1z0-1124-25 Exam Dumps - Oracle Cloud Infrastructure 2025 Networking Professional

Goal: Balance global load balancing with regional WAF protection near users.

Option A: Single WAF in one region creates a bottleneck and increases latency—insufficient.

Option B: GLB distributes globally to regional Load Balancers, each with a WAF, ensuringprotection close to users—correct.

Option C: WAF before GLB centralizes protection, adding latency and a single failure point—incorrect.

Option D: Source IP routing with regional WAFs is less optimal than GLB’s health-based routing—less effective.

Conclusion: Option B optimizes both goals.

Oracle states:

"OCI GLB distributes traffic across regions. Pair with regional Load Balancers and WAFs for localized protection and optimal performance."This supports Option B. Reference:Global Load Balancer Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Balance/Concepts/globalbalance.htm).

Objective: Identify the service for Load Balancer traffic logs.

Option A: Flow Logs capture VCN traffic, not specific to Load Balancer—incorrect.

Option B: Service Logs are generic, not Load Balancer-specific—incorrect.

Option C: Load Balancer Logs provide detailed client and health check data—correct.

Option D: Audit Logs track API actions, not traffic—incorrect.

Conclusion: Load Balancer Logs are the best fit.

Oracle states:

"Load Balancer Logs offer detailed insights into client connections and backend health checks for Network Load Balancers.”This validates Option C. Reference:Load Balancer Logging - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Balance/Tasks/managinglogs.htm).

Problem:OKE web tier pods cannot reach the application tier.

Traffic Flow:Web tier (OKE) initiates outbound (egress) traffic to application tier (port 8080).

NSG Role:Controls traffic at VNIC level; must allow egress from OKE and ingress to app tier.

Evaluate Options:

A:Missing egress rule on OKE NSG blocks traffic; plausible but incomplete context.

B:Ingress on OKE NSG affects incoming traffic, not outbound to app tier; incorrect.

C:No ingress on OKE NSG doesn’t block egress to app tier; incorrect.

D:Egress limited to internet blocks app tier access (port 8080); most likely.

Conclusion:Missing egress rule to app tier NSG is the primary issue.

NSGs require explicit egress rules for outbound traffic. The Oracle Networking Professional study guide notes, "For OKE pods to communicate with other tiers, the node pool’s NSG must include egress rules to the destination NSG or CIDR on the required ports" (OCI Networking Documentation, Section: Network Security Groups with OKE). Option D reflects a common misconfiguration in IaC setups.

Problem: App tier can’t reach DB tier despite open security lists.

Option A: Flow Logs show traffic details but require analysis, slowing diagnosis—less efficient.

Option B: Connection Diagnostics tests connectivity (e.g., ping, traceroute) between resources, quickly pinpointing failures—correct.

Option C: Network Firewall controls traffic, not diagnoses—incorrect.

Option D: Bastion is for access, not troubleshooting—incorrect.

Conclusion: Connection Diagnostics is the best tool for quick isolation.

Oracle states:

"Connection Diagnostics provides rapid testing of network connectivity between OCI resources, ideal for isolating issues like tier-to-tier failures.”This validates Option B. Reference:Network Troubleshooting - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/troubleshooting.htm#connectiondiagnostics).