HGS Associate Software Engineer Interview Questions and Answers

Q1. Tell me about yourself
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Q2. Tell me about your self
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Q3. Previous Experience .net
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Q4. Programming language u use
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I primarily use Java for backend development and JavaScript for frontend development.
• Java for backend development

• JavaScript for frontend development
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Q5. Projects u work kn
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Q1. Aptitude question
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Q2. Explanation about my project
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I developed a web application for tracking personal fitness goals and progress.
• Used HTML, CSS, and JavaScript for front-end development

• Utilized Node.js and Express for back-end development

• Implemented user authentication and data storage using MongoDB

• Incorporated data visualization tools like Chart.js for displaying progress graphs
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Q1. What is k in KNN algorithm ?
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k in KNN algorithm represents the number of nearest neighbors to consider when making a prediction.
• k is a hyperparameter that is chosen by the user and determines how many neighbors to look at when classifying a new data point.

• A smaller value of k can lead to overfitting, while a larger value can lead to underfitting.

• For example, if k=3 in a KNN algorithm, the prediction for a new data point will be based on the majori
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Q2. A small riddle
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Q1. What is Rabbit MQ?
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RabbitMQ is a message broker software that implements the Advanced Message Queuing Protocol (AMQP).
• RabbitMQ allows different software systems to communicate by sending and receiving messages.

• It can be used to decouple different parts of a system, making it more scalable and resilient.

• RabbitMQ supports multiple messaging protocols, including AMQP, MQTT, and STOMP.
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Q2. What is LINQ in .net?
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LINQ (Language Integrated Query) is a feature in .NET that allows querying data from different data sources using a uniform syntax.
• LINQ allows querying data from collections, databases, XML, and more.

• It provides a set of standard query operators like Where, Select, OrderBy, etc.

• LINQ queries are written in C# or VB.NET and are type-safe.

• Example: var result = from num in numbers where num % 2 == 0 select num;
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Q1. Dependency injections
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Q2. Solid principles,linq
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Q1. Hash map implementation
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Hash map is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• Hash map uses a hash function to map keys to indices in an array.

• Collision handling is important in hash map implementation.

• Common operations include adding, removing, and retrieving key-value pairs.

• Example: HashMap map = new HashMap<>();
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Q2. About software development models
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Easy coding questions

Q1. Hashmap question
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First time attend aptitude test .

Q1. Any computer engineering basic questions
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Q2. C,C++,java , python
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Q3. What is inheritance.how many times of inheritance.
Ans. 
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Inheritance allows for code reusability and promotes the concept of 'is-a' relationship.

• There are different types of inheritance such as single inheritance, multiple inheritance, multilevel inheritance, and hierarchical inheritance.

• Example: Class B inheriting from Class A - 'class B: public A {}'
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Q4. How many characters are used in C.
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C uses a set of 128 characters, including letters, digits, special characters, and control characters.
• C uses 26 letters (uppercase and lowercase), 10 digits (0-9), and various special characters like !, @, #, $, %, etc.

• C also includes control characters like newline, tab, carriage return, etc.

• The total number of characters used in C is 128.
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Q5. What is c. How many characters are used.
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C is a programming language known for its efficiency and flexibility. It uses 256 characters.
• C is a high-level programming language used for system programming, embedded systems, and applications.

• C uses 256 characters, including letters, digits, special characters, and whitespace.

• Examples of characters in C include 'a', '1', '+', and ' '.
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In Round 1 there was 2 hours Coding Test on HACKEREARTH in the college campus as it was physical drive.
The test consist of 2 medium level coding questions of 20 marks each and 20 mcqs.
The mcq was based on oops concepts, have multiple programming languages questions including C++, Java, Python, C# and 4 questions of aptitude.

Q1. After clearing Round 1, I was called for a F2F technical interview On-site. While taking my intro the interviewer was seeing my projects on his system on the other side. I explained my projects. Actually t...read more
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Q2. In DSA domain he asked me to write code for finding a node in binary tree including the case of duplicates and a palindrome string program. He asked difference between encapsulation and abstraction in deta...read more
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Q1. Unfortunately I was not selected in the HR round despite having a great technical interview, answered all the questions correctly, I had awesome projects. The worst part is they didn't gave the review for ...read more
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