Last-mile 1Z0-1124-25 review: VCN and subnet patterns, DRG hub-and-spoke pickers, routing table reminders, and security list vs NSG decision tables.
Use this for last‑mile review. Pair it with the Syllabus.
| You need… | Prefer |
|---|---|
| Public internet ingress/egress | Internet Gateway (IGW) |
| Private subnet outbound only | NAT Gateway |
| Private access to Oracle services | Service Gateway |
| On-prem and cross-VCN routing hub | DRG |
| You need… | Prefer |
|---|---|
| Simple subnet-wide controls | Security lists |
| Granular, workload-level controls | NSGs |
Correct answers usually include least privilege NSGs for app tiers.
| Requirement | Prefer |
|---|---|
| Fast setup / lower cost | IPSec VPN |
| Higher bandwidth / predictable latency | FastConnect |
| Many VCNs / centralized routing | DRG hub-spoke |