Top 50 validation Interview Questions
The most frequently asked validation questions across all roles and companies, ranked by real interview frequency. Updated daily.
Recursively validate Commure clinical event payloads against nested object, array, primitive, and required-field rules.
Commure
Airbus
American Express Global Business TravelValidate nested parentheses in Parsons configuration text using a stack and a single linear scan.
Parsons
Impact AnalyticsUse a stack to validate whether a string contains correctly ordered and nested brackets.
GoogleUse a stack to determine whether parentheses and other brackets are correctly matched and nested in a Nokia NetAct configuration string.
NokiaParse and validate Twitch channel links, returning a canonical lowercase channel name.
TwitchDetermine whether a parentheses string is balanced using a stack and linear-time scanning.
ZyngaDetermine whether a string is a valid finite decimal or scientific-notation number using pattern matching.
FDM GroupImplement course creation and duplicate-safe student registration while enforcing a 24-credit limit.
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