TEST DAY

Welcome to the TEST DAY! This collection is designed to challenge and enhance your skills in various technical domains, ranging from SQL and Regex to full-stack development and text processing. Each test is self-contained, focusing on a specific area to assess your proficiency and problem-solving abilities.

Deliverables

1. Update your Github repository with the new changes you added.
2. For each exercise, read the README.md file, follow the steps to complete the exercise, put the answer on AWSWERS.md file .and save your work.
3. Commit your work and push it to on the branch you created.

Setting Up Your EC2 Machine

Before starting your work, make sure you are executing everything using the ec2-user, if not, execute the command :

su ec2-user

I - Setting up your Github account and getting your Tests Day repository:

Follow these steps to connect your GitHub account to your EC2 machine.

1. Configure Git

Set your global Git configuration with your name and email:

git config --global user.name "Your Name"
git config --global user.email "[email protected]"

Generate a new SSH key pair for authentication:

ssh-keygen -t ed25519 -C "[email protected]"

• Save the key to the default location (e.g., /home/ec2-user/.ssh/id_ed25519).
• Optionally, set a passphrase or leave it blank.

2. Add the SSH Key to the SSH Agent

Start the SSH agent and add your new key:

eval "$(ssh-agent -s)"
ssh-add ~/.ssh/id_ed25519

3. Add Your SSH Key to GitHub

1. Display the public key:

   cat ~/.ssh/id_ed25519.pub

2. Copy the output of the above command.
3. Go to your GitHub account; on your local machine:
   • Navigate to Settings > SSH and GPG Keys.
   • Click New SSH Key.
   • Paste the key and give it a title (e.g., "EC2 Machine").
   • Click Add SSH Key.

4. Test the SSH Connection

Verify that your EC2 instance is successfully connected to GitHub:

ssh -T [email protected]

You should see a message like this:

Hi username! You've successfully authenticated, but GitHub does not provide shell access.

II - Setting Up a New Git Repository and Pushing It to GitHub

Step 1: Initialize a New Git Repository

1. Navigate to your project directory:

   cd ~/home/ec2-user/K-Internship-2025

2. Initialize the repository:

   git init

   This creates a new .git directory in your project folder.

---

Step 2: Add Files to the Repository

1. Check the status of your repository:

   git status

2. Add files to the staging area:

   git add .

   This stages all files in the current directory for the next commit. You can also add specific files:

   git add filename

3. Commit the changes:

   git commit -m "Initial commit"

---

Step 3: Create a Repository on GitHub

1. Log in to your GitHub account.
2. Click the New button to create a new repository.
3. Provide a repository name, optional description, and choose visibility (Public/Private).
4. Do not initialize with a README (we already have local files).
5. Click Create Repository.

---

Step 4: Link Your Local Repository to GitHub

1. Copy the repository's SSH or HTTPS URL from GitHub.

2. Add the remote repository to your local Git repository:

   git remote add origin <repository-url>

   Example:

   git remote add origin [email protected]:username/repository-name.git

3. Verify the remote URL:

   git remote -v

---

Step 5: Push the Code to GitHub

1. Push your local changes to the GitHub repository:

   git push -u origin main

   Replace main with master if your default branch is named master.

2. For subsequent pushes, you can simply use:

   git push

Directory Overview

1. TEST 1 - SQL

• Objective: Test your ability to write efficient SQL queries.
• Contents:
  • Tasks related to data retrieval, aggregation, and manipulation.
  • Real-world datasets to simulate practical scenarios.
• Skills Assessed:
  • Data base architecture.
  • Use of SQL functions and joins.

2. TEST 2 - A SMALL FULL STACK APP

• Objective: Work on a simple full-stack application.
• Contents:
  • Frontend: Basic UI/UX implementation.
  • Backend: Server setup and API integration.
  • Database: CRUD operations with a database.
• Skills Assessed:
  • Frontend and backend integration.
  • RESTful API design.
  • Debugging skills.

3. TEST 3 - A QUICK QUIZ

• Objective: Solve a series of quick programming and problem-solving challenges.
• Contents:
  • Short tasks across multiple domains, such as math, algorithms, and puzzles.
• Skills Assessed:
  • Logical reasoning.
  • Time management.

4. TEST 4 - XSLT

• Objective: Work with XML and XSLT for data transformation.
• Contents:
  • Transform XML data into readable formats (HTML, text, etc.) using XSLT.
• Skills Assessed:
  • Understanding of XML structure.
  • Mastery of XSLT templates and functions.
  • Formatting and data transformation techniques.

5. TEST 5 - DO YOU REGEX?

• Objective: Solve complex text matching and extraction tasks using Regular Expressions.
• Contents:
  • Exercises involving pattern matching, data validation, and string manipulation.
• Skills Assessed:
  • Proficiency with Regex syntax.
  • Advanced text processing techniques.

6. TEST 6 - GREP IT

• Objective: Use Linux command-line tools like grep to extract and process data.
• Contents:
  • Real-world log file analysis tasks.
  • Data filtering and transformation using Linux commands.
• Skills Assessed:
  • Mastery of grep, awk, sed, and other CLI tools.
  • Automation of text processing tasks.

Good luck and happy coding!

—
The Keiken Team