Kapture CX Interview Questions and Answers for Experienced

Q1. Given a string with parenthesis, return if the parenthesis are balanced or not.
Ans. 
Check if a string with parenthesis is balanced
• Use a stack to keep track of opening parenthesis

• Iterate through the string and push opening parenthesis onto the stack

• When a closing parenthesis is encountered, pop from the stack and check if it matches the closing parenthesis

• If stack is empty at the end and all parenthesis are matched, return true
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Q1. Design an login/register authentication system.
Ans. 
Design a secure login/register authentication system.
• Use strong encryption algorithms like bcrypt for storing passwords.

• Implement multi-factor authentication for added security.

• Utilize HTTPS protocol to ensure data transmission is secure.

• Implement rate limiting to prevent brute force attacks.

• Use CAPTCHA to prevent automated account creation.

• Store user credentials in a secure database with proper access controls.
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Q1. Culture fit questions
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Merge two sorted lists

Q1. System Design netflix or Youtube
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It was 3 hour test. Given sessions of users with timestamp and generate the group of session which falls in 10 minutes window.

Q1. There were 4 rounds. 2 System Design and 1 coding round followed by hiring manager round with behavioral questions
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Q2. Design weather Widget where you are calling an API to get hourly data
Ans. 
Design a weather widget that calls an API to get hourly data.
• Use a front-end framework like React or Angular to create the widget.

• Make API calls to a weather service like OpenWeatherMap or WeatherAPI.

• Display hourly weather data such as temperature, humidity, and precipitation.

• Include icons or graphics to represent different weather conditions.

• Allow users to input their location or automatically detect it using geolocat...read more
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Q3. Design Netflix streaming system
Ans. 
Design a scalable and efficient streaming system for Netflix.
• Use a content delivery network (CDN) to cache and deliver content closer to users.

• Implement a recommendation system to personalize content for users.

• Utilize a microservices architecture to handle different components like user authentication, video encoding, and streaming.

• Use load balancing and auto-scaling to handle varying traffic demands.

• Implement a fault-...read more
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Q4. Longest substring without repeating characters
Ans. 
Find the longest substring without repeating characters in a given string.
• Use a sliding window approach to track the longest substring without repeating characters.

• Keep track of the characters seen so far in a set to check for duplicates.

• Update the start index of the window when a duplicate character is found.

• Return the length of the longest substring.
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Q5. Tell me about a time when you had a conflict
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Q1. The usual talk about your experience and what to expect
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Take home timed coding assignment using GET and POST

Q1. 3 hour virtual onsite: easy/medium level LC, Vanilla JS, system design
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