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Oracle 1z0-1124-25 Exam Syllabus Topics:TopicDetailsTopic 1

Troubleshoot OCI Networking and Connectivity Issues: This section of the exam measures the skills of a Cloud Operations Engineer and evaluates the ability to select appropriate OCI tools and services for troubleshooting network and connectivity problems. It also tests knowledge of using OCI logging services to diagnose and resolve configuration or performance issues effectively.

Topic 2

Implement and Operate Secure OCI Networking and Connectivity Solutions: This section of the exam measures the skills of a Cloud Security Specialist and centers around securing networking configurations and interconnectivity in OCI. It involves applying IAM policies for tenancy communication, using bastion services in multi-tier setups, exploring CloudShell capabilities, and evaluating network security layers like OCI Network Firewall, Web Application Firewall (WAF), edge services, and certificates. This section also references obsolete content related to IaC and OKE in networking architectures while touching on zero-trust packet routing models.

Topic 3

OCI Networking Best Practices: This section of the exam measures the skills of a Cloud Solutions Architect and covers essential best practices for designing secure, efficient, and scalable networking solutions in OCI. It includes architectural design, connectivity setup, security hardening, and monitoring and logging standards that align with industry and Oracle-recommended guidelines.

Topic 4

Design for Hybrid Networking Architectures: This section of the exam measures the skills of a Network Infrastructure Architect and assesses capabilities in designing hybrid networking environments. It involves demonstrating proficiency with Dynamic Routing Gateway (DRG) configurations, attachments, BGP routing protocols, VPN services, and evaluating FastConnect offerings. This section also emphasizes maintaining reliable multicloud connectivity and implementing IPSec over FastConnect, along with transitive routing practices.

Topic 5

Migrate Workloads to OCI: This section of the exam measures the skills of a Cloud Migration Specialist and focuses on identifying the best networking connectivity strategies when migrating workloads to Oracle Cloud. It includes scenarios involving on-premises infrastructure, other cloud providers, and multicloud environments, ensuring proper connectivity and minimal downtime during transitions.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q13-Q18):

NEW QUESTION # 13
When establishing cross-tenancy connectivity using Remote Peering Connections (RPCs), which IAM policy statement is essential to grant the requesting tenancy the ability to initiate the connection?

A. Allow group <group_name> to use remote-peering-connections in tenancy=<target_tenancy_OCID>
B. Allow group <group_name> to inspect virtual-network-family in tenancy=<target_tenancy_OCID>
C. Allow group <group_name> to manage virtual-network-family in tenancy=<target_tenancy_OCID>
D. Allow group <group_name> to read remote-peering-connections in tenancy=<target_tenancy_OCID>

Answer: A

Explanation:
* Objective:Grant requesting tenancy permission to initiate an RPC to the target tenancy.
* RPC Process:Requires the requesting tenancy to create and connect the RPC, which needs specific IAM permissions in the target tenancy.
* IAM Verbs:
* manage:Broad permissions, too permissive for RPC initiation.
* use:Allows creation and connection of RPCs, precise for this task.
* inspect:Read-only, insufficient for initiating connections.
* read:Read-only, insufficient for initiating connections.
* Evaluate Options:
* A:Too broad, includes unnecessary permissions; incorrect.
* B:Precise permission for RPC initiation; correct.
* C:Read-only, doesn't allow connection; incorrect.
* D:Read-only, doesn't allow connection; incorrect.
* Conclusion:"use remote-peering-connections" is the essential policy.
RPCs require specific IAM policies for cross-tenancy connectivity. The Oracle Networking Professional study guide states, "To initiate a Remote Peering Connection, the requesting tenancy needs an IAM policy with the 'use remote-peering-connections' verb targeting the acceptor tenancy's OCID" (OCI Networking Documentation, Section: Remote Peering Connections). This ensures controlled access for connection establishment.

NEW QUESTION # 14
Your application running on OCI Compute instances in a private subnet requires high availability and the ability to distribute incoming traffic across multiple instances. You need to ensure that the load balancer can handle both HTTP and HTTPS traffic and provides health checks to monitor the availability of your backend servers. Which OCI Load Balancer offering is the most suitable for this scenario, considering both functionality and cost-effectiveness for a production environment?

A. Flexible Load Balancer with only TCP listeners.
B. Flexible Load Balancer with HTTP and HTTPS listeners and health checks.
C. Network Load Balancer (NLB) with UDP listeners.
D. Network Load Balancer (NLB) with TCP listeners.

Answer: B

Explanation:
* Requirements: HA, HTTP/HTTPS support, health checks, cost-effectiveness.
* Option A: NLB with TCP is Layer 4, lacks HTTP/HTTPS features-incorrect.
* Option B: Flexible Load Balancer (Application LB) supports Layer 7 HTTP/HTTPS and health checks, ideal for production-correct.
* Option C: NLB with UDP is irrelevant for HTTP/HTTPS-incorrect.
* Option D: Flexible LB with TCP only limits Layer 7 features-incorrect.
* Conclusion: Option B meets all needs efficiently.
Oracle states:
* "The Application Load Balancer (Flexible LB) supports HTTP/HTTPS with health checks, suitable for production workloads."This supports Option B. Reference:Load Balancer Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Balance/Concepts/balanceoverview.htm).

NEW QUESTION # 15
When migrating workloads to OCI requiring consistent, high-bandwidth connections with minimal latency, and your on-premises data center has direct fiber connectivity, which OCI service is most suitable?

A. Internet Gateway
B. Dynamic Routing Gateway (DRG) with remote peering
C. Site-to-Site VPN
D. FastConnect Colocation with Oracle

Answer: D

Explanation:
* Requirements: High bandwidth, low latency, leveraging direct fiber connectivity.
* Option A: Site-to-Site VPN uses the public internet, lacking consistency and bandwidth-incorrect.
* Option B: Internet Gateway is for public access, not dedicated connections-incorrect.
* Option C: FastConnect Colocation uses direct fiber at Oracle locations, ensuring high bandwidth and minimal latency-correct.
* Option D: DRG with remote peering is for VCN-to-VCN connectivity, not optimized for on-premises fiber-incorrect (DRG is part of FastConnect but not the service itself).
* Conclusion: FastConnect Colocation is the most suitable.
Oracle states:
* "FastConnect Colocation with Oracle leverages direct fiber connections at Oracle facilities, providing consistent, high-bandwidth, and low-latency access to OCI."This supports Option C. Reference:
FastConnect Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks
/fastconnect.htm#colocation).

NEW QUESTION # 16
You are tasked with migrating a critical, latency-sensitive application from Azure to OCI. Due to compliance requirements, all data must be encrypted in transit. Which connectivity option provides the BEST combination of security and performance for this migration?

A. Utilize Azure ExpressRoute and OCI FastConnect through a colocation provider, then implement application-level encryption using TLS
B. Leverage Azure Data Factory to transfer data to OCI Object Storage via HTTPS
C. Employ Azure VPN Gateway in conjunction with an OCI Load Balancer with SSL termination for the incoming connections from Azure
D. Configure a Site-to-Site VPN between Azure's Virtual Network Gateway and OCI's Dynamic Routing Gateway (DRG), relying on the built-in IPSec encryption

Answer: A

Explanation:
* Requirements: Low latency, high security with encryption for migration.
* Option A: VPN with IPSec offers encryption but has higher latency over public internet-less optimal.
* Option B: ExpressRoute and FastConnect provide a private, low-latency link; TLS adds end-to-end encryption-correct and best combination.
* Option C: Data Factory with HTTPS is encrypted but slow and not real-time-incorrect.
* Option D: VPN with Load Balancer SSL termination breaks end-to-end encryption-incorrect.
* Conclusion: Option B balances performance and security.
Oracle notes:
* "For latency-sensitive migrations, use FastConnect with ExpressRoute via colocation, enhanced by TLS for secure, high-performance data transfer."This supports Option B. Reference:Multicloud Connectivity
- Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/multicloud.htm).

NEW QUESTION # 17
Your company is migrating several applications to OCI and requires a highly available and resilient VPN connection between your on-premises network and OCI. You need to ensure that if one VPN tunnel fails, traffic automatically fails over to a backup tunnel with minimal disruption. Which configuration would BEST achieve high availability and automatic failover for your OCI Site-to-Site VPN connection?

A. Configure a single VPN connection with a single tunnel and rely on the underlying OCI infrastructure for automatic failover.
B. Configure a single VPN connection with two tunnels, ensuring that both tunnels use different CPE IP addresses on the on-premises side.
C. Configure a single VPN connection with two tunnels using the same CPE IP address.
D. Configure two separate VPN connections, each with a single tunnel, pointing to different CPE IP addresses on the on-premises side. Advertise the same prefixes over both VPN connections using BGP.

Answer: B

Explanation:
* Understand the Requirement: The goal is high availability (HA) and automatic failover for a Site-to- Site VPN between an on-premises network and OCI with minimal disruption.
* Evaluate Option A: A single VPN connection with one tunnel lacks redundancy. If the tunnel fails, there's no failover mechanism, as OCI doesn't inherently provide automatic failover for a single tunnel.
This is a single point of failure.
* Evaluate Option B: A single VPN connection with two tunnels using different CPE IP addresses leverages OCI's IPSec VPN capabilities. OCI supports multiple tunnels per VPN connection, and using distinct CPE IPs (e.g., via different ISPs or devices) ensures that if one tunnel fails (due to ISP or CPE failure), the second tunnel remains active. OCI's Dynamic Routing Gateway (DRG) automatically reroutes traffic to the active tunnel using IKE and IPSec health checks.
* Evaluate Option C: Two separate VPN connections, each with one tunnel and different CPE IPs, also provide HA. Using BGP, routes are advertised redundantly. However, managing two VPN connections is more complex than a single connection with two tunnels, and BGP failover might introduce slight delays compared to IPSec tunnel failover.
* Evaluate Option D: Two tunnels with the same CPE IP address within one VPN connection don't provide true HA. If the CPE or its ISP fails, both tunnels fail, as they share a single point of failure.
* Conclusion: Option B is the simplest, most resilient configuration that ensures automatic failover with minimal disruption using OCI's native VPN capabilities.
OCI's Site-to-Site VPN supports multiple tunnels within a single IPSec connection for redundancy.
According to the Oracle Help Center:
* "You can configure multiple tunnels for a single IPSec connection to provide redundancy. OCI uses IKE (Internet Key Exchange) to monitor tunnel health and automatically fails over to an active tunnel if one becomes unavailable."
* "For maximum availability, use different CPE public IP addresses for each tunnel (e.g., different ISPs or devices)."This aligns with Option B, ensuring HA without the complexity of separate VPN connections or BGP. Reference:Site-to-Site VPN Overview - Oracle Help Center(docs.oracle.com/en-us
/iaas/Content/Network/Tasks/settingupIPSec.htm).

NEW QUESTION # 18
......

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