Technical interview questions and drills

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Showing the Full-Stack Product Features curriculum. Technology tags describe each drill's actual implementation context; shared drills can belong to more than one track.

Concept questionMedium~7 min

Build a filtered and paginated list page

Explains URL-backed filters, API query parameters, pagination, sorting, empty states, and shareable list views.

In Full-Stack Product FeaturesShared across 2 tracks

.NETASP.NET CoreNext.jsReactSQL Server+1

Drills

Build a filtered and paginated list page

Build an admin CRUD workflow with permissions

Build auth-aware UI with server authorization

Choose optimistic UI or server-confirmed updates

Debug a user-facing full-stack error

Define the request and response contract for a feature

Design form validation across UI and API

Design loading, empty, and error states for data pages

Design master-detail data fetching

Frontend caching, stale data, and refetching

Handle stale form data and concurrency conflicts

Implement a file upload flow from UI to API

Implement debounced search and request cancellation

Map API validation errors to the form UI

Prevent double submits and duplicate mutations

Release a full-stack feature behind a feature flag

Trace full-stack user actions in production

Use a Next.js backend-for-frontend with an ASP.NET API

Write an end-to-end test for a critical flow