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1z0-1124-25 Valid Test Duration - Study 1z0-1124-25 Reference

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1z0-1124-25 Valid Test Duration - Study 1z0-1124-25 Reference

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Oracle 1z0-1124-25 Exam Syllabus Topics:
TopicDetails
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
  • 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 3
  • 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 4
  • 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 5
  • 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 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
  • 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.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q20-Q25):NEW QUESTION # 20
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 HTTP and HTTPS listeners and health checks.
  • B. Network Load Balancer (NLB) with TCP listeners.
  • C. Network Load Balancer (NLB) with UDP listeners.
  • D. Flexible Load Balancer with only TCP listeners.
Answer: A
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. Referenceoad Balancer Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Balance/Concepts/balanceoverview.htm).

NEW QUESTION # 21
Your company needs to connect an on-premises data center to an OCI Virtual Cloud Network (VCN) to extend their existing infrastructure to the cloud. The connection MUST be secure, reliable, and provide consistent, low-latency access to resources in both environments. Resources in the OCI VCN need access to the on-premises servers, and resources in the on-premises data center need to access the compute instances located in a private subnet within the OCI VCN. Which is the MOST appropriate architectural design for establishing connectivity in this hybrid cloud environment, considering the available endpoints and gateway options in OCI?
  • A. Implement a Site-to-Site VPN connection between the on-premises network and the OCI VCN, utilizing a Dynamic Routing Gateway (DRG) in OCI.
  • B. Establish a FastConnect connection between the on-premises network and the OCI VCN, utilizing a Dynamic Routing Gateway (DRG) in OCI.
  • C. Configure a public endpoint for each resource in the OCI VCN that needs to be accessed from the on- premises network.
  • D. Implement a FastConnect connection from the on-premises network to the OCI VCN utilizing a Dynamic Routing Gateway (DRG) in OCI and implement a Site-to-Site VPN connection as backup.
Answer: D
Explanation:
* Requirements: Secure, reliable, low-latency, bidirectional access with redundancy.
* Option A: VPN via DRG is secure but lacks low latency and redundancy-insufficient.
* Option B: FastConnect via DRG offers low latency and security but no redundancy-partial fit.
* Option C: Public endpoints are insecure and high-latency-incorrect.
* Option D: FastConnect for primary low-latency access, VPN as backup for redundancy-correct and most appropriate.
* Conclusion: Option D meets all criteria.
Oracle states:
* "FastConnect with DRG provides secure, low-latency hybrid connectivity. Add a Site-to-Site VPN for redundancy to ensure reliability."This supports Option D. Reference:Hybrid Cloud Connectivity - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/hybridcloud.htm).

NEW QUESTION # 22
When analyzing Flow Logs for a subnet, how can you filter logs to isolate traffic that was rejected due to a specific security list rule?
  • A. By filtering on the "direction" field with the value "EGRESS" and the "port" field with the rule port
  • B. By filtering on the "status" field with the value "DENIED" and the "securityRule" field with the rule name
  • C. By filtering on the "action" field with the value "REJECT" and the "securityListRule" field with the rule ID
  • D. By filtering on the "type" field with the value "SECURITY" and the "rule" field with the rule number
Answer: C
Explanation:
* Goal: Filter Flow Logs for traffic rejected by a specific security list rule.
* Option A: "action" = "REJECT" identifies rejected traffic; "securityListRule" with rule ID pinpoints the exact rule-correct.
* Option B: "status" and "securityRule" aren't standard Flow Log fields ("action" and "securityListRule" are)-incorrect.
* Option C: "direction" and "port" filter traffic but don't specify rejection or rule-incorrect.
* Option D: "type" and "rule" aren't valid Flow Log fields-incorrect.
* Conclusion: Option A is the precise filtering method.
Oracle states:
* "In Flow Logs, use the 'action' field ('REJECT') and 'securityListRule' field (rule ID) to filter traffic rejected by a specific security list rule."This validates Option A. Reference:Flow Logs Fields - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/flowlogs.htm#fields).

NEW QUESTION # 23
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, ensuring that both tunnels use different CPE IP addresses on the on-premises side.
  • 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 a single tunnel and rely on the underlying OCI infrastructure for automatic failover.
  • D. Configure a single VPN connection with two tunnels using the same CPE IP address.
Answer: A
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 # 24
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. Dynamic Routing Gateway (DRG) with remote peering
  • B. Internet Gateway
  • 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 # 25
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