Oracle Senior Principal Engineer Interview Questions and Answers

Q1. Coding ,1 medium question were asked
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Q2. C# concepts basic ques
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Q1. Design pattern ques
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Q1. Design a high performing network queue
Ans. 
Design a high performing network queue
• Use a priority queue to ensure efficient ordering of tasks

• Implement efficient data structures like linked lists or arrays for storing the queue elements

• Optimize for fast insertion and removal operations

• Consider using multithreading or parallel processing for handling multiple requests simultaneously
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Q2. Explain your contribution to projects
Ans. 
I have led cross-functional teams to deliver high-quality software solutions on time and within budget.
• Led cross-functional teams to deliver software projects

• Ensured projects were completed on time and within budget

• Implemented best practices for software development

• Collaborated with stakeholders to gather requirements and provide updates

• Mentored junior team members to improve their skills
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Q1. Synchronisation primitives in rust?
Ans. 
Rust provides various synchronisation primitives like Mutex, RwLock, Atomic types, etc.
• Mutex: Provides exclusive access to data

• RwLock: Allows multiple readers or one writer at a time

• Atomic types: Provide atomic operations on primitive types
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Q2. Write a rust code to read a file reverse the contents & write it back to file. Using multiple threads
Ans. 
Rust code to read a file, reverse contents, and write back using multiple threads
• Use std::fs to read and write files

• Create multiple threads to handle reading, reversing, and writing operations

• Use channels to communicate between threads
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DSA question on Depth first search. & other on reverse the strings.

Q1. Dp hard sliding window mqximum
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Q2. Jah hshh hahaha nsnana
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Q1. Leetcode hard easy question
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Q1. Java related questions when the interview was not language specific
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Q1. Mostly on c#, hld and lld
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Q1. Question were regarding the AWS
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