Softway Software Engineer Level 1 Interview Questions and Answers

Q1. What is react why it's used?
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Q1. What is virtual DOM in react?
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Filter and shot the filter block based on title using redux?

Q1. What are the solid principal
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Aptitude questions with some basic coding questions

They have given 3 coding questions and some pseudo codings

Q1. Tell about your self
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Q2. Some coding questions
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Q1. Basic css,js,reactjs questions
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Q2. Reactjs coding questions related to array, mapping
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Q3. Difference between ecma6 and ecma5
Ans. 
ECMA6 introduced new features like arrow functions, classes, and let/const declarations compared to ECMA5.
• ECMA6 introduced arrow functions for more concise syntax: const add = (a, b) => a + b;

• ECMA6 added classes for object-oriented programming: class Person { constructor(name) { this.name = name; } }

• ECMA6 introduced let/const declarations for block-scoped variables: let x = 5; const y = 10;
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Q4. Form in reactjs
Ans. 
Form handling in ReactJS involves creating controlled components to manage form data and handle user input.
• Use state to manage form data and update it with user input

• Handle form submission with onSubmit event handler

• Use controlled components to ensure form data is synced with state
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Q5. Box-modal, arrow function, DOM
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Logical reasoning and Aptitude

Functions with Pointers and strings concepts

Q1. Mainly on Pointers and Dynamic Memory Allocation of 2-D Array
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Q2. Structure Padding and Packing
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It is easy to solve the Aptitude question and some identifying outputs of program.

Q1. What is class?and write a logic for object in a class.
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• A class defines the properties and behaviors of objects.

• An object is an instance of a class.

• Example: Class 'Car' can have properties like 'color' and 'model', and behaviors like 'drive' and 'stop'.
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Q2. 1.swap two numbers without using temp variable 2.Reverse the string.
Ans. 
Swap two numbers without using temp variable and reverse a string without using built-in functions.
• To swap two numbers without using temp variable, use bitwise XOR operation.

• To reverse a string without using built-in functions, use two pointers approach.

• Example for swapping numbers: a = a ^ b; b = a ^ b; a = a ^ b;

• Example for reversing a string: use two pointers to swap characters from start and end of the string.
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Now, I am preparing for the third round.
So, I don't know the Coding Question.

Easy aptitude, 30 min with 20 question

Q1. Explain process for SDE
Ans. 
The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.
• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements
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