What happens when a Flink job recovers from a checkpoint?

The job restores its state from the checkpoint and resumes processing from the corresponding position in the stream

The job discards all state and starts fresh

The job restarts from the beginning of the stream

The job switches to a backup cluster

What is the main difference between keyed state and operator state in Flink?

Keyed state is partitioned by key, while operator state is associated with a specific operator instance

Keyed state is read-only, while operator state is writable

Keyed state is for batch processing, while operator state is for stream processing

Keyed state is stored in memory, while operator state is stored on disk

What is the primary purpose of Apache Flink as a distributed processing engine?

To serve as a message broker for publishing and subscribing to data streams

To perform stateful computations over unbounded and bounded data streams

To provide a SQL-only interface for querying static data in a data warehouse

To provide a distributed file system for storing large datasets

What is the purpose of the parallel execution graph in Flink?

To provide a user-friendly visualization of the job

To define the input and output schemas of the job

To store the state of all operators in a central location

To specify how operators are distributed and executed in parallel across TaskManagers

Dell Data Engineering Optimize

Domain 5Objective 5

Describe Apache Flink and Its Architecture DATA-ENGINEERING-OPTIMIZE Practice Questions (Page 5)

Part of the Processing Streaming and IoT Data domain, which accounts for 20% of the DATA-ENGINEERING-OPTIMIZE exam.

30questions here

6free pages

10concepts

20%of the exam

Questions 21–25

21foundation · easy
What happens when a Flink job recovers from a checkpoint?
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22foundation · easy
What is the main difference between keyed state and operator state in Flink?
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23application · easy
A Flink cluster has 3 TaskManagers, each with 4 task slots. A job with parallelism 10 is submitted. How many slots will be left unused after the job starts?
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24foundation · easy
What is the primary purpose of Apache Flink as a distributed processing engine?
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25foundation · easy
What is the purpose of the parallel execution graph in Flink?
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