Which database type is optimized for massive write-heavy workloads and time-series data?

Which database type is optimized for massive write-heavy workloads and time-series data?

• A. Graph Database
• B. Wide-Column Database
• C. Primary Key
• D. Denormalization

Answer: (B)

This question tests understanding of which database approach handles huge write volumes and time-stamped, append-heavy data well. A wide-column database is designed for exactly that pattern. It stores data in column families, and rows can have many columns, with writes often being append-style as new time points or metrics are added. This structure scales out across many machines, enabling exceptionally high write throughput, which is essential for time-series workloads that continuously generate large streams of observations for many entities. It also supports efficient compression and storage of large, wide rows, making it practical to keep extensive time-series data without prohibitive costs. By comparison, graph databases focus on traversing relationships, denormalization is a modeling technique rather than a storage model, and a primary key is a basic identifier concept, not a database type optimized for this workload.

This question tests understanding of which database approach handles huge write volumes and time-stamped, append-heavy data well. A wide-column database is designed for exactly that pattern. It stores data in column families, and rows can have many columns, with writes often being append-style as new time points or metrics are added. This structure scales out across many machines, enabling exceptionally high write throughput, which is essential for time-series workloads that continuously generate large streams of observations for many entities. It also supports efficient compression and storage of large, wide rows, making it practical to keep extensive time-series data without prohibitive costs. By comparison, graph databases focus on traversing relationships, denormalization is a modeling technique rather than a storage model, and a primary key is a basic identifier concept, not a database type optimized for this workload.