FREE Cassandra Professional Development Questions and Answers
What Cassandra version do you use?
TTL, what do you mean by this?
Explanation:
In computer networking, TTL stands for "Time to Live." It is a field in the header of an IP (Internet Protocol) packet that indicates the maximum number of routers that the packet can pass through before it is discarded.
Which Cassandra feature enables simultaneous execution of many queries?
Explanation:
In Cassandra, the BATCH feature allows you to execute multiple queries at once as a single atomic operation.
By "Table in Cassandra," what do you mean?
Explanation:
In Cassandra, a table is a data structure that stores related data in rows and columns. Tables in Cassandra are similar to tables in relational databases, but they are implemented differently and have some unique characteristics.
What is Cassandra a mix of?
Explanation:
Cassandra is a distributed, highly available, and fault-tolerant NoSQL database system that combines the data model of Google's Bigtable with the distributed systems design of Amazon's Dynamo.
Only columns with a __ that are not the primary key can use the where clause.
Explanation:
In Cassandra, the WHERE clause can be used to filter the data based on certain conditions. When querying data, the WHERE clause can be applied to any column in the table, whether it is a primary key or a non-key column. However, when querying a table based on a non-key column, an index is required to be created on that column.
