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OCI 1Z0-1124-25 Guide: OCI Networking Professional

OCI 1Z0-1124-25 exam guide covering VCNs, subnets, routing, DRG connectivity, and hybrid design decisions.

1Z0-1124-25 is a path-selection and traffic-control exam. Strong answers usually come from deciding which network boundary, routing construct, or load-balancing layer the problem belongs to before choosing a service name.

DRG: Dynamic Routing Gateway, the OCI routing hub used for private connectivity and network attachment scenarios.

East-west traffic: Internal traffic moving between private services or tiers rather than in and out of the public edge.

What this guide emphasizes

  • VCN design, subnet boundaries, routing, and gateway decisions
  • DRG, FastConnect, DNS, and load-balancing roles
  • firewall and traffic-control placement
  • common exam traps around overlapping networking constructs

What strong answers usually do

  • classify the issue first as edge access, private connectivity, routing, name resolution, or traffic distribution
  • separate path construction from filtering and inspection
  • choose the narrowest network control that still solves the problem cleanly
  • keep public exposure deliberate instead of mixing public and private responsibilities casually

Use this exam guide in order

  • Build a schedule: Study Plan
  • Review path-selection and control-placement traps: Cheat Sheet
  • Clarify high-confusion networking terms: Glossary
  • Resolve last-week questions: FAQ
  • Check the primary Oracle and OCI sources: Resources

In this section

Revised on Monday, June 15, 2026
1Z0-1123-25
1Z0-1127-25