Week 7 Worklog

Week 7 Goals:

  • Organize and consolidate knowledge acquired in the first half of the internship.
  • Deepen understanding of Security and Resiliency in AWS.
  • Build a strong foundation for the Midterm Exam.

Tasks for This Week:

DayTaskStart DateCompletion DateReference
2Midterm Review:

Part 1: Security Fundamentals
- IAM (Identity & Access Management)
- KMS (Key Management Service)
- Security Groups & NACLs
- Secrets Manager
- GuardDuty (Threat Detection)
- Shield & WAF (DDoS and Web Application Protection)

Part 2: Resilient Architecture
- Core metrics: RTO/RPO
- Multi-AZ RDS
- Disaster Recovery Strategies
- Auto Scaling & Load Balancing
- Route 53 & DNS
- AWS Backup		20/10/202520/10/2025Review Link
3Self-study: Systematize security services knowledge and practice simulation labs21/10/202521/10/2025
4Self-study: Redraw High Availability (HA) and Disaster Recovery (DR) architecture diagrams to reinforce concepts22/10/202522/10/2025
5Take practice tests to review knowledge and identify weak areas23/10/202523/10/2025Practice Exams
6Compile questions and summarize key notes for final review24/10/202524/10/2025Additional Resources

Week 7 Achievements: Strengthening Security Awareness and Resilient Architecture

  • Defense in Depth Mindset:

    • Clearly distinguished between Security Groups (stateful, instance-level) and NACLs (stateless, subnet-level).
    • Understood protection at multiple layers: WAF for application layer (L7), Shield for infrastructure (L3/L4), and GuardDuty for intelligent threat detection.
    • Mastered the role of KMS and Secrets Manager in safeguarding sensitive data at rest and in transit.

  • Resiliency & Recovery:

    • Learned and internalized RTO (Recovery Time Objective) and RPO (Recovery Point Objective) for selecting appropriate DR strategies (Backup & Restore, Pilot Light, Warm Standby, Multi-site Active/Active).
    • Gained a clear understanding of Multi-AZ RDS for High Availability versus Read Replicas for scaling read operations.
    • Understood how Route 53, ELB, and Auto Scaling work together to build flexible, self-healing, and scalable architectures.