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RAN-DBDEA-00185
Ranvier · DBDEA

Exam DBDEA Topics: platform Difficulty: medium

A team's latency-sensitive Lakeflow Jobs run on classic job clusters, and every run still loses four to six minutes while cloud instances are acquired and bootstrapped. The team wants to cut that startup delay for its most time-critical nightly runs. Which approach should the team take?

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  1. A. Keep one all-purpose cluster running around the clock and point every job at it, so no job run ever waits for a cluster to start
  2. B. Rely on an instance pool's pre-warmed instances, which deliver instant cluster startup with no idle-instance charges on the cloud bill
  3. C. Attach the job clusters to an instance pool, which keeps idle instances ready and cuts startup time at the cost of idle billing
  4. D. Move the jobs onto a pool-backed SQL warehouse, because instance pools can only accelerate SQL warehouses
Reveal answer

Correct answer: Attach the job clusters to an instance pool, which keeps idle instances ready and cuts startup time at the cost of idle billing

Reference: https://docs.databricks.com/aws/en/compute

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Official Answer (C): Attach the job clusters to an instance pool, which keeps idle instances ready and cuts startup time at the cost of idle billing

⚓ Official Documentation Anchor: https://docs.databricks.com/aws/en/compute
Ranvier · DBDEA

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