FactSet Software Developer Interview Questions and Answers

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Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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Q1. Explain more about yourself
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Q2. Could you walk me through your last project?
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Q1. How to implement security in microservices
Ans. 
Implement security in microservices by using authentication, authorization, encryption, and monitoring.
• Use authentication mechanisms like OAuth, JWT, or API keys to verify the identity of clients accessing the microservices.

• Implement authorization controls to define what actions users can perform within the microservices.

• Encrypt data in transit and at rest using protocols like HTTPS and TLS, and tools like Vault or AWS...read more
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