Oracle Interview Questions, Process, and Tips for Experienced

Q1. Zig zag binary tree
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Q2. Design instagram
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2 Questions
1. create and sort linked list
2. Binary search leetcode medium

Q1. Indepth skill set knowledge round
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Q1. Cloud native approach round
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Q1. One to one managerial round
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Q1. Salary , benefit discussion
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Delete nodes from linkedList if their value matches a certain condition

Q1. Js advanced concepts
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Q2. Java concurrency
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Q3. Design patterns
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Q1. Implement few design patterns
Ans. 
Implementing design patterns in software development
• Singleton pattern ensures a class has only one instance and provides a global point of access to it

• Factory pattern creates objects without specifying the exact class of object that will be created

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated
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Q2. Questions of microservice architecture
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Q3. Java 8 tricky coding questions
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Q1. Linked List and Stack
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Q1. 2 question related to Tree and Graph
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Q1. Design Toll system
Ans. 
Design a toll system for collecting fees from vehicles using RFID technology.
• Implement RFID technology for automatic vehicle identification

• Set up toll booths with RFID readers to detect vehicles

• Calculate toll fees based on vehicle type, distance traveled, and time of day

• Provide payment options such as prepaid accounts or credit card payments
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