Most Asked Interview Questions with Answers ๐ปโ
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Git Commands
๐ git init โ Initialize a new Git repository
๐ฅ git clone <repo> โ Clone a repository
๐ git status โ Check the status of your repository
โ git add <file> โ Add a file to the staging area
๐ git commit -m "message" โ Commit changes with a message
๐ git push โ Push changes to a remote repository
โฌ๏ธ git pull โ Fetch and merge changes from a remote repository
Branching
๐ git branch โ List all branches
๐ฑ git branch <name> โ Create a new branch
๐ git checkout <branch> โ Switch to a branch
๐ git merge <branch> โ Merge a branch into the current branch
โก๏ธ git rebase <branch> โ Apply commits on top of another branch
Undo & Fix Mistakes
โช git reset --soft HEAD~1 โ Undo the last commit but keep changes
โ git reset --hard HEAD~1 โ Undo the last commit and discard changes
๐ git revert <commit> โ Create a new commit that undoes a specific commit
Logs & History
๐ git log โ Show commit history
๐ git log --oneline --graph --all โ View commit history in a simple graph
Stashing
๐ฅ git stash โ Save changes without committing
๐ญ git stash pop โ Apply stashed changes and remove them from stash
Remote & Collaboration
๐ git remote -v โ View remote repositories
๐ก git fetch โ Fetch changes without merging
๐ต๏ธ git diff โ Compare changes
Donโt forget to react โค๏ธ if youโd like to see more content like this!
๐ git init โ Initialize a new Git repository
๐ฅ git clone <repo> โ Clone a repository
๐ git status โ Check the status of your repository
โ git add <file> โ Add a file to the staging area
๐ git commit -m "message" โ Commit changes with a message
๐ git push โ Push changes to a remote repository
โฌ๏ธ git pull โ Fetch and merge changes from a remote repository
Branching
๐ git branch โ List all branches
๐ฑ git branch <name> โ Create a new branch
๐ git checkout <branch> โ Switch to a branch
๐ git merge <branch> โ Merge a branch into the current branch
โก๏ธ git rebase <branch> โ Apply commits on top of another branch
Undo & Fix Mistakes
โช git reset --soft HEAD~1 โ Undo the last commit but keep changes
โ git reset --hard HEAD~1 โ Undo the last commit and discard changes
๐ git revert <commit> โ Create a new commit that undoes a specific commit
Logs & History
๐ git log โ Show commit history
๐ git log --oneline --graph --all โ View commit history in a simple graph
Stashing
๐ฅ git stash โ Save changes without committing
๐ญ git stash pop โ Apply stashed changes and remove them from stash
Remote & Collaboration
๐ git remote -v โ View remote repositories
๐ก git fetch โ Fetch changes without merging
๐ต๏ธ git diff โ Compare changes
Donโt forget to react โค๏ธ if youโd like to see more content like this!
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๐ Roadmap to Become a Software Architect ๐จโ๐ป
๐ Programming & Development Fundamentals
โโ๐ Master One or More Programming Languages (Java, C#, Python, etc.)
โโโ๐ Learn Data Structures & Algorithms
โโโโ๐ Understand Design Patterns & Best Practices
๐ Software Design & Architecture Principles
โโ๐ Learn SOLID Principles & Clean Code Practices
โโโ๐ Master Object-Oriented & Functional Design
โโโโ๐ Understand Domain-Driven Design (DDD)
๐ System Design & Scalability
โโ๐ Learn Microservices & Monolithic Architectures
โโโ๐ Understand Load Balancing, Caching & CDNs
โโโโ๐ Dive into CAP Theorem & Event-Driven Architecture
๐ Databases & Storage Solutions
โโ๐ Master SQL & NoSQL Databases
โโโ๐ Learn Database Scaling & Sharding Strategies
โโโโ๐ Understand Data Warehousing & ETL Processes
๐ Cloud Computing & DevOps
โโ๐ Learn Cloud Platforms (AWS, Azure, GCP)
โโโ๐ Understand CI/CD & Infrastructure as Code (IaC)
โโโโ๐ Work with Containers & Kubernetes
๐ Security & Performance Optimization
โโ๐ Master Secure Coding Practices
โโโ๐ Learn Authentication & Authorization (OAuth, JWT)
โโโโ๐ Optimize System Performance & Reliability
๐ Project Management & Communication
โโ๐ Work with Agile & Scrum Methodologies
โโโ๐ Collaborate with Cross-Functional Teams
โโโโ๐ Improve Technical Documentation & Decision-Making
๐ Real-World Experience & Leadership
โโ๐ Design & Build Scalable Software Systems
โโโ๐ Contribute to Open-Source & Architectural Discussions
โโโโ๐ Mentor Developers & Lead Engineering Teams
๐ Interview Preparation & Career Growth
โโ๐ Solve System Design Challenges
โโโ๐ Master Architectural Case Studies
โโโโ๐ Network & Apply for Software Architect Roles
โ Get Hired as a Software Architect
React "โค๏ธ" for More ๐จโ๐ป
๐ Programming & Development Fundamentals
โโ๐ Master One or More Programming Languages (Java, C#, Python, etc.)
โโโ๐ Learn Data Structures & Algorithms
โโโโ๐ Understand Design Patterns & Best Practices
๐ Software Design & Architecture Principles
โโ๐ Learn SOLID Principles & Clean Code Practices
โโโ๐ Master Object-Oriented & Functional Design
โโโโ๐ Understand Domain-Driven Design (DDD)
๐ System Design & Scalability
โโ๐ Learn Microservices & Monolithic Architectures
โโโ๐ Understand Load Balancing, Caching & CDNs
โโโโ๐ Dive into CAP Theorem & Event-Driven Architecture
๐ Databases & Storage Solutions
โโ๐ Master SQL & NoSQL Databases
โโโ๐ Learn Database Scaling & Sharding Strategies
โโโโ๐ Understand Data Warehousing & ETL Processes
๐ Cloud Computing & DevOps
โโ๐ Learn Cloud Platforms (AWS, Azure, GCP)
โโโ๐ Understand CI/CD & Infrastructure as Code (IaC)
โโโโ๐ Work with Containers & Kubernetes
๐ Security & Performance Optimization
โโ๐ Master Secure Coding Practices
โโโ๐ Learn Authentication & Authorization (OAuth, JWT)
โโโโ๐ Optimize System Performance & Reliability
๐ Project Management & Communication
โโ๐ Work with Agile & Scrum Methodologies
โโโ๐ Collaborate with Cross-Functional Teams
โโโโ๐ Improve Technical Documentation & Decision-Making
๐ Real-World Experience & Leadership
โโ๐ Design & Build Scalable Software Systems
โโโ๐ Contribute to Open-Source & Architectural Discussions
โโโโ๐ Mentor Developers & Lead Engineering Teams
๐ Interview Preparation & Career Growth
โโ๐ Solve System Design Challenges
โโโ๐ Master Architectural Case Studies
โโโโ๐ Network & Apply for Software Architect Roles
โ Get Hired as a Software Architect
React "โค๏ธ" for More ๐จโ๐ป
๐4โค1๐ซก1
๐๐ผ๐ ๐๐ผ ๐๐ฒ๐ฎ๐ฟ๐ป ๐ฃ๐๐๐ต๐ผ๐ป ๐๐ฎ๐๐ (๐๐๐ฒ๐ป ๐๐ณ ๐ฌ๐ผ๐'๐๐ฒ ๐ก๐ฒ๐๐ฒ๐ฟ ๐๐ผ๐ฑ๐ฒ๐ฑ ๐๐ฒ๐ณ๐ผ๐ฟ๐ฒ!)๐๐
Python is everywhereโweb dev, data science, automation, AIโฆ
But where should YOU start if you're a beginner?
Donโt worry. Hereโs a 6-step roadmap to master Python the smart way (no fluff, just action)๐
๐น ๐ฆ๐๐ฒ๐ฝ ๐ญ: Learn the Basics (Donโt Skip This!)
โ Variables, data types (int, float, string, bool)
โ Loops (for, while), conditionals (if/else)
โ Functions and user input
Start with:
Python.org Docs
YouTube: Programming with Mosh / CodeWithHarry
Platforms: W3Schools / SoloLearn / FreeCodeCamp
Spend a week here.
Practice > Theory.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฎ: Automate Boring Stuff (Itโs Fun + Useful!)
โ Rename files in bulk
โ Auto-fill forms
โ Web scraping with BeautifulSoup or Selenium
Read: โAutomate the Boring Stuff with Pythonโ
Itโs beginner-friendly and practical!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฏ: Build Mini Projects (Your Confidence Booster)
โ Calculator app
โ Dice roll simulator
โ Password generator
โ Number guessing game
These small projects teach logic, problem-solving, and syntax in action.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฐ: Dive Into Libraries (Pythonโs Superpower)
โ Pandas and NumPy โ for data
โ Matplotlib โ for visualizations
โ Requests โ for APIs
โ Tkinter โ for GUI apps
โ Flask โ for web apps
Libraries are what make Python powerful. Learn one at a time with a mini project.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฑ: Use Git + GitHub (Be a Real Dev)
โ Track your code with Git
โ Upload projects to GitHub
โ Write clear README files
โ Contribute to open source repos
Your GitHub profile = Your online CV. Keep it active!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฒ: Build a Capstone Project (Level-Up!)
โ A weather dashboard (API + Flask)
โ A personal expense tracker
โ A web scraper that sends email alerts
โ A basic portfolio website in Python + Flask
Pick something that solves a real problemโbonus if it helps you in daily life!
๐ฏ ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐๐๐ต๐ผ๐ป = ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐ผ๐๐ฒ๐ฟ๐ณ๐๐น ๐ฃ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ ๐ฆ๐ผ๐น๐๐ถ๐ป๐ด
You donโt need to memorize code. Understand the logic.
Google is your best friend. Practice is your real teacher.
Python Resources: https://whatsapp.com/channel/0029Vau5fZECsU9HJFLacm2a
ENJOY LEARNING ๐๐
Python is everywhereโweb dev, data science, automation, AIโฆ
But where should YOU start if you're a beginner?
Donโt worry. Hereโs a 6-step roadmap to master Python the smart way (no fluff, just action)๐
๐น ๐ฆ๐๐ฒ๐ฝ ๐ญ: Learn the Basics (Donโt Skip This!)
โ Variables, data types (int, float, string, bool)
โ Loops (for, while), conditionals (if/else)
โ Functions and user input
Start with:
Python.org Docs
YouTube: Programming with Mosh / CodeWithHarry
Platforms: W3Schools / SoloLearn / FreeCodeCamp
Spend a week here.
Practice > Theory.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฎ: Automate Boring Stuff (Itโs Fun + Useful!)
โ Rename files in bulk
โ Auto-fill forms
โ Web scraping with BeautifulSoup or Selenium
Read: โAutomate the Boring Stuff with Pythonโ
Itโs beginner-friendly and practical!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฏ: Build Mini Projects (Your Confidence Booster)
โ Calculator app
โ Dice roll simulator
โ Password generator
โ Number guessing game
These small projects teach logic, problem-solving, and syntax in action.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฐ: Dive Into Libraries (Pythonโs Superpower)
โ Pandas and NumPy โ for data
โ Matplotlib โ for visualizations
โ Requests โ for APIs
โ Tkinter โ for GUI apps
โ Flask โ for web apps
Libraries are what make Python powerful. Learn one at a time with a mini project.
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฑ: Use Git + GitHub (Be a Real Dev)
โ Track your code with Git
โ Upload projects to GitHub
โ Write clear README files
โ Contribute to open source repos
Your GitHub profile = Your online CV. Keep it active!
๐น ๐ฆ๐๐ฒ๐ฝ ๐ฒ: Build a Capstone Project (Level-Up!)
โ A weather dashboard (API + Flask)
โ A personal expense tracker
โ A web scraper that sends email alerts
โ A basic portfolio website in Python + Flask
Pick something that solves a real problemโbonus if it helps you in daily life!
๐ฏ ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐๐๐ต๐ผ๐ป = ๐๐ฒ๐ฎ๐ฟ๐ป๐ถ๐ป๐ด ๐ฃ๐ผ๐๐ฒ๐ฟ๐ณ๐๐น ๐ฃ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ ๐ฆ๐ผ๐น๐๐ถ๐ป๐ด
You donโt need to memorize code. Understand the logic.
Google is your best friend. Practice is your real teacher.
Python Resources: https://whatsapp.com/channel/0029Vau5fZECsU9HJFLacm2a
ENJOY LEARNING ๐๐
๐4
Best GitHub Repos for Computer Science Students๐ฅ!!!!
๐ Awesome:
https://github.com/sindresorhus/awesome
๐ Developer Roadmap:
https://github.com/kamranahmedse/developer-roadmap
๐ The Algorithms:
https://github.com/TheAlgorithms
๐ Tech Interview Handbook:
https://github.com/yangshun/tech-interview-handbook
๐ Project Based Learning:
https://github.com/practical-tutorials/project-based-learning
๐ Awesome Cheatsheets:
https://github.com/LeCoupa/awesome-cheatsheets
๐ Front End Checklist:
https://github.com/thedaviddias/Front-End-Checklist
Credits: https://whatsapp.com/channel/0029Vawixh9IXnlk7VfY6w43
๐ Awesome:
https://github.com/sindresorhus/awesome
๐ Developer Roadmap:
https://github.com/kamranahmedse/developer-roadmap
๐ The Algorithms:
https://github.com/TheAlgorithms
๐ Tech Interview Handbook:
https://github.com/yangshun/tech-interview-handbook
๐ Project Based Learning:
https://github.com/practical-tutorials/project-based-learning
๐ Awesome Cheatsheets:
https://github.com/LeCoupa/awesome-cheatsheets
๐ Front End Checklist:
https://github.com/thedaviddias/Front-End-Checklist
Credits: https://whatsapp.com/channel/0029Vawixh9IXnlk7VfY6w43
โค1๐1
Sample email template to reach out to HRโs as fresher
I hope you will found this helpful ๐
Hi Jasneet,
I recently came across your LinkedIn post seeking a React.js developer intern, and I am writing to express my interest in the position at Airtel. As a recent graduate, I am eager to begin my career and am excited about the opportunity.
I am a quick learner and have developed a strong set of dynamic and user-friendly web applications using various technologies, including HTML, CSS, JavaScript, Bootstrap, React.js, Vue.js, PHP, and MySQL. I am also well-versed in creating reusable components, implementing responsive designs, and ensuring cross-browser compatibility.
I am confident that my eagerness to learn and strong work ethic will make me an asset to your team.
I have attached my resume for your review. Thank you for considering my application. I look forward to hearing from you soon.
Thanks!
I hope you will found this helpful ๐
๐4
If I Were to Start My Data Science Career from Scratch, Here's What I Would Do ๐
1๏ธโฃ Master Advanced SQL
Foundations: Learn database structures, tables, and relationships.
Basic SQL Commands: SELECT, FROM, WHERE, ORDER BY.
Aggregations: Get hands-on with SUM, COUNT, AVG, MIN, MAX, GROUP BY, and HAVING.
JOINs: Understand LEFT, RIGHT, INNER, OUTER, and CARTESIAN joins.
Advanced Concepts: CTEs, window functions, and query optimization.
Metric Development: Build and report metrics effectively.
2๏ธโฃ Study Statistics & A/B Testing
Descriptive Statistics: Know your mean, median, mode, and standard deviation.
Distributions: Familiarize yourself with normal, Bernoulli, binomial, exponential, and uniform distributions.
Probability: Understand basic probability and Bayes' theorem.
Intro to ML: Start with linear regression, decision trees, and K-means clustering.
Experimentation Basics: T-tests, Z-tests, Type 1 & Type 2 errors.
A/B Testing: Design experimentsโhypothesis formation, sample size calculation, and sample biases.
3๏ธโฃ Learn Python for Data
Data Manipulation: Use pandas for data cleaning and manipulation.
Data Visualization: Explore matplotlib and seaborn for creating visualizations.
Hypothesis Testing: Dive into scipy for statistical testing.
Basic Modeling: Practice building models with scikit-learn.
4๏ธโฃ Develop Product Sense
Product Management Basics: Manage projects and understand the product life cycle.
Data-Driven Strategy: Leverage data to inform decisions and measure success.
Metrics in Business: Define and evaluate metrics that matter to the business.
5๏ธโฃ Hone Soft Skills
Communication: Clearly explain data findings to technical and non-technical audiences.
Collaboration: Work effectively in teams.
Time Management: Prioritize and manage projects efficiently.
Self-Reflection: Regularly assess and improve your skills.
6๏ธโฃ Bonus: Basic Data Engineering
Data Modeling: Understand dimensional modeling and trade-offs in normalization vs. denormalization.
ETL: Set up extraction jobs, manage dependencies, clean and validate data.
Pipeline Testing: Conduct unit testing and ensure data quality throughout the pipeline.
I have curated the best interview resources to crack Data Science Interviews
๐๐
https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D
Like if you need similar content ๐๐
1๏ธโฃ Master Advanced SQL
Foundations: Learn database structures, tables, and relationships.
Basic SQL Commands: SELECT, FROM, WHERE, ORDER BY.
Aggregations: Get hands-on with SUM, COUNT, AVG, MIN, MAX, GROUP BY, and HAVING.
JOINs: Understand LEFT, RIGHT, INNER, OUTER, and CARTESIAN joins.
Advanced Concepts: CTEs, window functions, and query optimization.
Metric Development: Build and report metrics effectively.
2๏ธโฃ Study Statistics & A/B Testing
Descriptive Statistics: Know your mean, median, mode, and standard deviation.
Distributions: Familiarize yourself with normal, Bernoulli, binomial, exponential, and uniform distributions.
Probability: Understand basic probability and Bayes' theorem.
Intro to ML: Start with linear regression, decision trees, and K-means clustering.
Experimentation Basics: T-tests, Z-tests, Type 1 & Type 2 errors.
A/B Testing: Design experimentsโhypothesis formation, sample size calculation, and sample biases.
3๏ธโฃ Learn Python for Data
Data Manipulation: Use pandas for data cleaning and manipulation.
Data Visualization: Explore matplotlib and seaborn for creating visualizations.
Hypothesis Testing: Dive into scipy for statistical testing.
Basic Modeling: Practice building models with scikit-learn.
4๏ธโฃ Develop Product Sense
Product Management Basics: Manage projects and understand the product life cycle.
Data-Driven Strategy: Leverage data to inform decisions and measure success.
Metrics in Business: Define and evaluate metrics that matter to the business.
5๏ธโฃ Hone Soft Skills
Communication: Clearly explain data findings to technical and non-technical audiences.
Collaboration: Work effectively in teams.
Time Management: Prioritize and manage projects efficiently.
Self-Reflection: Regularly assess and improve your skills.
6๏ธโฃ Bonus: Basic Data Engineering
Data Modeling: Understand dimensional modeling and trade-offs in normalization vs. denormalization.
ETL: Set up extraction jobs, manage dependencies, clean and validate data.
Pipeline Testing: Conduct unit testing and ensure data quality throughout the pipeline.
I have curated the best interview resources to crack Data Science Interviews
๐๐
https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D
Like if you need similar content ๐๐
๐2
DSA Handwritten Notes
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