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Practice with the full bank, then narrow into a path.

Your active path is foundations track, but the catalog stays broad by default so you can spot harder reps, switch contexts quickly, and still return to the path that best matches your current goal. Starter includes 160 free problems and marks 94 Pro-only problems before you open a gate.

254 problems
160 free
94 Pro
393 company scenarios
34 hard reps visible
160 runnable on starter
0 solved so far
Start broad, then focus when you want structure.

Company labels help frame practice in a familiar business context. They are directional study aids, not official interview guidance from the companies listed. We keep all paths visible first so hard questions do not disappear.

16 visible
Hard 1
Medium 4
Easy 11
160 free problems

· 94 Pro problems · Filter:

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Wayfair
Wayfair

Foundations Track

Asked at 4 companies
Easy
15 min
Complete Skill Coverage

At Wayfair, analysts are preparing a scorecard focused on complete skill coverage. Return the candidate_id values for candidates who have all three required ...

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Easy
15 min
Pages Without Followers

At Wayfair, analysts are preparing a scorecard focused on pages without followers. Return every page_id that has no follower rows. Sort by page_id.

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 20 companies
Easy
15 min
2024 App Click Volume

Use this Wayfair operations review to work on 2024 app click volume. Return each app_id and the total number of click events recorded in 2024. Sort by app_id.

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 20 companies
Easy
15 min
Frequent Support Callers

Wayfair is reviewing frequent support callers through a manager brief. Return the distinct policy_holder_id values for members who made at least 3 calls. Sor...

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 6 companies
Easy
15 min
Signup Confirmation Rate

At Wayfair, analysts are preparing a operations review focused on signup confirmation rate. Calculate the confirmation rate as the percentage of signups that...

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Easy
15 min
Weighted Search Median

Use this Wayfair operations review to work on weighted search median. Return the weighted median number of searches from the compressed search frequency table.

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 6 companies
Medium
25 min
Top Sellers By Gross Sales

Wayfair is reviewing top sellers by gross sales through a readout. Return the top 3 sellers by total_gross_sales. Output seller_id and total_gross_sales sort...

Foundations Track
Pro
query basics
aggregation
Wayfair
Wayfair

Foundations Track

Asked at 6 companies
Medium
25 min
Top Product By Category

Wayfair is reviewing top product by category through a manager brief. Return the highest-grossing product_id in each category during June 2024 along with cat...

Foundations Track
Pro
query basics
aggregation
Wayfair
Wayfair

Foundations Track

Asked at 3 companies
Easy
15 min
Employee Id And Whether The Employee Met Quota Using Values Yes Or No

Use this Wayfair scorecard to work on employee id and whether the employee met quota using values yes or no. Return each employee_id and whether the employee...

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 7 companies
Easy
15 min
Departments Above Average Pay

Wayfair wants a manager brief for departments above average pay. Return each department_id whose average salary exceeds the company average salary for March ...

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 2 companies
Easy
15 min
Device View Mix

Wayfair wants a trend check for device view mix. Count how many views came from laptop devices and how many came from mobile devices. Treat phone and tablet ...

Foundations Track
query basics
Wayfair
Wayfair

Foundations Track

Asked at 4 companies
Medium
25 min
Queue Satisfaction Averages

Wayfair wants a scorecard for queue satisfaction averages. Return queue_name and average satisfaction_score rounded to two decimals. Sort by queue_name.

Foundations Track
Pro
query basics
aggregation
Wayfair
Wayfair

Foundations Track

Asked at 2 companies
Medium
25 min
Average Annual Deal Size Across All Customers

Wayfair wants a operations review for average annual deal size across all customers. Return the average annual deal size across all customers rounded to two ...

Foundations Track
Pro
query basics
aggregation
Wayfair
Wayfair

Analytics Reporting Track

Medium
25 min
Carrier Late Shipment Rate

Operations wants to compare carrier reliability for June 2024 shipments. Return each carrier_name, total_shipments, and the late_shipment_pct rounded to two ...

Analytics Reporting Track
query basics
aggregation
Wayfair
Wayfair

Analytics Reporting Track

Asked at 7 companies
Medium
25 min
May Orders By Region

Wayfair is reviewing may orders by region through a trend check. Return each region and the number of orders placed during May 2024. Sort by region.

Analytics Reporting Track
Pro
query basics
date functions
Wayfair
Wayfair

Interview Core Track

Hard
35 min
Products Purchased Together

Use this Wayfair operations review to work on products purchased together. Return each pair of products that were purchased together in the same order. Outpu...

Interview Core Track
Pro
query basics
joins