Q3 Technologies Junior Software Developer Interview Questions and Answers

Q1. Personal details
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Pattern, star , hollow pattern

Questions based on coding

Based on coding questions

Q1. Introduction of yourself
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I am a recent graduate with a degree in Computer Science and a passion for coding. I have experience with Java, Python, and web development.
• Recent graduate in Computer Science

• Proficient in Java, Python, and web development

• Passionate about coding
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Q2. About dbms , sql queries..
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Q1. Explain oops concept
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OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating reusable code through classes and objects

• Encapsulation: bundling data and methods that operate on the data within a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects to be treated as instances of...read more
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Q1. What is session in php
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Session in PHP is a way to store information (variables) to be used across multiple pages during a user's visit to a website.
• Sessions are used to store user-specific information, such as username, shopping cart items, etc.

• Sessions are started with session_start() function and can be accessed using the $_SESSION superglobal array.

• Sessions are stored on the server and identified by a unique session ID, which is usually s
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Q1. DSA and oops questions
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Q1. Object-oriented questions
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Q1. Project based questions
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Multiple coding questions like fibonacy are asked

Q1. Asked about OS and memory management
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Basic aptitude asked for all company

One question to find substring of string which has double chars

Q1. Basic oops and sql
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Q2. Write pandas for dataframe
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Pandas is a Python library used for data manipulation and analysis, including creating and working with dataframes.
• Import the pandas library: import pandas as pd

• Create a dataframe: df = pd.DataFrame(data)

• Accessing data in a dataframe: df['column_name']

• Filtering data in a dataframe: df[df['column_name'] > value]

• Adding a new column: df['new_column'] = values
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Q1. Give angle betweeen hour hand and min hand art 12:20
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The angle between the hour hand and minute hand at 12:20 is 10 degrees.
• Calculate the angle made by the hour hand from 12 o'clock position: (20/60)*30 = 10 degrees

• Calculate the angle made by the minute hand from 12 o'clock position: (20/60)*360 = 120 degrees

• Find the difference between the two angles: 120 - 10 = 110 degrees
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Q2. Basic operating system questions
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