CASSANDRA Professional Development 2

Question 1

Which certification is offered by DataStax specifically for Apache Cassandra professionals?

Accepted Answer

DataStax Certified Apache Cassandra Administrator

Answer

DataStax offers the DataStax Certified Apache Cassandra Administrator (DCAA) credential for Cassandra professionals.

Question 2

When preparing for a Cassandra administrator role, which skill is most critical to demonstrate in interviews?

Accepted Answer

Understanding of data modeling around query patterns

Answer

Cassandra data modeling is query-driven, so designing tables around anticipated queries is a foundational skill interviewers test.

Question 3

Which open-source tool is most commonly recommended for learning Cassandra locally before working in production?

Accepted Answer

Docker with the official cassandra image

Answer

Running the official Cassandra Docker image is the fastest way to spin up a local instance for learning and development.

Question 4

What community resource provides official Apache Cassandra mailing lists, documentation, and issue tracking?

Accepted Answer

The Apache Software Foundation project site

Answer

Apache Cassandra is hosted under the Apache Software Foundation, which provides mailing lists, JIRA, and official docs.

Question 5

A developer wants to transition from a relational DBA role to a Cassandra DBA. What is the most important mindset shift required?

Accepted Answer

Replacing transactions with eventual consistency and query-first design

Answer

The biggest shift is embracing eventual consistency and designing schemas around queries rather than data relationships.

CASSANDRA - Apache Cassandra Database Practice Test