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Latest Oracle 1z0-1124-25 Questions - Get Essential Exam Knowledge [2025]

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Oracle 1z0-1124-25 Exam Syllabus Topics:

Topic
Details

Topic 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

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 6

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 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 (Q38-Q43):

NEW QUESTION # 38
You are setting up a FastConnect connection between your on-premises data center and OCI. You need to configure BGP to exchange routing information. You require OCI to always prefer the FastConnect path for traffic destined to your on-premises network, even if OCI learns about the same prefixes via the public internet. Which BGP attribute should you configure on the OCI side of the FastConnect connection to achieve this?

A. Decrease the AS Path length for routes learned via FastConnect.
B. Configure MED to a lower value for routes advertised via FastConnect.
C. Increase the Local Preference for routes learned via FastConnect.
D. Advertise a more specific (longer prefix length) route via FastConnect.

Answer: C

Explanation:
* Goal:Prefer FastConnect routes over public internet in OCI.
* BGP Attributes:
* Local Preference:Higher value prefers a path within an AS.
* AS Path:Shorter path preferred, but manipulated on sender side.
* Prefix Length:More specific wins, but not controllable here.
* MED:Influences inbound traffic, not OCI preference.
* Evaluate Options:
* A:Higher Local Preference ensures FastConnect priority; correct.
* B:AS Path is set by on-premises, not OCI; incorrect.
* C:Prefix specificity is on-premises controlled; incorrect.
* D:MED affects on-premises, not OCI; incorrect.
* Conclusion:Local Preference is the right attribute.
Local Preference controls route preference in BGP. The Oracle Networking Professional study guide states,
"To prioritize FastConnect routes in OCI, increase the Local Preference for routes learned via the FastConnect virtual circuit over other paths" (OCI Networking Documentation, Section: BGP Configuration). This ensures OCI prefers the private path.

NEW QUESTION # 39
You are designing a solution to implement IPSec encryption over a FastConnect circuit between your on- premises network and OCI. You are concerned about the overhead of IPSec impacting themaximum MTU (Maximum Transmission Unit) size that can be supported. What is the most important factor to consider when determining the MTU size for the IPSec tunnel interfaces in this scenario?

A. The available bandwidth of the FastConnect circuit. A larger MTU requires a higher bandwidth connection.
B. The smallest MTU supported by any device along the entire network path between your on-premises network and OCI, including the FastConnect provider's network.
C. The fragmentation settings on the DRG in OCI.
D. The MTU size of the underlying Ethernet frames used by the FastConnect circuit.

Answer: B

Explanation:
* Concern:IPSec overhead reduces effective MTU.
* MTU Impact:Must avoid fragmentation, which degrades performance.
* Evaluate Factors:
* A:Bandwidth doesn't dictate MTU; incorrect.
* B:Smallest MTU in path (path MTU) prevents fragmentation; most critical.
* C:Ethernet MTU is a factor but not the limiting one; incomplete.
* D:DRG fragmentation settings are secondary to path MTU; incorrect.
* Conclusion:Path MTU is the key determinant to avoid fragmentation.
IPSec reduces MTU due to headers. The Oracle Networking Professional study guide explains, "When configuring IPSec over FastConnect, the most important factor is the smallest MTU supported along the entire path to prevent fragmentation and ensure efficient traffic flow" (OCI Networking Documentation, Section:
IPSec over FastConnect). Path MTU discovery is critical.

NEW QUESTION # 40
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 using the same CPE IP address.
C. 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.
D. Configure a single VPN connection with two tunnels, ensuring that both tunnels use different CPE IP addresses on the on-premises side.

Answer: D

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 # 41
When configuring transitive routing through a network appliance in a hub-and-spoke VCN topology, which configuration is necessary to ensure that traffic from a spoke VCN to another spoke VCN passes through the network appliance?

A. Attaching the network appliance to a Service Gateway.
B. Implementing a Local Peering Gateway (LPG) between the spoke VCNs.
C. Using an Internet Gateway to route traffic between the spoke VCNs.
D. Configuring static routes on the DRG route table pointing to the network appliance's private IP address.

Answer: D

Explanation:
* Goal: Force spoke-to-spoke traffic via a network appliance in hub-and-spoke topology.
* Option A: Static routes on DRG to appliance ensure transitive routing-correct.
* Option B: Service Gateway is for OCI services-incorrect.
* Option C: Internet Gateway is public, not hub-and-spoke-incorrect.
* Option D: LPG bypasses the appliance-incorrect.
* Conclusion: Option A is necessary.
Oracle notes:
* "In a hub-and-spoke topology, configure DRG route tables with static routes to the network appliance's private IP for transitive routing between spokes."This supports Option A. Reference:Hub-and-Spoke Topology - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/hubspoke.htm).

NEW QUESTION # 42
Your company is migrating its on-premises data center to OCI. A critical security requirement is to maintain centralized logging and auditing of all network traffic traversing the OCI Network Firewall. You need to ensure that every session that passes through the firewall is logged and can be analyzed for security events.
Which OCI service should you configure in conjunction with the Network Firewall to achieve this centralized logging?

A. OCI Service Connector Hub with OCI Logging.
B. OCI Audit Service.
C. OCI Cloud Guard.
D. OCI Logging Analytics.

Answer: A

Explanation:
* Requirement:Centralized logging of Network Firewall traffic for analysis.
* OCI Services:
* Audit Service:Logs API calls, not network traffic.
* Logging Analytics:Analyzes logs but needs log ingestion.
* Service Connector Hub with Logging:Moves firewall logs to OCI Logging.
* Cloud Guard:Monitors security posture, not detailed logging.
* Evaluate Options:
* A:Audit Service is for API events; incorrect.
* B:Logging Analytics requires log source; incomplete.
* C:Service Connector Hub with Logging captures and stores firewall logs; best fit.
* D:Cloud Guard is for threat detection, not logging; incorrect.
* Conclusion:Service Connector Hub with OCI Logging meets the requirement.
OCI Network Firewall logs require integration with OCI Logging. The Oracle Networking Professional study guide states, "Service Connector Hub can be configured to transfer Network Firewall logs to OCI Logging for centralized storage and analysis, meeting auditing requirements" (OCI Networking Documentation, Section:
Network Firewall Logging). This ensures every session is logged and auditable.

NEW QUESTION # 43
......

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