Oracle 1z0-1124-25 Dumps Questions Answers

Requirement: Secure outbound connection to a public API without exposing the instance.

Option A: Internet Gateway allows inbound and outbound traffic, exposing the instance—violates policy.

Option B: NAT Gateway enables outbound-only internet access from a private subnet. A security list restricts traffic to the API’s IP, ensuring security—correct.

Option C: Service Gateway is for OCI services, not third-party APIs—incorrect.

Option D: DRG with FastConnect is for private connections (e.g., on-premises), not internet APIs—incorrect.

Conclusion: Option B meets the policy and connectivity needs.

Oracle notes:

"A NAT Gateway allows instances in a private subnet to initiate outbound internet traffic without receiving inbound connections. Use security lists to restrict destinations."This supports Option B. Reference:NAT Gateway Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/NATgateway.htm).

Goal: End-to-end encryption (client-to-LB and LB-to-backend).

Option A: HTTP backend set leaves LB-to-backend unencrypted—incorrect.

Option B: HTTPS listener and backend set with certificates ensures full encryption—correct and mandatory.

Option C: Backend-only certificates lack LB termination—incorrect.

Option D: TCP proxy bypasses LB encryption—incorrect.

Conclusion: Option B is mandatory for end-to-end encryption.

Oracle states:

"For end-to-end encryption, configure the HTTPS listener with an SSL certificate and set the backend protocol to HTTPS, requiring certificates on backend instances."This validates Option B. Reference:Load Balancer SSL - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Balance/Tasks/managingssl.htm).

Requirements:Isolated segments, efficient IP use, easy management.

Options Analysis:

A:Separate VCNs waste IPs, high overhead; inefficient.

B:Subnets with NSGs optimize IP use, simplify control; correct.

C:Compartments are for IAM, not network isolation; incorrect.

D:VM firewalls are complex, less secure; unsuitable.

Conclusion:Subnets with NSGs are most efficient.

Subnets and NSGs provide tenant isolation. The Oracle Networking Professional study guide states, "For multi-tenant applications, use separate private subnets within a VCN and enforce isolation with NSGs and routing rules, optimizing IP utilization and management" (OCI Networking Documentation, Section: VCN Design). This balances security and efficiency.