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Deloitte interview themes

What people report studying for — not a take-home dump. Last editorial update 2026-06-01.

DiagramsMedallionClient constraints

Rounds you should expect

  1. Case

    Draw bronze/silver/gold for a client who already has Synapse and wants Fabric. What you would not migrate first.

From the question bank

  • medium · Warehouse · Snowflake

    Someone DELETED gold.orders. What do you do in the first ten minutes?

    Practice →
  • medium · Warehouse · Snowflake

    Zero-copy clone of prod for a destructive test. What do you warn finance?

    Practice →
  • easy · Warehouse · Snowflake

    Cortex Analyst returns doubled revenue. First check?

    Practice →
  • hard · Warehouse · Snowflake

    Secure view vs masking policy vs row-access policy. One sentence each.

    Practice →
  • easy · Warehouse · Databricks

    Unity Catalog vs Hive metastore. Why do interviewers care in 2026?

    Practice →
  • easy · Warehouse · Databricks

    Unity Catalog volume vs a DBFS path in a notebook. What do you refuse to merge?

    Practice →
  • medium · Cloud · AWS

    Redshift DISTKEY / SORTKEY (or AUTO). What mistake shows up as a broadcast of a 2 TB table?

    Practice →
  • hard · Cloud · AWS

    Lake Formation LF-Tags vs bucket policy. When is LF worth the ticket?

    Practice →
  • easy · Cloud · Azure

    Self-hosted IR versus Azure IR. When is on-prem the only answer?

    Practice →
  • medium · Cloud · Azure

    Purview vs “the pipeline wiki.”

    Practice →
  • medium · Cloud · Azure

    Fabric Direct Lake vs Import. When is Direct Lake the wrong choice?

    Practice →
  • medium · Cloud · Azure

    Purview scan never sees your gold tables. First three causes?

    Practice →

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