Cribl Data Routing & Processing 5 — Questions and Answers
Question 1: Which Cribl Stream function is used to aggregate multiple events into a single summary event over a time window?
- Reduce (Correct answer)
- Aggregate
- Merge
- Rollup
Correct answer: Reduce
The Reduce function accumulates multiple events over a specified time window and emits a single aggregated summary event.
Question 2: In Cribl Stream, what is the purpose of a 'Collector' source?
- Pushes data from Cribl to an external system
- Pulls data from external systems on a schedule (Correct answer)
- Collects metrics from Cribl workers
- Aggregates events at the leader node
Correct answer: Pulls data from external systems on a schedule
A Collector source is configured to pull data from external systems (like S3, REST APIs, or databases) on a defined schedule.
Question 3: What distinguishes a Cribl Stream 'Worker Group' from a single worker deployment?
- Worker Groups support more pipeline functions
- Worker Groups allow multiple workers to share load and configuration centrally (Correct answer)
- Only Worker Groups can use persistent queuing
- Worker Groups bypass route evaluation
Correct answer: Worker Groups allow multiple workers to share load and configuration centrally
A Worker Group is a set of workers managed from a central Leader node, sharing configuration while distributing data processing load.
Question 4: Which Cribl Stream pipeline function would you use to drop events matching a specific condition without forwarding them?
- Null Output
- Drop (Correct answer)
- Filter
- Blackhole
Correct answer: Drop
The Drop function permanently removes events from the pipeline when a specified filter condition evaluates to true.
Question 5: In Cribl Stream, what does the 'Event Breaker' function do when applied to a streaming source?
- Splits merged events back into individual events based on a delimiter or regex (Correct answer)
- Breaks the event pipeline on error conditions
- Pauses event flow during high load
- Converts events to metrics at a boundary
Correct answer: Splits merged events back into individual events based on a delimiter or regex
The Event Breaker splits raw streams of data into discrete events using configurable delimiters such as newlines or regular expressions.
Question 6: What is the key benefit of using Cribl Stream's 'Schema-on-Read' approach to data routing?
- Events are validated against a schema before ingestion
- Events are stored raw and structured only when queried
- Routing decisions can be made before parsing fields (Correct answer)
- All fields are indexed automatically at the source
Correct answer: Routing decisions can be made before parsing fields
Schema-on-Read lets Cribl route and filter events using raw patterns before expensive parsing occurs, improving efficiency.
Question 7: In Cribl Stream, which setting on an output destination controls how many events are batched together before being sent?
- Max record size
- Compress threshold
- Batch size (Correct answer)
- Flush interval
Correct answer: Batch size
The Batch size setting determines how many events are grouped into a single payload before the output sends them to the destination.
Cribl Data Routing & Processing 5
Which Cribl Stream function is used to aggregate multiple events into a single summary event over a time window?