AWS Solution Architect Real-World Scenarios Practical Q&A for Certification & Interview Preparation (Part 12)
👋 Hello! I'm passionate about DevOps and have over 1+ years of experience in the field. I'm proficient in a variety of cutting-edge technologies and always motivated to expand my knowledge and skills. Let's connect and grow together!
SKILLS:
🔹 Languages & Runtimes: Python, Shell Scripting, HCL, YAML 🔹 Cloud Technologies: AWS, Microsoft Azure, GCP 🔹 Infrastructure Tools: Docker, Terraform, AWS CloudFormation 🔹 Other Tools: Linux, Git and GitHub Actions, Jenkins, Jira, GitLab (beginner), Docker, AWS DevOps 🔹 Web Development: HTML, CSS, Bootstrap, Python, SQL
Job & Responsibilities:
🚀 Improved development efficiency by implementing CI/CD pipelines, resulting in a 30% reduction in deployment time on the test server. 🔒 Strengthened deployment and testing reliability by utilizing Docker containers and optimizing Dockerfile, reducing development issues on the test server by 20%. ⚙️ Automated S3 bucket log creation with Shell scripting, eliminating 100% of manual search and saving 2 hours per week. 📅 Scheduled EC2 instance start/stop using Lambda functions and Event Bridge, leading to a 25% decrease in infrastructure costs. 🔧 Utilized AWS, Linux, Python, Docker, Shell scripting, Terraform, Jenkins Pipelines, and automation to streamline workflows and improve overall system performance.
I'm very detail-oriented and possess strong written and verbal communication skills. As a high performer with a possibility mindset, I strive to solve problems using efficient approaches.
Let's Connect & Grow:
If you find my profile suitable for the role you are searching for, please feel free to reach out to me at sumanprasad9766@gmail.com.
🌐 Introduction
In this part, we focus on Amazon CloudWatch and AWS CloudTrail, along with practical troubleshooting using AWS tools.
These services are essential for monitoring, logging, auditing, and troubleshooting your AWS infrastructure in real-world environments.
📊 Amazon CloudWatch
⏰ CloudWatch Alarms for Monitoring
🔹 Scenario 1: Monitor EC2 CPU Utilization
Answer:
Create CloudWatch alarm on CPUUtilization
Set threshold (e.g., 80%)
Trigger SNS notification
🔹 Scenario 2: Monitor Lambda Errors
Answer:
Use Lambda Errors metric
Create alarm for threshold
🔹 Scenario 3: Monitor RDS Disk Space
Answer:
Use FreeStorageSpace metric
Enable RDS Enhanced Monitoring
📈 CloudWatch Metrics
🔹 Scenario 4: EC2 Metrics
Answer:
Monitor:
CPUUtilization
DiskReadOps / WriteOps
NetworkIn / Out
StatusCheckFailed
🔹 Scenario 5: ECS Monitoring
Answer:
Monitor:
CPUUtilization
MemoryUtilization
Network metrics
🔹 Scenario 6: API Gateway Monitoring
Answer:
Monitor:
Latency
4XXError
5XXError
Request Count
📝 AWS CloudTrail
🔍 Audit and Logging
🔹 Scenario 7: Track S3 Access
Answer:
Enable CloudTrail
Filter logs by bucket and actions
🔹 Scenario 8: Monitor IAM User Activity
Answer:
Use CloudTrail Event History
Filter by IAM user
🔹 Scenario 9: Audit Security Group Changes
Answer:
Filter:
AuthorizeSecurityGroupIngress
RevokeSecurityGroupIngress
🔗 CloudTrail Integration
🔹 Scenario 10: Send Logs to SIEM
Answer:
- Use CloudWatch Logs + Lambda
🔹 Scenario 11: Track AWS Config Changes
Answer:
- CloudTrail logs AWS Config activities
🔹 Scenario 12: Track Lambda Invocations
Answer:
- Filter logs for Lambda Invoke events
🛠️ Troubleshooting with AWS Tools
🔹 Scenario 13: EC2 Not Accessible
Answer:
Use:
CloudWatch Logs
VPC Flow Logs
EC2 System Logs
🔹 Scenario 14: High Latency Issues
Answer:
Use CloudWatch Metrics
Set alarms
🔹 Scenario 15: Lambda Failures
Answer:
Check:
CloudWatch Logs
Execution metrics
📦 AWS Config for Compliance
🔹 Scenario 16: Enforce Security Group Compliance
Answer:
- Use AWS Config rules
🔹 Scenario 17: Resource Inventory
Answer:
Use:
AWS Config
Systems Manager Inventory
🔹 Scenario 18: Enforce Resource Compliance
Answer:
Use:
AWS Config Rules
Service Control Policies (SCPs)
⏰ Advanced Monitoring Scenarios
🔹 Scenario 19: EC2 Disk Usage Alert
Answer:
Use CloudWatch Agent
Monitor DiskSpaceUtilization
🔹 Scenario 20: Lambda Duration Alert
Answer:
- Monitor Duration metric
🔹 Scenario 21: EC2 Status Check Failures
Answer:
- Monitor StatusCheckFailed metric
📊 Advanced Metrics Monitoring
🔹 Scenario 22: Monitor EC2 Memory Usage
Answer:
- Install CloudWatch Agent
🔹 Scenario 23: Monitor RDS IOPS
Answer:
Use:
ReadIOPS
WriteIOPS
🔹 Scenario 24: Monitor S3 Storage Growth
Answer:
Use:
- BucketSizeBytes
🔍 Advanced CloudTrail Auditing
🔹 Scenario 25: Track IAM Role Changes
Answer:
Filter:
CreateRole
AttachRolePolicy
🔹 Scenario 26: Detect Unauthorized API Calls
Answer:
- Filter logs by region + actions
🔹 Scenario 27: Investigate S3 Access
Answer:
Analyze:
GetObject
PutObject
Source IP
🔹 Scenario 28: Notify on S3 Changes
Answer:
- Use CloudWatch Logs + SNS
🔹 Scenario 29: Secure CloudTrail Logs
Answer:
Store in S3 with SSE-KMS
Enable access logging
🔹 Scenario 30: Detect IAM Misconfigurations
Answer:
Analyze:
AttachUserPolicy
DetachUserPolicy
Use CloudWatch Insights
🧠 Key Takeaways
Use CloudWatch for monitoring and alerting
Use CloudTrail for auditing and security tracking
Combine logs + metrics for troubleshooting
Use AWS Config for compliance and governance
Automate alerts and monitoring for production systems
