Top 10 high-level EC2 scenario-based questions to challenge your AWS & DevOps skills

 𝙐𝙣𝙙𝙚𝙧𝙨𝙩𝙖𝙣𝙙𝙞𝙣𝙜 𝙇𝙞𝙣𝙪𝙭 𝘿𝙞𝙧𝙚𝙘𝙩𝙤𝙧𝙞𝙚𝙨 – 𝘼 𝙈𝙪𝙨𝙩-𝙆𝙣𝙤𝙬 𝙛𝙤𝙧 𝙀𝙫𝙚𝙧𝙮 𝙀𝙣𝙜𝙞𝙣𝙚𝙚𝙧! 🐧💻

Ever wondered what those cryptic 𝗟𝗶𝗻𝘂𝘅 𝗱𝗶𝗿𝗲𝗰𝘁𝗼𝗿𝗶𝗲𝘀 actually do? Whether you're a 𝗗𝗲𝘃𝗢𝗽𝘀 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿, 𝘀𝘆𝘀𝘁𝗲𝗺 𝗮𝗱𝗺𝗶𝗻, 𝗼𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, understanding the Linux filesystem is crucial. Here’s a breakdown of the key directories under /root:

📂 /𝗿𝗼𝗼𝘁 – The top-level directory where everything starts! Only the root user can write here.

📂 /𝗯𝗶𝗻 – Essential Linux commands like ls, cp, and cat are stored here.

📂 /𝗯𝗼𝗼𝘁 – Contains kernel and boot loader files needed to start the system.

📂 /𝗱𝗲𝘃 – Houses device files (e.g., /dev/null). Yes, even hardware is treated as a file in Linux!

📂 /𝗲𝘁𝗰 – The brain of your system! Stores configuration files and shell scripts.

📂 /𝗵𝗼𝗺𝗲 – Your personal safe space—stores user documents, files, and settings.

📂 /𝗹𝗶𝗯 – Holds essential library files used by system binaries.

📂 /𝗺𝗲𝗱𝗶𝗮 – Used for USB drives, external storage, and other media attachments.

📂 /𝗺𝗻𝘁 – Temporary mount point for filesystems.

📂 /𝗼𝗽𝘁 – For third-party applications and add-ons.

📂 /𝘁𝗺𝗽 – Temporary scratch space for system and user files.

📂 /𝘂𝘀𝗿 – Despite its name, this is mostly for user-installed applications (not personal files).

🔍 𝗢𝘁𝗵𝗲𝗿 𝗸𝗲𝘆 𝗱𝗶𝗿𝗲𝗰𝘁𝗼𝗿𝗶𝗲𝘀:

📂 /𝗽𝗿𝗼𝗰 – Virtual filesystem for process and system information.

📂 /𝗿𝘂𝗻 – Stores runtime data for system processes.

📂 /𝘀𝗯𝗶𝗻 – System binaries only accessible by root.

📂 /𝘃𝗮𝗿 – Stores logs, caches, and dynamically changing data.

💡 𝗣𝗿𝗼 𝗧𝗶𝗽: 𝗨𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴 𝗟𝗶𝗻𝘂𝘅 𝗱𝗶𝗿𝗲𝗰𝘁𝗼𝗿𝗶𝗲𝘀 𝗵𝗲𝗹𝗽𝘀 𝘆𝗼𝘂 𝗻𝗮𝘃𝗶𝗴𝗮𝘁𝗲 𝘁𝗵𝗲 𝘀𝘆𝘀𝘁𝗲𝗺 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝘁𝗹𝘆, 𝘁𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁 𝗶𝘀𝘀𝘂𝗲𝘀, 𝗮𝗻𝗱 𝘀𝗲𝗰𝘂𝗿𝗲 𝗰𝗿𝗶𝘁𝗶𝗰𝗮𝗹 𝗳𝗶𝗹𝗲𝘀.