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Analytics Architecture and Reporting Questions

Designing and operating end to end analytics and reporting platforms that translate business requirements into reliable and actionable insights. This includes defining metrics and key performance indicators for different audiences, instrumentation and event design for accurate measurement, data ingestion and transformation pipelines, and data warehouse and storage architecture choices. Candidates should be able to discuss data modeling for analytics including semantic layers and data marts, approaches to ensure metric consistency across tools such as a single source of truth or metric registry, and trade offs between query performance and freshness including batch versus streaming approaches. The topic also covers dashboard architecture and visualization best practices, precomputation and aggregation strategies for performance, self service analytics enablement and adoption, support for ad hoc analysis and real time reporting, plus access controls, data governance, monitoring, data quality controls, and operational practices for scaling, maintainability, and incident detection and resolution. Interviewers will probe end to end implementations, how monitoring and quality controls were applied, and how stakeholder needs were balanced with platform constraints.

HardTechnical
0 practiced
Event schemas evolve frequently. Propose a robust approach to manage schema evolution for event-driven pipelines (including producers, Kafka, stream processors, and the warehouse) without breaking downstream dashboards. Mention tools/formats (Avro/Protobuf/JSON Schema) and compatibility strategies.
MediumTechnical
0 practiced
How would you implement automated data lineage across ETL jobs, dbt models, and BI dashboards so analysts can trace a dashboard number back to row-level sources? Describe components, metadata you would capture, and how you'd keep lineage up to date.
HardSystem Design
0 practiced
Design RBAC and row-level security for a BI platform used by 50k employees with varying access needs and sensitive fields. Describe group/role design, integration with identity provider (SSO), dynamic attribute-based access, how to scale RLS enforcement in the warehouse vs BI layer, and audit capabilities.
MediumTechnical
0 practiced
As query volumes rise and more teams run analytics, propose a set of strategies to optimize cloud warehouse costs (compute and storage). Include controls (budgeting, tagging), technical optimizations (clustering, materialized views, caching), and organizational policies (cost ownership, query quotas).
MediumTechnical
0 practiced
You're tasked with increasing self-service analytics adoption across the company. Outline a 90-day program that covers training, template dashboards, semantic layer governance, data literacy, and metrics of success. How would you measure adoption and prevent proliferation of inconsistent reports?

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