Pearson Education India Software Quality Engineer Interview Questions and Answers

Q1. Coding question: Given a sorted array of numbers. All numbers have freq of 2 in array except one number. Find that number with T.C of logn
Ans. 
Find the single number in a sorted array with frequency of 2 for all other numbers.
• Use binary search to find the number with different frequency.

• Check if the mid element is at even or odd index to determine which side to search next.

• Example: Input array [1, 1, 2, 2, 3, 3, 4, 4, 5] should return 5.
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Q2. Print left view of tree
Ans. 
Print the left view of a tree by traversing the tree from left to right at each level
• Traverse the tree using level order traversal

• Print the first node at each level encountered during traversal
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Q1. Detailed discussion on projects
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Q2. Questions on O.S like about deadlocks,etc..
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Medium leetcode question on graph was given by third party interviewer BarRaiser

It was an aptitude test on the portal

Q1. 2 Dsa a question, second largest element in the array, prime number and other questions are based on my resume
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Q1. Java oops concepts
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Q1. Self intro for yourself
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Q1. Basic questions for ADF
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Q1. Basic HR round for CTC and notice period
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Q1. C++ this pointer
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Q2. Python gil library questions asked
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Q1. Design a distributed system with 10mil users
Ans. 
Design a distributed system to handle 10 million users.
• Use a microservices architecture to break down the system into smaller, manageable components.

• Implement load balancing to distribute user requests across multiple servers.

• Utilize a distributed database to store user data and ensure scalability.

• Implement caching mechanisms to improve performance and reduce database load.

• Use message queues for asynchronous communicat...read more
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Asked about data structure and algo