Oracle 1Z0-1124-25 Exam Dumps

Context: Tunnel flapping over FastConnect vs. public internet.

Option A: Congestion/packet loss is less likely over FastConnect's dedicated link than the unpredictable public internet---correct.

Option B: Mismatched keys/parameters would prevent tunnel establishment, not flapping---equally likely in both.

Option C: MTU issues cause fragmentation in both scenarios---equally likely.

Option D: BGP flapping is more relevant with FastConnect's dynamic routing---more likely here.

Conclusion: Option A is less likely over FastConnect.

Oracle notes:

'FastConnect provides a stable, dedicated connection, reducing congestion and packet loss compared to public internet VPNs.'

This supports Option A. Reference: IPSec over FastConnect - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/settingupIPSec.htm#fastconnect).

Objective: Enable DNSSEC to secure OCI DNS against spoofing.

DNSSEC Process: Requires enabling on the zone, generating keys, and updating the registrar.

Evaluate Options:

A: Steering policies manage traffic, not DNSSEC; incorrect.

B: OCI DNS auto-generates keys; manual upload unnecessary; incorrect.

C: Enabling DNSSEC starts the process, provides DS record; correct first step.

D: Resolver validation is client-side, not enabling DNSSEC; incorrect.

Conclusion: Enabling DNSSEC on the zone is the critical first step.

DNSSEC setup begins at the zone level. The Oracle Networking Professional study guide states, 'The first step to enable DNSSEC in OCI DNS is to activate it on the zone, which generates keys and provides a DS record to share with your registrar' (OCI Networking Documentation, Section: DNSSEC Configuration). This establishes the chain of trust.

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, ensuring protection 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).

Goal: Ensure OCI-Azure traffic during BGP disruption.

Option A: Static routes bypass BGP dependency, maintaining connectivity---correct.

Option B: Disabling BGP stops routing---incorrect.

Option C: Notification doesn't ensure connectivity---incorrect.

Option D: Keepalive timers delay detection, not prevent disruption---incorrect.

Conclusion: Option A is most critical.

Oracle notes:

'For uninterrupted OCI-Azure Interconnect traffic during BGP maintenance, configure static routes between VCNs and VNets.'

This supports Option A. Reference: OCI-Azure Interconnect - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/ociazureinterconnect.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).