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Oracle 1z0-1124-25 Exam Syllabus Topics:

Topic
Details

Topic 1

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.

Topic 2

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 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

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 (Q10-Q15):

NEW QUESTION # 10
You are implementing IPSec over FastConnect to connect to a third-party network that is also connected to OCI via FastConnect. Your company requires a high level of security and isolation between your network and the third-party's network. Which of the following is the MOST secure approach to ensure network isolation when implementing IPSec over FastConnect in this scenario?

A. Implement IPSec tunnels between your on-premises network and the third-party's on-premises network, bypassing OCI.
B. Use OCI Network Security Groups (NSGs) or security lists to strictly control traffic between your VCN and the third-party's VCN.
C. Utilize a third-party virtual firewall appliance deployed in OCI and configure IPSec tunnels through the firewall to both your on-premises network and the third-party's network.
D. Enable flow logs to monitor the traffic that is transmitted.

Answer: A

Explanation:
* Goal: Maximum security and isolation for IPSec over FastConnect.
* Option A: Direct IPSec between on-premises networks bypasses OCI, ensuring complete isolation- correct and most secure.
* Option B: NSGs/security lists control traffic but allow OCI traversal, less isolated-incorrect.
* Option C: Third-party firewall adds complexity and OCI dependency, reducing isolation-incorrect.
* Option D: Flow logs monitor, don't isolate-incorrect.
* Conclusion: Option A provides the highest isolation.
Oracle notes:
* "For maximum isolation with third-party networks, configure IPSec directly between on-premises endpoints, avoiding OCI traversal."This supports Option A. Reference:IPSec over FastConnect - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/settingupIPSec.
htm#fastconnect).

NEW QUESTION # 11
You're automating the creation of multiple VCNs across different OCI regions using Cloud Shell scripting.
Which authentication method within Cloud Shell is best suited to programmatically authenticate with OCI, ensuring both security and scalability for this automation task?

A. Leverage Instance Principals in conjunction with a dynamic group that includes your Cloud Shell session.
B. Using the default Cloud Shell user and configuring the OCI CLI with API keys in a shell script.
C. Using Resource Manager stack with Terraform to provision network resources including cross-region configurations, leveraging OCI Vault to handle the sensitive credentials used in Terraform scripts.
D. Creating a dedicated IAM user for automation, generating API keys, storing the keys securely in Cloud Shell's persistent storage, and using them in the scripts.

Answer: A

Explanation:
* Requirements:Secure, scalable authentication for Cloud Shell scripting.
* Methods:
* API Keys:Manual, less secure if stored.
* Instance Principals:Credential-less, dynamic.
* Terraform with Vault:Secure but complex for scripting.
* Evaluate Options:
* A:API keys in script are insecure; not scalable.
* B:Persistent storage risks exposure; less secure.
* C:Instance Principals use IAM, no credentials; best fit.
* D:Overkill for simple scripting, better for IaC; less suited.
* Conclusion:Instance Principals offer security and scalability.
Instance Principals simplify automation. The Oracle Networking Professional study guide states,"Instance Principals allow Cloud Shell to authenticate via dynamic groups without storing credentials, ideal for secure, scalable scripting" (OCI Networking Documentation, Section: Authentication in Cloud Shell). This avoids key management issues.

NEW QUESTION # 12
Your company is utilizing a multi-cloud architecture with applications running on both OCI and AWS. You have established a Site-to-Site VPN connection between OCI and AWS for secure communication. Over time, you observe that the VPN tunnel becomes unstable and frequently disconnects, particularly during peak hours.
You suspect this is due to increased network latency and packet loss. Which action is least likely to improve the stability and reliability of your OCI-AWS Site-to-Site VPN connection in this scenario?

A. Transition from a Site-to-Site VPN to a dedicated interconnect solution (e.g., FastConnect with a partner to AWS) for higher bandwidth and lower latency.
B. Increase the MTU (Maximum Transmission Unit) size on the VPN tunnel interfaces to reduce fragmentation.
C. Implement Quality of Service (QoS) on both the OCI and AWS VPN gateways to prioritize VPN traffic.
D. Adjust the IKE (Internet Key Exchange) and IPSec parameters, such as rekeying intervals and encryption algorithms, to optimize performance.

Answer: B

Explanation:
* Problem:VPN instability during peak hours due to latency and packet loss.
* Evaluate Actions:
* A:Optimizing IKE/IPSec reduces overhead; improves stability.
* B:QoS prioritizes VPN traffic; enhances reliability.
* C:Increasing MTU may worsen fragmentation if path MTU isn't matched; least effective.
* D:Dedicated interconnect eliminates internet issues; most effective.
* MTU Insight:Raising MTU without path MTU discovery risks more fragmentation, not less.
* Conclusion:Increasing MTU is least likely to help.
VPN stability requires addressing network conditions. The Oracle Networking Professional study guide notes,
"Adjusting IKE/IPSec parameters or using QoS can stabilize VPN tunnels, while increasing MTU without path MTU alignment may exacerbate fragmentation" (OCI Networking Documentation, Section: VPN Troubleshooting). Dedicated interconnects are ideal, but MTU adjustment is risky here.

NEW QUESTION # 13
You are designing a hybrid cloud solution where sensitive data must be transferred between your on-premises data center and an OCI VCN. You require a dedicated, private connection with guaranteed bandwidth and low latency. In addition to FastConnect, what additional product would you implement to achieve encryption of the traffic traversing the FastConnect link and to ensure data confidentiality?

A. Oracle Cloud Infrastructure Vault
B. MACsec
C. IPSec VPN
D. OCI Bastion

Answer: B

Explanation:
* Requirement Analysis: The solution needs a private, high-bandwidth, low-latency connection (provided by FastConnect) with encryption for data confidentiality.
* Option A (IPSec VPN): IPSec encrypts traffic at Layer 3 over public or private networks. While feasible over FastConnect, it's redundant since FastConnect is already private, adding unnecessary overhead and complexity.
* Option B (OCI Vault): Vault manages encryption keys and secrets but doesn't encrypt traffic itself- only supports application-level encryption, not link-level-incorrect.
* Option C (MACsec): MACsec (Media Access Control Security) provides Layer 2 encryption for Ethernet traffic, ideal for securing FastConnect's dedicated link directly between devices, ensuring confidentiality without higher-layer overhead-correct.
* Option D (OCI Bastion): Bastion secures remote access to VCN resources, not link encryption- incorrect.
* Conclusion: MACsec enhances FastConnect with efficient, link-level encryption, meeting all requirements.
Oracle documentation states:
* "MACsec provides Layer 2 encryption for FastConnect, securing Ethernet traffic between on-premises and OCI infrastructure. It's ideal for ensuring confidentiality over dedicated connections."This supports Option C as the best additional product. Reference:FastConnect Security Options - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/fastconnect.htm#security).

NEW QUESTION # 14
Which OCI service or feature is best suited for capturing and analyzing network traffic metadata to identify anomalies and troubleshoot connectivity issues between VCN resources?

A. Flow Logs
B. Route Tables
C. Service Gateway
D. Network Security Groups (NSGs)

Answer: A

Explanation:
* Goal: Capture and analyze traffic metadata for anomalies and troubleshooting.
* Option A: NSGs control traffic but don't capture metadata-incorrect.
* Option B: Flow Logs record detailed traffic metadata (e.g., IPs, ports), perfect for analysis-correct.
* Option C: Route Tables manage routing, not metadata-incorrect.
* Option D: Service Gateway enables service access, not traffic logging-incorrect.
* Conclusion: Flow Logs are best suited.
Oracle documentation confirms:
* "Flow Logs capture network traffic metadata within a VCN, enabling anomaly detection and connectivity troubleshooting."This supports Option B. Reference:Flow Logs Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/flowlogs.htm).

NEW QUESTION # 15
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