Nethues Technologies Software Engineer Interview Questions and Answers

Q1. Explain Testing
Ans. 
Testing is the process of evaluating a software application to ensure it meets specified requirements and functions correctly.
• Testing involves identifying bugs, errors, or defects in the software.

• Types of testing include unit testing, integration testing, system testing, and acceptance testing.

• Testing can be manual or automated, with automated testing using tools like Selenium or JUnit.

• Regression testing ensures that n...read more
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Q1. What is Xpath in testing
Ans. 
Xpath is a language used for locating elements on a web page using XML path expression.
• Xpath stands for XML Path Language.

• It is commonly used in web scraping and automation testing.

• Xpath uses path expressions to navigate through elements and attributes in an XML or HTML document.
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Fizz buzz question and array related

Q1. Basic react, javascript and one question to find duplicate.
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Q1. Salary discussion
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1. Basic string question.
2. solid principal
3. Front end questions

1. Coding question
2. React intermediate questions

Q1. Why you want to join this company
Ans. 
I am impressed by the company's innovative projects and collaborative work culture.
• I admire the company's commitment to cutting-edge technology.

• I am excited about the opportunity to work with a talented team of engineers.

• I believe my skills and experience align well with the company's goals and values.
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Q2. Package discussion
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Duration:30 min
Question from percentage,ratios ,HCF/LCM etc.,
Logical reasoning, English

Q1. Reverse a string by making groups of given 'm' characters
Ans. 
Reverse a string by grouping 'm' characters together
• Iterate through the string in groups of 'm' characters

• Reverse each group of 'm' characters

• Concatenate the reversed groups to get the final reversed string
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Q1. General HR questions
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Q2. What is your family background?
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Q3. Why should we hire you?
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Such like blood relation questions, graph, alphabet and numeric values etc

Related to operators, oop concepts

Q1. Basic questions like introduce my self, expectation salary etc
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Q2. Oop concepts questions, SQL database query etc
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Q3. And any questions about our company
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Q4. 2 Coding questions Java, Python questions and machine learning
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Topics:
Python, Django, MySQL, Automation, Technical questions

Q1. Topics: Python, Django, MySQL, Automation, Technical questions
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Q2. Explain Django Architecture
Ans. 
Django follows Model-View-Controller (MVC) architectural pattern.
• Django has a high-level architecture that follows the Model-View-Controller (MVC) architectural pattern.

• The Model layer represents the database schema and business logic.

• The View layer is responsible for rendering the templates and presenting the data to the user.

• The Controller layer handles the user's input and interacts with the Model and View layers.

• Dj...read more
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Q3. Difference between XML and JSON
Ans. 
XML is a markup language while JSON is a lightweight data interchange format.
• XML uses tags to define elements while JSON uses key-value pairs.

• XML is more verbose and complex than JSON.

• JSON is easier to read and parse than XML.

• XML supports namespaces and validation while JSON does not.

• XML is widely used in web services and document exchange while JSON is preferred for data exchange between applications.
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Round duration - 90 minutes
Round difficulty - Medium

In this round 3 coding question were asked. 
1 - algorithm based ( medium) 
2- array based ( easy) 
3- string based (easy)

Q1. Ways To Make Coin Change
You are given an infinite supply of coins of each of denominations D = {D0, D1, D2, D3, ...... Dn-1}. You need to figure out the total number of ways W, in which you can make a cha...read more
Ans. Recursion
 
1. The idea is to use recursion.
2. For a particular coin, we have two options either include it or exclude it.
3. If we include that coin, then calculate the remaining number that we have to generate so recur for that remaining number.
4. If we exclude that coin, then recur for the same amount that we have to make.
5. Our final answer would be the total number of ways either by including or excluding.
6. There will be two edg...read more
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Q2.  Left Rotations of An Array
You are given an array consisting of 'N' elements and you need to perform 'Q' queries on the given array. Each query consists of an integer which tells the numbe...read more
Ans. Rotate One Element At A Time
The idea is to create a function which would rotate the array one element at a time. This can be done by shifting the array towards left by one element and copying the first element to the end of the array. For every query repeatedly call the above function, until the desired rotation is obtained.
 
If the number of rotations required, say ‘K’, is greater than the number of elements, ‘N’,...read more
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Q3. Chocolate Problem
Given an array/list of integer numbers 'CHOCOLATES' of size 'N', where each value of the array/list represents the number of chocolates in the packet. There are ‘M’ number...read more
Ans. Recursion
The idea is that generate all the possible subsets of size ‘M’ and checks the minimum difference that can be possible from all subsets. 
 
1. This problem can be solved using recursion and the idea behind this is to generate all the possible minimum differences from the given array.
2. To store minimum difference we use a variable (say, ‘minVal’) and the initial value is ‘INFINITE’
3. For each element we will hav...read more
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Round duration - 90 minutes
Round difficulty - Easy

Involved some basic question based on DSA and Java script framework and project discussion

Q1. JavaScript basic question
Basic questions on java script were asked
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Q2. MYSQL query
Questions on mysql and database.
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Q3. Project
Questions on projects in resume.
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Q4. Node js basic question
Questions on basic node js concepts.
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Round duration - 30 minutes
Round difficulty - Easy

It was the CTO round involving some technology based questions

Q1. Oops concepts
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Q1. Asking about the whereabouts
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Q2. Checking com skills and availability
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Q1. Basic questions based on resume
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Q2. Basic .net questions
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Q3. Logical questions related to problem solving
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