Databricks-DE-Pro Monitoring and Alerting Practice Question
A Data Engineer needs to ensure that a notebook job is not consuming excessive costs. Which monitoring tool provides the best view of DBU consumption per job?
⚠ Common exam trap
Candidates often confuse 'Billable Usage' system tables with 'Cluster Logs' or 'Query History', failing to recognize that cost-specific tracking is handled by the dedicated billing system tables.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Billable Usage System Table
The Databricks Billable Usage system table tracks DBU consumption at a granular level, including by job and cluster. Analyzing this data is essential for cost governance, allowing engineers to identify inefficient workflows and optimize resource allocation. By monitoring these trends, companies can ensure their data platform remains cost-effective, preventing unexpected budget overruns and providing the data necessary to justify investments in infrastructure or job refactoring.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cluster event logs
Why it's wrong here
Cluster event logs track cluster state changes, such as start and stop events. While they can be used to estimate uptime, they do not provide the detailed DBU usage data required for accurate cost attribution and granular job-level budget analysis.
- ✗
Delta Live Tables event logs
Why it's wrong here
These logs are specific to DLT pipelines and focus on data quality and status. They do not contain the comprehensive DBU billing information required to track costs across all notebook jobs or other types of compute tasks in the workspace.
- ✓
Billable Usage System Table
Why this is correct
The Billable Usage System Table is the authoritative source for DBU consumption metrics. It associates usage with specific jobs, clusters, and tags, making it the most effective tool for calculating the cost of specific workflows and enforcing cost management policies.
- ✗
Notebook execution history
Why it's wrong here
Notebook execution history shows runtime duration and status, but it does not include DBU consumption data or associated costs. Relying on duration alone is an inaccurate proxy for cost, as different instance types consume DBUs at significantly different rates.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Databricks exam blueprint
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