Elsevier Senior Software Engineer 4 Interview Questions and Answers

Q1. Basic python qyestions
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Q2. Oops concepts in python
Ans. 
Oops concepts in Python include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit attributes and methods from another class.

• Encapsulation restricts access to certain components within a class.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides complex implementation details and only shows the necessary features.
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Q3. Sql queries in framework
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SQL queries are commonly used in frameworks for data manipulation and retrieval.
• SQL queries are used to interact with databases within a framework.

• Frameworks like Hibernate, Entity Framework, and Django ORM use SQL queries to perform database operations.

• SQL queries can be written directly in code or generated by the framework based on object-relational mapping.

• Examples: SELECT * FROM table_name WHERE condition, INSERT ...read more
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Q4. Inheritance and polymorphism
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Q5. Design pattern in python
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Design patterns in Python are reusable solutions to common problems in software design.
• Design patterns help in creating maintainable and scalable code.

• Some common design patterns in Python include Singleton, Factory, Observer, and Strategy.

• Each design pattern has its own purpose and implementation.

• Design patterns promote code reusability and flexibility.
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Graph ques DSA, number pattern question

The written test involved qiestions from bssic aptitude, computer fundamentals and coding.

Q1. This was a technical discussion with the pannel. The discussion was mostly based in what's written in resume. Expect the questions from Java, OOPs, Data structures, SQL.
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Q1. This was a one on one discussion with the manager. It was mostly to identify if the candidate meets basic non technical requirements for the job role.
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Q1. This round was little tricky as i was interviewed by the HR head since all other HRs were busy interviewing other candidates. it was mostly to check the communication skills, flexibility of the employee, t...read more
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Q1. Tell Me what s java
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Java is a high-level programming language known for its portability, security, and versatility.
• Java is an object-oriented language

• It is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• Java is used for developing a wide range of applications, from mobile apps to enterprise software
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Q1. Tell me about yourself
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Q1. About Oracle database and Oracle adfs
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Q1. How nodejs works internally?
Ans. 
Node.js is a runtime environment that executes JavaScript code outside of a web browser.
• Node.js uses the V8 JavaScript engine from Google Chrome to execute code.

• It is built on the event-driven, non-blocking I/O model, making it lightweight and efficient.

• Node.js uses a single-threaded event loop to handle multiple concurrent connections.

• It has a built-in module system that allows developers to easily add functionality t
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Q2. Std input output questions of js
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