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Oracle 1z0-1124-25 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

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 3

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 4

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 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.

Topic 6

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.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q83-Q88):

NEW QUESTION # 83
Your organization is migrating a legacy application to OCI. This application relies on a specific IP address for its external communication, and you need to maintain this IP address during the migration. Which OCI Load Balancer feature or configuration can help you achieve this while ensuring high availability for the application?

A. Using a private IP address for the load balancer and NAT Gateway for outbound traffic.
B. Deploying multiple Flexible Load Balancers with different public IP addresses and using DNS round- robin.
C. Configuring the Flexible Load Balancer with a reserved public IP address.
D. Utilizing the Network Load Balancer (NLB) with its inherent ability to preserve client IP addresses.

Answer: C

Explanation:
* Requirement Breakdown: Maintain a specific public IP for external communication with high availability (HA).
* Option A: Private IP with NAT Gateway is for outbound traffic from private subnets, not inbound public access. It doesn't support a fixed public IP for external clients.
* Option B: Network Load Balancer (NLB) preserves client IPs (source IP) but doesn't allow reserving a specific public IP. IPs are assigned dynamically, failing the requirement.
* Option C: Flexible Load Balancer (Application Load Balancer) supports reserving a public IP, ensuring the legacy IP is maintained. It also provides HA across Availability Domains (ADs).
* Option D: Multiple load balancers with DNS round-robin don't maintain a single IP-clients see different IPs, violating the requirement.
* Conclusion: Option C meets both the specific IP and HA needs efficiently.
Per Oracle documentation:
* "The Application Load Balancer (Flexible Load Balancer) allows you to reserve a public IP address, which can be associated with the load balancer for consistent external access."
* "It provides high availability by distributing traffic across multiple backend instances."This supports Option C. Reference:Load Balancer Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content
/Balance/Concepts/balanceoverview.htm).

NEW QUESTION # 84
You are designing a VCN in OCI to host a multi-tenant SaaS application. Each tenant requires a separate and isolated network segment for security and regulatory compliance. You are using a large CIDR block for the VCN. What is the most efficient procedural method for achieving network segmentation and isolation for each tenant, considering IP address utilization and ease of management?

A. Create a separate compartment for each tenant and place all network resources within the tenant's compartment. Use NSGs and routing rules for isolation.
B. Create a separate VCN for each tenant.
C. Create a separate virtual machine (VM) for each tenant and rely on host-based firewalls for isolation.
D. Create a separate private subnet for each tenant within the same VCN, utilizing Network Security Groups (NSGs) and routing rules to enforce isolation.

Answer: D

Explanation:
* Requirements:Isolated segments, efficient IP use, easy management.
* Options Analysis:
* A:Separate VCNs waste IPs, high overhead; inefficient.
* B:Subnets with NSGs optimize IP use, simplify control; correct.
* C:Compartments are for IAM, not network isolation; incorrect.
* D:VM firewalls are complex, less secure; unsuitable.
* Conclusion:Subnets with NSGs are most efficient.
Subnets and NSGs provide tenant isolation. The Oracle Networking Professional study guide states, "For multi-tenant applications, use separate private subnets within a VCN and enforce isolation with NSGs and routing rules, optimizing IP utilization and management" (OCI Networking Documentation, Section: VCN Design). This balances security and efficiency.

NEW QUESTION # 85
Which OCI service or feature enables the enforcement of granular, identity-based access controls for packet routing, crucial for implementing Zero Trust principles?

A. Service Gateway
B. Dynamic Routing Gateway (DRG)
C. Network Security Groups (NSGs)
D. Internet Gateway

Answer: C

Explanation:
* Zero Trust Principles:Require explicit, identity-based access controls at every network stage.
* Evaluate OCI Services:
* Internet Gateway:Enables public internet access, no identity-based control.
* Service Gateway:Provides private service access, no granular routing control.
* NSGs:Offer stateful, identity-based rules at the VNIC level.
* DRG:Facilitates routing, not identity-based access control.
* NSG Fit:NSGs allow rules based on VNIC identity, source/destination IP, and ports, aligning with Zero Trust.
* Conclusion:NSGs are the best fit for granular, identity-based routing control.
NSGs are pivotal for Zero Trust in OCI. The Oracle Networking Professional study guide states, "Network Security Groups provide granular, stateful security rules that can be applied to specific VNICs, enabling identity-based access controls essential for Zero Trust architectures" (OCI Networking Documentation, Section: Network Security Groups). Unlike security lists (subnet-level), NSGs offer instance-level precision.

NEW QUESTION # 86
Which of the following is a disadvantage of using a public internet-based VPN connection for migrating large datasets from another cloud provider to OCI?

A. The throughput of a VPN connection is limited by the available bandwidth and latency of the public internet
B. VPN connections cannot be automated using Infrastructure as Code (IaC) tools
C. VPN connections are not compatible with all OCI services
D. VPN connections are inherently less secure than dedicated private connections

Answer: A

Explanation:
* Objective: Identify a VPN disadvantage for large dataset migration.
* Option A: VPNs can be secure with IPSec; not inherently less secure-incorrect.
* Option B: VPNs are automatable with IaC (e.g., Terraform)-incorrect.
* Option C: Public internet limits VPN throughput due to bandwidth and latency variability-correct disadvantage.
* Option D: VPNs are compatible with OCI services-incorrect.
* Conclusion: Option C is the key disadvantage.
Oracle notes:
* "Public internet-based VPNs face throughput limitations due to bandwidth and latency variability, impacting large data migrations."This supports Option C. Reference:VPN Limitations - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/settingupIPSec.htm#limitations).

NEW QUESTION # 87
Your company is migrating its publicly accessible website to OCI. You want to ensure the highest level of security and prevent DNS spoofing or cache poisoning attacks. You've decided to implement DNSSEC.
Which of the following is the most important first step in enabling DNSSEC for your domain using OCI DNS?

A. Configure the OCI DNS resolver to validate all incoming DNS responses using DNSSEC.
B. Enable DNSSEC on the OCI DNS zone for your domain and obtain the Delegation Signer (DS) record from OCI DNS.
C. Create a Traffic Management Steering Policy with the "DNSSEC" option enabled.
D. Generate a Key Signing Key (KSK) and a Zone Signing Key (ZSK) using a third-party tool and upload them to OCI DNS.

Answer: B

Explanation:
* Objective:Enable DNSSEC to secure OCI DNS against spoofing.
* DNSSEC Process:Requires enabling on the zone, generating keys, and updating the registrar.
* Evaluate Options:
* A:Steering policies manage traffic, not DNSSEC; incorrect.
* B:OCI DNS auto-generates keys; manual upload unnecessary; incorrect.
* C:Enabling DNSSEC starts the process, provides DS record; correct first step.
* D:Resolver validation is client-side, not enabling DNSSEC; incorrect.
* Conclusion:Enabling DNSSEC on the zone is the critical first step.
DNSSEC setup begins at the zone level. The Oracle Networking Professional study guide states, "The first step to enable DNSSEC in OCI DNS is to activate it on the zone, which generates keys and provides a DS record to share with your registrar" (OCI Networking Documentation, Section: DNSSEC Configuration). This establishes the chain of trust.

NEW QUESTION # 88
......

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