GCP Session-1 Flow

8 Major Sections with 14+ Hands-On Labs:

1. VPC & Subnets - Global architecture, secondary CIDR ranges, Shared VPC for multi-project
2. Firewall & Security - Rules (with priority), network tags, service accounts, Cloud Armor WAF/DDoS
3. Routing & Load Balancing - Cloud Router BGP, ALB (Layer 7), NLB (Layer 4), NEGs for hybrid
4. Advanced Connectivity - Cloud VPN, Dedicated Interconnect, Cloud NAT, Private Service Connection
5. DNS & CDN - Cloud DNS (internal + public zones), Cloud CDN with caching strategies
6. Complete 3-Tier Lab - Production-ready bash script deploying entire architecture
7. Troubleshooting - Real debugging commands for VPC, LB, VPN issues
8. AWS Comparison - Complete service mapping + cost analysis

🔑 Key Takeaways for AWS Engineers:

Concept	AWS	GCP	Game Changer
VPC Scope	Regional	GLOBAL	One VPC spans all regions automatically
Firewall	Security Groups/ACLs	Unified Rules	Priority-based, combine both into one
Routing	Route table per subnet	One global table	Simpler multi-region deployments
Load Balancers	Multiple types	Focused types	Fewer options, both global by default
Hybrid Connectivity	Transit Gateway	Cloud Router + BGP	Automatic route learning (preferred)
Private IPs for Services	VPC Endpoints	Private Service Connection	Elegant for managed databases
NAT	NAT Gateway (per AZ)	Cloud NAT (per region)	More cost-efficient at scale
DNS Queries	$0.40/million	Free (included)	GCP advantage for high-query apps

🧪 Labs Included (Copy-Paste Ready):

1. Lab 1 - Multi-region VPC with secondary ranges
2. Lab 2 - Shared VPC setup (multi-project)
3. Lab 3 - 3-tier firewall configuration
4. Lab 4 - Network tags vs service accounts
5. Lab 5 - Private Google Access
6. Lab 6 - Cloud Armor policies
7. Lab 7 - Dynamic BGP routing
8. Lab 8 - Global HTTPS load balancer
9. Lab 9 - UDP gaming load balancer
10. Lab 10 - Hybrid load balancing (GCP + on-prem)
11. Lab 11 - Complete HA VPN setup
12. Lab 12 - Dedicated Interconnect
13. Lab 13 - Cloud NAT configuration
14. Lab 14 - Private Cloud SQL connectivity
15. Lab 15 - Cloud DNS (internal + public)
16. Lab 16 - Cloud CDN setup
17. Lab 17 - End-to-End production deployment

🚀 Real-Time Scenarios Covered:

• Multi-tier web application architecture
• Hybrid cloud (GCP + on-premises with BGP)
• Multi-region failover patterns
• Gradual migration (cloud + on-prem)
• High-availability VPN
• Global content delivery

💡 Everything Covered:

✅ All GCP networking components (no gaps) ✅ AWS comparison throughout (for context) ✅ Real troubleshooting commands (for production) ✅ Hands-on labs (for learning by doing) ✅ Cost analysis (to justify choices) ✅ Security best practices (firewalls, IAM, armor) ✅ Performance optimization (CDN, routing, LB) ✅ Hybrid connectivity (VPN, Interconnect, Cloud Router)

The guide is all visible, interactive, no downloads needed - perfect for learning and reference. You can click through sections, copy commands directly, and understand AWS→GCP mapping throughout.

Next Step: Open your GCP console and run Lab 17 (end-to-end deployment) to solidify your understanding! 🎯