Okta Tester Interview Questions and Answers

Q1. How to check a number is power of 2
Ans. 
To check if a number is a power of 2, we can use bitwise operations.
• A power of 2 has only one bit set to 1, so we can use the bitwise AND operator to check if the number is a power of 2.

• If n is a power of 2, then n & (n-1) will be 0.

• For example, 8 (1000 in binary) is a power of 2, and 8 & 7 (0111 in binary) is 0.
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Q2. Sort a stack without using another data structure
Ans. 
Sort a stack without using another data structure
• Use recursion to pop the top element and insert it at the bottom of the remaining stack

• Repeat until the stack is sorted in ascending order

• Time complexity: O(n^2), space complexity: O(n) due to recursion
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Q3. Check weather array have continuous increasing than decreasing value
Ans. 
Check if array has continuous increasing and decreasing values
• Loop through the array and check if each element is greater than the previous one

• Once you find the maximum element, check if the remaining elements are in decreasing order

• If yes, return true else false
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Q1. Design a cricinfo (LLD)
Ans. 
Design a cricinfo (LLD)
• Identify the entities: players, teams, matches, scorecards, tournaments, etc.

• Define the relationships between entities

• Create a database schema to store the data

• Implement APIs to fetch and update data

• Design a UI to display the information

• Consider scalability and performance

• Ensure data security and privacy
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Q1. Share details of your previous job.
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Q2. Why should we hire you?
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Q3. What are your strengths and weaknesses?
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Q1. L2/L3 layer questions
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Q1. Questions related to python coding .
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Q2. Questions related to work u have done . And coding
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Q1. Questions about networking , security profile
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Q1. About networking protocols and coding rounds
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Q1. Questions are regarding Springboot
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Codility coding rounds , where code execution is mandatory and system design qiestions

Q1. Again execute code and technical questions
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Q1. One more coding test and tech questions
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Q1. Design patterns
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Q2. Design Patterns , scenario based
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Q1. Python oops concept
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Q2. Framework related logical questions
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Q3. Puzzle on different baloons of color need to separate
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Q1. Leetcode questions on strings, arrays and hashmap
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Q1. Resume based questions + domain knowledge
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Q1. System design interview + resume based questions
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Had questions on testing

Q1. Question on c++ language
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Q1. Basic testing knowledge
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Q2. Networking related questions
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Q1. Networking and security questions
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Q2. Basic python coding
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