Oracle Lead Engineer Interview Questions and Answers

Online coding test with questions varies from basic python, SQL to Data Engg. fundamentals

Q1. Spark, python, SQL and Data Engg. questions
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Q1. Salary Negotiation and expectations
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Q1. Domain knowledge and projects
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Q1. Domain knowledge and projects
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Q1. How does a cell communicates between 2 sites.
Ans. 
Cells communicate between 2 sites through various signaling pathways, including direct cell-to-cell contact and chemical signaling.
• Cells can communicate through direct cell-to-cell contact, such as gap junctions or cell adhesion molecules.

• Cells can also communicate through chemical signaling, such as paracrine signaling (local signaling) or endocrine signaling (long-distance signaling).

• Examples include neurotransmitter...read more
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Q2. L3 layer details
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Q1. DSA problem to find the count of characters in a string
Ans. 
Use a hashmap to count the occurrences of each character in the string.
• Create a hashmap to store character counts

• Iterate through the string and update counts in the hashmap

• Return the hashmap with character counts
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Q2. VOiP related questions
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Q1. Have you worked on swift
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Q2. What is a class
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A class is a blueprint for creating objects in object-oriented programming.
• Classes define the properties and behaviors of objects.

• Objects are instances of classes.

• Classes can inherit properties and behaviors from other classes.

• Encapsulation, inheritance, and polymorphism are key concepts in class-based programming.
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Q1. Write code for star paattern
Ans. 
Code for star pattern using nested loops
• Use nested loops to print the desired pattern

• Outer loop controls the number of rows and inner loop controls the number of stars in each row

• Example: for a pattern with 5 rows, the code would involve two nested loops to print stars in a pyramid shape
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Q2. What is linked list
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A linked list is a data structure where each element is a separate object, connected to the next element by a pointer.
• Consists of nodes where each node contains data and a reference to the next node

• Dynamic in size and can grow or shrink during execution

• Common operations include insertion, deletion, and traversal

• Example: Singly linked list, Doubly linked list, Circular linked list
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Q3. Differnce between public private
Ans. 
Public and private sectors differ in ownership, funding, and management.
• Public sector is owned and operated by the government, while private sector is owned and operated by individuals or companies.

• Public sector is funded by taxpayer money, while private sector is funded by investors or owners.

• Public sector is managed by government officials, while private sector is managed by business owners or executives.
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Q4. Whats is oops and protcols
Ans. 
OOPs stands for Object-Oriented Programming and protocols are a set of rules for communication between devices.
• OOPs is a programming paradigm that uses objects and classes to design applications.

• Protocols are a set of rules that define how data is transmitted between devices.

• In OOPs, objects have attributes and methods that define their behavior.

• Examples of OOPs languages include Java, C++, and Python.

• Examples of proto
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Q1. Total time waste quesrtions
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Q2. Basic programing questions as em was having very less knowledge
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16 aptitude questions to be solved in 30 minutes

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Q1. SQL Questions on joining tables
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Q2. SQL Questions on optimizing codes
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How to approach a data base schema creation and optimization for BMS

Q1. What are your strenghts
Ans. 
My strengths include strong analytical skills, excellent communication abilities, and a proven track record of delivering successful business solutions.
• Strong analytical skills - able to analyze complex data and identify key insights

• Excellent communication abilities - able to effectively communicate with stakeholders at all levels

• Proven track record of delivering successful business solutions - have led multiple projec
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Q2. Questions on leadership skills and conflict resolution
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Online coding test with questions varies from basic python, SQL to Data Engg. fundamentals

Q1. Spark, python, SQL and Data Engg. questions
Add your answer

Q1. Salary Negotiation and expectations
Add your answer