4. Storage

Nosql Databases — Quiz

Test your understanding of nosql databases with 5 practice questions.

Practice Questions

Question 1

Which partitioning strategy uses a centralized lookup table mapping each key to a specific node, allowing flexible placement but risking a single point of failure?

Question 2

A real-time analytics system ingests high-volume events with uniformly distributed random keys and requires maximal write throughput. Which database type and partitioning strategy best fit this use case?

Question 3

In Apache Cassandra with replication factor $N=5$, write quorum $W=2$, and read quorum $R=4$, does this configuration guarantee strong consistency?

Question 4

Which consistency model provides bounded staleness guarantees by allowing reads that may lag writes by at most a specified time interval?

Question 5

In Apache Cassandra, what is the purpose of specifying a TTL (time-to-live) on column values?