Oracle Senior Engineer Interview Questions and Answers

Sort the arr, fetch element from array

Q1. Linklist search
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Q2. Sort in link List
Ans. 
Sorting in a linked list involves rearranging the elements in ascending or descending order based on a certain criteria.
• Use a sorting algorithm like bubble sort, selection sort, or merge sort to rearrange the elements in the linked list.

• Traverse the linked list and compare each element with the next one to determine the order in which they should be sorted.

• Update the pointers of the nodes in the linked list to reflect ...read more
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Traverse through a matrix of uppercase english alphabets to find a given word. you are allowed to make up to k jumps, and same position can be repeated too.

Q1. Compression of 0-1 matrix of particular size.
Ans. 
Compression of 0-1 matrix involves reducing the size of the matrix by storing only the necessary information.
• Use run-length encoding to compress the matrix by storing consecutive repeated values as a single value and count.

• Identify patterns in the matrix that can be represented more efficiently.

• Consider using sparse matrix representation if the matrix has a lot of zeros.

• Implement efficient algorithms to compress and de...read more
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3 dsa questions and various golang concepts and 1 concurrency question

Q1. System design questions
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Q1. Explain about past projects.
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Q2. Technology on which you worked.
Ans. 
I have worked on various technologies including Java, Python, AWS, and Docker.
• Developed RESTful APIs using Java and Spring framework

• Implemented machine learning models using Python and scikit-learn library

• Deployed applications on AWS using EC2, S3, and RDS

• Containerized applications using Docker for easy deployment and scaling
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Q3. C language basic but important concepts related to Data type, pointer, etc.
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Q4. Python knowledge check.
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Q1. Question on trie
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Q2. Question on intervals
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Basic aptitude on java application and framework

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