FIS Senior System Specialist Interview Questions and Answers

Was of 1 hour, got asked about 3 sum as well as a medium level problem

Q1. Releated to IOS
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Q2. About multithreading, deep dive
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2 questions of Ds algo was asked

Q1. Build a TODO task tracking application
Ans. 
TODO task tracking application to manage tasks and deadlines
• Create a user-friendly interface for adding, editing, and deleting tasks

• Implement a feature to set deadlines and reminders for tasks

• Include categories or tags to organize tasks efficiently

• Allow users to mark tasks as completed and track progress

• Provide a search functionality to easily find specific tasks
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Q1. Data structure and algorithms
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Take Home assingment, 4hours. build a application

Q1. System Design , Design Twitter like System
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Design splitwise - Low level machine coding round

Q1. DSA problems; 1 medium, 1 hard
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Q1. DS questions around array and DP
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Q2. Array manipulation, dynamic programming
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Q3. Segregation of number in an array
Ans. 
Segregate numbers in an array of strings based on odd/even
• Iterate through the array and separate odd and even numbers into two separate arrays

• Use parseInt() to convert strings to numbers for comparison

• Return the two arrays of odd and even numbers
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Q4. React life cycle
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Q5. Promise and async await
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Easy to medium | LC problem on array strings

Q1. Easy to medium | Java concept
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Q1. Design round | Design a notification service
Ans. 
Design a notification service for sending real-time alerts to users.
• Use a scalable messaging system like Kafka or RabbitMQ to handle high volume of notifications.

• Implement a user preference system to allow users to choose their preferred notification channels (email, SMS, push notifications, etc).

• Include a scheduling feature to send notifications at specific times or intervals.

• Ensure notifications are personalized and ...read more
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Q1. HR for salary negotiation
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