AWS products?
- How to handle high tombstones issues?
- Why did you face latency issues in your recent work and how did you handle that situation?
- What is the replication factor you have set in your company, and why do we set the replication factor?
- What is the partition key and what is the function of the partition key?
- How is the hash function useful in cassandra?
- Why does the cassandra have a ring structure?
- What is Cassandra’s architecture?
- What level of consistency have you set ?
- How can data be moved from one environment to another?
- How do you backup and restore your data?
- If a node fails and you haven’t backed up your data. Is it possible to recover data in that node? If it is then, how?
- Why do we need repairs?
- What parameters do you need to change in the.yaml file when you’re in the middle of the bootstrap process? And why are we changing all those parameters?
- How do you handle errors caused by insufficient disc space?
- How to tune the cassandra database?
DataXSchool Learning Center
In the world of big data, NoSQL databases are becoming more popular due to their scalability and high performance. Apache Cassandra is one such NoSQL database that is widely used for handling large amounts of data across multiple data centers. However, managing and maintaining Cassandra can be challenging, which is where DataXSchool’s Cassandra DBA course comes in. In this blog, we will explore what the Cassandra DBA course is, what it offers, and why it is essential for anyone working with Cassandra.
What is the Cassandra DBA Course?
DataXSchool’s Cassandra DBA course is a comprehensive training program that covers everything you need to know about managing and maintaining Cassandra databases. The course covers various aspects of Cassandra, including installation and configuration, data modeling, performance tuning, backup and recovery, and security. The course is designed for students, professionals, and anyone who wants to learn how to manage and maintain Cassandra databases.
What Does the Cassandra DBA Course Offer?
The Cassandra DBA course offered by DataXSchool covers a wide range of topics in Cassandra databases, including data modeling, performance tuning, backup and recovery, and security. The course is designed to be practical, with hands-on projects and assignments that enable students to apply what they have learned in real-world scenarios.
The course is self-paced, allowing students to learn at their own pace. The platform also offers expert instructors who are available to provide support and guidance to students throughout the course. The course comes with a certificate upon completion, which is an excellent addition to any resume.
Why is the Cassandra DBA Course Essential?
Cassandra is widely used for handling large amounts of data across multiple data centers. However, managing and maintaining Cassandra can be challenging. The Cassandra DBA course offered by DataXSchool is essential for anyone working with Cassandra. Here are some reasons why:
Expert Instructors: The course is taught by expert instructors who have years of experience in Cassandra databases. This ensures that students receive high-quality education and training.
Practical Experience: The course offers practical projects and assignments that enable students to apply what they have learned in real-world scenarios. This ensures that students have the skills and knowledge necessary to manage and maintain Cassandra databases effectively.
Flexible Learning: The course is self-paced, allowing students to learn at their own pace. This makes it easier for students to balance their education with other commitments.
Certification: The course comes with a certificate upon completion, which is an excellent addition to any resume. The certification demonstrates to potential employers that you have the skills and knowledge necessary to manage and maintain Cassandra databases effectively.
Conclusion
Cassandra is widely used for handling large amounts of data across multiple data centers. However, managing and maintaining Cassandra can be challenging. The Cassandra DBA course offered by DataXSchool is essential for anyone working with Cassandra. With expert instructors, practical experience, flexible learning options, and a certification upon completion, the Cassandra DBA course is the perfect choice for anyone looking to learn how to manage and maintain Cassandra databases effectively. Sign up today and start your journey towards becoming a Cassandra DBA expert.
