Top 50 error handling Interview Questions
The most frequently asked error handling questions across all roles and companies, ranked by real interview frequency. Updated daily.
Count error codes from an Affirm log stream and return the top 10 using a hash map and bounded heap.
Affirm
DatadogUse a sliding window to detect when error results exceed a limit within a time interval.
NVIDIASimulate exception handling, compute Python-style C3 MROs, and validate CAP property combinations.
Safely traverse nested dict/list JSON data using path parsing and return a default value for invalid keys or indices.
Micro1Use per-user state machines to find errors after users trigger a, b, and c in order.
Implement a decorator that retries failed function calls up to three times while preserving arguments and the final exception.
AlbertsonsUse sorting and sliding windows to detect Verkada badges with repeated denied access attempts while ignoring malformed events.
VerkadaSimulate asynchronous message handling with bounded retries, transient failures, and a dead-letter queue.
Count 0 and 1 sensor readings by Bosch building using a CTE, LEFT JOIN, and conditional aggregation.
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Use a CTE, CROSS JOIN, and LEFT JOIN to calculate monthly Netflix store sales, including stores and months with no sales.
NetflixRank active HSBC employees by division and return every employee tied for the highest or second-highest salary.
Hsbc