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Oracle 1z0-1124-25 Exam Syllabus Topics:

Topic
Details

Topic 1

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.

Topic 2

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 3

Design and Deploy OCI Virtual Cloud Networks (VCN): This section of the exam measures the skills of a Cloud Network Engineer and covers the design and configuration of Virtual Cloud Networks in Oracle Cloud Infrastructure. It includes understanding VCN and subnet characteristics, implementing both IPv4 and IPv6 addressing, identifying the distinct roles of OCI gateways, and recognizing endpoint types and their application within networking architectures. Knowledge of Object Storage endpoints is also referenced.

Topic 4

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 5

Transitive Routing: This section of the exam measures the skills of a Network Security Engineer and focuses on the interpretation and synthesis of transitive routing configurations. It includes understanding how DRG, Local Peering Gateways (LPG), and network appliances interact in a routed network and implementing those configurations effectively.

Topic 6

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 7

Plan and Design OCI Networking Solutions and App Services: This section of the exam measures the skills of a Solutions Architect and focuses on planning comprehensive networking and application service strategies. It includes understanding IP management practices, choosing procedural steps for deployments, and evaluating OCI load balancers, DNS configurations, and traffic steering options. Basic familiarity with DNS Security Extensions (DNSsec) is acknowledged as a placeholder for future integration.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q12-Q17):

NEW QUESTION # 12
When migrating workloads requiring high availability and redundancy for on-premises connectivity to OCI, which approach is recommended?

A. Internet Gateway with multiple public IPs
B. Single FastConnect connection
C. Dual FastConnect connections with diverse paths
D. Site-to-Site VPN over a single internet connection

Answer: C

Explanation:
* Requirements: HA and redundancy for on-premises-to-OCI connectivity.
* Option A: Single FastConnect lacks redundancy-incorrect.
* Option B: Single VPN over internet has no redundancy and poor performance-incorrect.
* Option C: Dual FastConnect with diverse paths ensures HA and redundancy via separate routes- correct.
* Option D: Internet Gateway with public IPs isn't dedicated or redundant-incorrect.
* Conclusion: Option C is the recommended approach.
Oracle advises:
* "For high availability, use dual FastConnect connections with diverse paths to eliminate single points of failure in hybrid connectivity."This supports Option C. Reference:FastConnect High Availability - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/fastconnect.htm#ha).

NEW QUESTION # 13
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 two tunnels using the same CPE IP address.
B. 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.
C. Configure a single VPN connection with two tunnels, ensuring that both tunnels use different CPE IP addresses on the on-premises side.
D. Configure a single VPN connection with a single tunnel and rely on the underlying OCI infrastructure for automatic failover.

Answer: C

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 # 14
In a multi-tier application architecture with separate public and private subnets, where should an OCI Bastion host be placed to provide secure access to resources in the private subnets without exposing them to the internet?

A. In a dedicated public subnet specifically for Bastion hosts.
B. In a separate VCN peered with the application VCN.
C. Behind an Internet Gateway in the public subnet.
D. Directly in the private subnet.

Answer: A

Explanation:
* Purpose:Secure access to private subnet resources via Bastion.
* Placement Considerations:Must be internet-accessible yet isolated.
* Evaluate Options:
* A:Private subnet lacks internet access for Bastion; incorrect.
* B:Dedicated public subnet balances accessibility and isolation; correct.
* C:Separate VCN adds complexity, unnecessary; less optimal.
* D:Ambiguous phrasing, but implies exposure; less precise than B.
* Conclusion:Dedicated public subnet is the best placement.
OCI Bastion requires public access with security. The Oracle Networking Professional study guide notes,
"Place the Bastion host in a public subnet with a dedicated configuration to allow secure SSH access to private subnet resources without exposing them directly" (OCI Networking Documentation, Section: Bastion Host Placement). Option B ensures this balance.

NEW QUESTION # 15
When migrating workloads from AWS to OCI, which connectivity option generally offers the LOWEST latency and HIGHEST bandwidth for data transfer, assuming a direct, dedicated connection is financially viable?

A. Utilizing a third-party cloud exchange provider to create a private network interconnect between AWS Direct Connect and OCI FastConnect.
B. Employing AWS Transit Gateway to connect to a VPN Gateway on OCI via a public IP address.
C. Establishing an IPSec VPN tunnel over the public internet between the AWS Virtual Private Cloud (VPC) and the OCI Virtual Cloud Network (VCN).
D. Leveraging AWS Storage Gateway to replicate data to OCI Object Storage over the internet.

Answer: A

Explanation:
* Goal: Lowest latency, highest bandwidth for AWS-to-OCI migration.
* Option A: IPSec VPN over public internet has variable latency and limited bandwidth-incorrect.
* Option B: Third-party cloud exchange with Direct Connect and FastConnect offers a private, dedicated link, minimizing latency and maximizing bandwidth-correct.
* Option C: Storage Gateway over internet is slow and not dedicated-incorrect.
* Option D: Transit Gateway with VPN uses public internet, lacking performance-incorrect.
* Conclusion: Option B provides the best performance.
Oracle documentation notes:
* "A third-party cloud exchange provider can interconnect AWS Direct Connect and OCI FastConnect, delivering a private, high-bandwidth, low-latency connection."This validates Option B. Reference:
Multicloud Connectivity - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts
/multicloud.htm).

NEW QUESTION # 16
You are designing an OCI networking architecture for a multi-tier application using Infrastructure as Code (IaC). The architecture includes an OKE cluster for the front-end, a set of Compute instances for the back- end, and an Autonomous Database. You want to ensure that all traffic between these components is encrypted. You are using Transport Layer Security (TLS) for end-to-end encryption but are concerned about the overhead of encrypting all traffic within the VCN. Which approach provides the MOST balanced approach to security and performance, minimizing the overhead of encryption while still protecting sensitive data?

A. Implement TLS encryption for traffic between the OKE cluster and the Compute instances and use Oracle Database Vault to encrypt data at rest and in transit for the Autonomous Database.
B. Implement TLS encryption only between the OKE cluster and the load balancer. Rely on the inherent security of the OCI network for traffic within the VCN.
C. Use Network Security Groups (NSGs) and Security Lists to control access between components but do not implement any additional encryption within the VCN.
D. Implement mutual TLS (mTLS) for all traffic between the OKE cluster, the Compute instances, and the Autonomous Database.

Answer: A

Explanation:
* Goal: Balance security and performance with encryption in a VCN.
* Option A: TLS only to the load balancer leaves internal traffic unencrypted, risking exposure- insufficient security.
* Option B: mTLS everywhere maximizes security but adds significant overhead (e.g., certificate management), impacting performance-overkill.
* Option C: NSGs/Security Lists control access but don't encrypt traffic-lacks protection for sensitive data.
* Option D: TLS between OKE and Compute secures app-tier communication. Oracle Database Vault ensures ADB traffic is encrypted efficiently, leveraging built-in features-balanced approach.
* Conclusion: Option D optimizes security and performance.
Oracle states:
* "Use TLS for application traffic between tiers. Autonomous Database with Database Vaultprovides encryption in transit and at rest, minimizing overhead."This supports Option D. Reference:Security in OCI Networking - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts
/securityoverview.htm).

NEW QUESTION # 17
......

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