Answer-first summary for fast verification
Answer: It treats a live data stream as an unbounded table where new data is continuously appended as new rows.
The core abstraction of **Spark Structured Streaming** is that it treats a data stream as an **unbounded table** that is being continuously appended. This allows developers to write streaming queries the same way they would write batch queries against static tables. Spark then incrementally executes these queries as new data arrives. **Why the other options are incorrect:** * **Messaging System:** Structured Streaming is a stream-processing engine, not a messaging system; while it can read from Kafka, it does not use a Kafka-based abstraction for its internal model. * **GPU Usage:** The engine is built on Spark SQL and uses CPU-based DataFrame transformations; GPU usage is not a part of its general programming model. * **State Management:** While Spark can maintain state for specific operations (like windowed aggregations), the general model is defined by the unbounded table concept, not by maintaining state for cached stages across all transformations.
Author: LeetQuiz Editorial Team
Ultimate access to all questions.
No comments yet.
Which statement best describes the fundamental programming model of Apache Spark Structured Streaming?
A
It functions as a distributed messaging system designed to serve as a direct replacement for Apache Kafka.
B
It treats a live data stream as an unbounded table where new data is continuously appended as new rows.
C
It utilizes specialized GPU-accelerated processing to achieve maximum data throughput for streaming workloads.
D
It relies on a distributed network of nodes to maintain incremental state values for all cached stages by default.