AZ-104 exam Tips & Tricks

Md Mehedi Hasan Asif — Fri, 10 Jul 2026 08:08:46 +0000

I passed the AZ-104 exam with a score of 800. 🎉

Preparation time tips:

Never ever memorize answers. First, understand how it works and do practical labs.

Never skip learning: RBAC, Entra ID, Azure Policy, Dynamic Groups, App Services (Plan & Swapping), VNet Peering, IP ranges, NSG, Bicep, ARM, Log Analytics Workspace, Action Groups, Backup, Recovery Services Vault (RSV), and Backup Policies.

Exam time tips:

Read the question in 3x mode. First, see what they need and check the answer options. Then, find the important information from the description. This tip is very helpful, especially for case studies. Remember: most of the information is unnecessary—they include a lot of garbage information just to waste your time. It's a mind game.

If you're not sure whether your answer is correct, mark it for review and move on.

learning resources:

🔐 Azure RBAC Overview
https://learn.microsoft.com/azure/role-based-access-control/overview?wt.mc_id=studentamb_510263

🌐 Azure Virtual Network Peering
https://learn.microsoft.com/azure/virtual-network/virtual-network-peering-overview?wt.mc_id=studentamb_510263

🛡️ Azure Network Security Groups Overview https://learn.microsoft.com/azure/virtual-network/network-security-groups-overview?wt.mc_id=studentamb_510263

🏗️ Build a strong cloud foundation with Azure Architecture Center: https://learn.microsoft.com/azure/architecture/?wt.mc_id=studentamb_510263

💾 Learn how Azure Backup protects your workloads and recovery strategy: https://learn.microsoft.com/azure/backup/?wt.mc_id=studentamb_510263

📈 Explore Azure Monitor and Log Analytics for monitoring and troubleshooting:
https://learn.microsoft.com/azure/azure-monitor/?wt.mc_id=studentamb_510263

☁️ EC2: AWS-Elastic Compute Cloud (Real-World Friendly )

Md Mehedi Hasan Asif — Wed, 30 Jul 2025 18:11:31 +0000

When I first started learning cloud, EC2 (Elastic Compute Cloud) felt like magic — a virtual computer you can launch anytime, anywhere. Here's my simplified and beginner-friendly breakdown of EC2 ⬇️

🔹 Horizontal vs Vertical Scaling

Horizontal Scaling ➜ Add more instances (like hiring more employees to share the work)
Vertical Scaling ➜ Add more power (CPU, RAM) to one instance (like upgrading a single computer)

🔹 Elasticity in Cloud?

Elastic = The ability to scale up/down automatically — more power when needed, less cost when not.

🔹 Core EC2 Concepts🔹

EC2 ➜ Your virtual machine (like a cloud-based computer)
AMI ➜ OS template (Ubuntu, Amazon Linux, etc.)
Instance Type ➜ CPU/RAM combo (e.g., t2.micro)
Key Pair ➜ SSH login credentials
Security Group ➜ Like a firewall (allow/deny traffic)
Elastic IP ➜ Static IP that never changes
EBS ➜ Your hard disk in the cloud
Root Volume ➜ Main OS disk
User Data ➜ Script that runs when instance boots up

🔹 Networking & Access

Public IP ➜ Temporary (changes after stop/start)
Private IP ➜ Used inside your VPC
VPC ➜ Your private network in AWS
Internet Gateway ➜ Needed for internet access
NAT Gateway ➜ Allows private instances to go online securely

🔹 Management & Monitoring

Start/Stop ➜ You won’t be charged for compute while stopped (but storage charges stay)
Terminate ➜ Deletes the instance (no going back!)
Status Checks ➜ AWS health checks
CloudWatch ➜ Monitoring metrics (CPU, RAM, etc.)
Auto Recovery ➜ Restarts instance if failure is detected

*🔧 Troubleshooting *

🔄 Changing instance type? Don’t worry — data stays safe on EBS
❌ SSH not working?
✅ Check: Key pair, port 22, correct username (ec2-user), security group rules
❌ IP keeps changing?
✅ Use Elastic IP
❌ Website not loading?
✅ Check port 80/443 in security group
❌ Instance feels slow?
✅ Upgrade instance type
❌ Crashes?
✅ Detach EBS → Attach to another instance → Troubleshoot
❌ No internet?
✅ Check: Route table + internet gateway + public IP

📌 Best Practices
Use Elastic IP for public-facing apps
Take regular EBS snapshots before major changes
Tag instances (name, environment, purpose)
Keep security group rules minimal and strict
Use IAM Roles for access (avoid hardcoding credentials!)

🤔 Why am I posting this?
To document the journey and make EC2 feel simpler and more approachable for anyone exploring cloud technologies. Your feedback & thoughts are always welcome!

AWS #CloudComputing #EC2 #LearningJourney #DevOps #CloudSecurity #note #awsNOTe #cloudNOTE

DEV Community: Md Mehedi Hasan Asif

AZ-104 exam Tips & Tricks

☁️ EC2: AWS-Elastic Compute Cloud (Real-World Friendly )

🔹 Core EC2 Concepts🔹

AWS #CloudComputing #EC2 #LearningJourney #DevOps #CloudSecurity #note #awsNOTe #cloudNOTE