Most Recent Oracle 1Z0-1124-25 Exam Dumps

Constraints: High bandwidth, low latency, secure private connection, redundancy.

Option A: Single VPN Connect offers security but lacks high bandwidth, low latency, and redundancy---unsuitable for migration needs.

Option B: Multiple VPNs improve redundancy but still rely on public internet, limiting bandwidth and latency performance compared to dedicated circuits.

Option C: Single FastConnect provides high bandwidth, low latency, and privacy via a dedicated line, but lacks redundancy.

Option D: Multiple FastConnect circuits ensure high bandwidth and low latency with redundancy. Adding multiple VPNs as backup enhances resilience, meeting all constraints.

Conclusion: Option D is the most suitable and resilient, balancing performance and continuity.

Oracle states:

'FastConnect provides a private, high-bandwidth, low-latency connection to OCI. Use multiple circuits for redundancy.'

'Combine FastConnect with IPSec VPN for additional failover options.'

Option D aligns with this guidance. Reference: FastConnect Overview - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/fastconnect.htm).

Goal: Apply least privilege for Cloud Shell to run diagnostics (ping, traceroute, nc) within a VCN.

Option A: Read permission on all virtual-network-family resources is too broad, granting unnecessary access beyond diagnostics---violates least privilege.

Option B: Instance Principals use temporary credentials tied to the Cloud Shell instance, enhancing security. A dynamic group with ''read'' and ''use'' permissions on NSGs and VNICs allows inspecting configurations and running diagnostics (e.g., via VNICs), meeting the exact need---correct.

Option C: Inspect permission only provides metadata access, insufficient for running diagnostics (e.g., no ''use'' for traffic)---incorrect.

Option D: Use permission on virtual-network-family at tenancy level is overly permissive, granting access to all network resources---violates least privilege.

Conclusion: Option B is the most restrictive and secure, aligning with least privilege.

Oracle states:

'Instance Principals allow services like Cloud Shell to authenticate without static credentials. Policies with 'read' and 'use' on specific resources (e.g., network-security-groups, vnics) enable diagnostics while adhering to least privilege.'

This supports Option B. Reference: Instance Principals - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Identity/Tasks/instanceprincipals.htm).

Requirement Analysis: The solution must ensure private access to Object Storage without public internet traversal, while being cost-effective.

Evaluate OCI Components:

Internet Gateway: Provides public internet access, unsuitable for private connectivity.

NAT Gateway: Allows outbound internet access from private subnets, but traffic still exits OCI.

Service Gateway: Enables private access to OCI services like Object Storage within the same region.

DRG with FastConnect: Used for on-premises connectivity, not intra-OCI service access.

Option Assessment:

A: Uses public internet, violating the security policy.

B: HTTPS encrypts data, but traffic traverses the internet via NAT, violating the policy.

C: Service Gateway keeps traffic within OCI's private network, meeting security and cost goals.

D: Overly complex and costly, with public endpoints contradicting the requirement.

Conclusion: Service Gateway with regional Object Storage endpoints ensures private, secure, and cost-effective access.

The Service Gateway is designed for private access to OCI services like Object Storage, avoiding the public internet. The Oracle Networking Professional study guide states, 'A Service Gateway allows instances in a private subnet to access supported OCI services without an Internet Gateway or NAT Gateway, ensuring traffic remains within the Oracle network' (OCI Networking Documentation, Section: Service Gateway). Using the Oracle Services Network service CIDR label for the region ensures compatibility with Object Storage endpoints, optimizing cost and security.

Problem: Private subnet instances can't access Object Storage via Service Gateway.

Setup Check: Route rules point to Service Gateway; NSGs allow traffic.

Evaluate Causes:

A: Incorrect CIDR labels block Object Storage access; likely.

B: Internet Gateway irrelevant for Service Gateway; incorrect.

C: NSGs confirmed open, security lists secondary; less likely.

D: NAT Gateway not used here; incorrect.

Conclusion: Misconfigured Service Gateway CIDR is the most likely issue.

Service Gateway requires specific CIDR labels. The Oracle Networking Professional study guide states, 'For private subnets to access Object Storage via a Service Gateway, the gateway must be configured with the correct regional Oracle Services CIDR label' (OCI Networking Documentation, Section: Service Gateway Configuration). Misconfiguration prevents access despite proper routing.

Objective: Efficiently propagate on-premises route updates to multiple VCNs.

DRG Capabilities: Supports route distribution to attached VCNs.

Analyze Options:

A: Manual updates are inefficient and error-prone; unsuitable.

B: Centralized DRG with route distribution automates propagation; efficient.

C: Multiple DRGs add complexity and manual effort; inefficient.

D: Service Gateway is for OCI services, not route updates; incorrect.

Conclusion: Centralized DRG with route distribution is the most efficient method.

Route distribution in a DRG simplifies multi-region routing. The Oracle Networking Professional study guide notes, 'Using a centralized DRG with route distribution enabled allows routes learned from on-premises networks to be automatically propagated to all attached VCNs, reducing management overhead' (OCI Networking Documentation, Section: DRG Route Distribution). This leverages OCI's automation capabilities.