Railworld India Interview Questions and Answers

Chooses based on the programming language we choose

Q1. Patterns question
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Q2. Tests just if we know the name of the topics
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Q1. Explains entire company rules ofcourse all the things are fraud though they explain shamelessly
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Q1. What is prop drilling
Ans. 
Prop drilling is the process of passing data from a parent component to multiple levels of nested child components in React.
• Prop drilling involves passing props through multiple levels of components, even if some intermediate components do not need the data.

• It can lead to code that is harder to maintain and understand, as components become tightly coupled to the data they receive.

• One way to avoid prop drilling is by us...read more
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Q2. What is matplotlib
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Matplotlib is a plotting library for creating static, animated, and interactive visualizations in Python.
• Used for creating various types of plots such as line, bar, scatter, histogram, etc.

• Provides a MATLAB-like interface for easy plotting.

• Supports customization of plots with labels, titles, legends, colors, etc.
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Q1. What is your strength
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Q2. Why you want to join us
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The round1 is assignment on our domain, they will give you 10 questions 10mins time where 5 questions from the domain we choose and another 5 from Blockchain technology

Q1. What is difference b/w sql and mysql
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Q2. What is dbms and rdbms? difference b/w them
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Q1. When u willl Join?
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Q2. Salary expectation
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Java, blockchain technology

Q1. Questions from spring boot
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Finding index of an element in an array using binary search

Black chain and technical questions

Q1. What is css opacity?
Ans. 
CSS opacity is a property that controls the transparency of an element.
• Opacity values range from 0 (completely transparent) to 1 (completely opaque)

• Can be applied to any HTML element using CSS

• Useful for creating overlay effects or fading animations
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Q1. Tell me about yourself?
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Q1. Jvm and Jre difference
Ans. 
JVM is the virtual machine that runs Java bytecode, while JRE is the environment in which Java programs run.
• JVM stands for Java Virtual Machine and is responsible for executing Java bytecode.

• JRE stands for Java Runtime Environment and includes JVM, libraries, and other components necessary for running Java programs.

• JVM is platform-dependent, while JRE is platform-independent.

• Example: When you run a Java program, the JR...read more
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Q2. What is java and why we use
Ans. 
Java is a high-level programming language used for developing applications that can run on any platform.
• Java is platform-independent, meaning code can run on any device with a Java Virtual Machine (JVM)

• It is object-oriented, allowing for modular and reusable code

• Java is used for developing web applications, mobile apps, enterprise software, and more
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