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Oracle 1z0-1124-25 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	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 4	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 (Q40-Q45):

NEW QUESTION # 40
Your organization is deploying a critical database application on OCI. To ensure high availability, you have deployed the database instances across multiple availability domains (ADs) within asingle region. You need to distribute client connections to the database instances and ensure that the load balancer can handle long- lived TCP connections with minimal overhead. Session persistence is not required. Which OCI load balancing solution would you choose in this scenario to minimize latency and connection establishment overhead?

A. Application Load Balancer with HTTP health checks.
B. Application Load Balancer with TCP health checks.
C. Network Load Balancer with TCP health checks.
D. Flexible Load Balancer with HTTP health checks.

Answer: C

Explanation:
* Requirements:Low-latency, minimal overhead for TCP connections, no session persistence.
* Load Balancer Types:
* Application Load Balancer (ALB):Layer 7, higher overhead, suited for HTTP/HTTPS.
* Network Load Balancer (NLB):Layer 4, low overhead, ideal for TCP/UDP.
* Evaluate Options:
* A:ALB with HTTP checks is for HTTP traffic, adds overhead; unsuitable.
* B:NLB with TCP checks is optimized for TCP, low latency; best fit.
* C:ALB with TCP checks still has Layer 7 overhead; less efficient.
* D:"Flexible Load Balancer" isn't a specific OCI service; incorrect.
* Conclusion:NLB minimizes latency and overhead for TCP connections.
The Network Load Balancer is designed for high-performance TCP scenarios. The Oracle Networking Professional study guide states, "Network Load Balancer operates at Layer 4, providing low-latency, high- throughput load balancing for TCP/UDP traffic with minimal overhead, ideal for database connections" (OCI Networking Documentation, Section: Load Balancing). TCP health checks ensure instance availability without session persistence complexity.

NEW QUESTION # 41
You're designing a multi-region deployment of your application on OCI. You want to use OCI's global load balancing capabilities, but also require the WAF to protect against attacks close to the user. Which configuration provides the best balance between global load balancing and regional WAF protection?

A. Configure the WAF in front of the OCI GLB itself to inspect all traffic globally.
B. Use OCI Global Load Balancer (GLB) with a single regional WAF protecting the backend servers in one region.
C. Use OCI GLB to distribute traffic to regional Load Balancers, each fronted by a regional WAF.
D. Configure the OCI GLB to distribute traffic based on source IP address to specific regions, and enable WAF on the regional Load Balancer.

Answer: C

Explanation:
* Goal: Balance global load balancing with regional WAF protection near users.
* Option A: Single WAF in one region creates a bottleneck and increases latency-insufficient.
* Option B: GLB distributes globally to regional Load Balancers, each with a WAF, ensuringprotection close to users-correct.
* Option C: WAF before GLB centralizes protection, adding latency and a single failure point-incorrect.
* Option D: Source IP routing with regional WAFs is less optimal than GLB's health-based routing- less effective.
* Conclusion: Option B optimizes both goals.
Oracle states:
* "OCI GLB distributes traffic across regions. Pair with regional Load Balancers and WAFs for localized protection and optimal performance."This supports Option B. Reference:Global Load Balancer Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Balance/Concepts/globalbalance.
htm).

NEW QUESTION # 42
You are troubleshooting a network connectivity issue between a compute instance in a private subnet within your VCN and a service on the public internet using Cloud Shell. You suspect a problem with the network security group (NSG) rules associated with the instance's VNIC. Which Cloud Shell command and appropriate tool combination allows you to directly inspect the NSG configuration impacting the VNIC?

A. oci compute instance get --instance-id <instance_OCID> piped to grep NetworkSecurityGroupIds
B. oci network network-security-group get --nsg-id <NSG_OCID> piped to grep <instance_VNIC_OCID>
C. oci network vnic get --vnic-id <instance_VNIC_OCID> piped to awk '/network_security_group_ids/
{print $2}' | xargs oci network network-security-group get --nsg-id
D. oci compute instance get --instance-id <instance_OCID> piped to jq '.vnics[].nic_id | oci network vnic get --vnic-id .' piped to jq '.network_security_group_ids[] | oci network network-security-group get -- nsg-id .'

Answer: D

Explanation:
* Goal:Inspect NSG rules for a VNIC from Cloud Shell.
* Command Flow:
* Get instance # Extract VNIC # List NSGs # Get NSG details.
* Evaluate Options:
* A:Direct NSG fetch lacks VNIC linkage; incomplete.
* B:Full pipeline from instance to NSG details; precise and correct.
* C:Grep is too basic, misses structure; incorrect.
* D:Awk parsing is fragile, less reliable than jq; less optimal.
* Conclusion:Option B provides the most robust inspection.
CLI with jq ensures accurate NSG retrieval. The Oracle Networking Professional study guide notes, "To troubleshoot NSG rules, use the OCI CLI to fetch instance VNIC details and associated NSG configurations, piping through jq for structured output" (OCI Networking Documentation, Section: CLI Troubleshooting).
Option B follows this methodology.

NEW QUESTION # 43
You are designing a multi-tier application within an OCI Virtual Cloud Network (VCN). The application comprises a public-facing web tier in one subnet, an application tier in another, and a database tier in a third.
For security reasons, you want to ensure that only the application tier can initiate connections to the database tier. The web tier needs to be able to communicate with the application tier, but not directly with the database tier. You are using private IP addresses within your VCN. Which procedural step is MOST effective to achieve this network isolation?

A. Create a single Network Security Group (NSG) and associate it with all three subnets. Configure ingress and egress rules within the single NSG to restrict traffic accordingly.
B. Create separate security lists for each subnet and configure ingress and egress rules to restrict traffic accordingly. Configure the route table for the Web Tier subnet to route traffic destined for the Database Tier subnet through the Application Tier.
C. Create separate security lists for each subnet and configure ingress and egress rules to restrict traffic accordingly. Create appropriate route rules in each subnet's route table.
D. Create separate Network Security Groups (NSGs) for each tier and configure ingress and egress rules to restrict traffic accordingly. Configure the route table for the Web Tier subnet to route traffic destined for the Database Tier subnet through the Application Tier.

Answer: C

Explanation:
* Requirements: App tier only initiates to DB; web tier to app tier only.
* Option A: NSGs with forced routing through app tier adds complexity and latency-less effective.
* Option B: Single NSG lacks subnet-level isolation-incorrect.
* Option C: Separate security lists per subnet with ingress/egress rules enforce isolation; route tables ensure proper VCN routing-correct and effective.
* Option D: Security lists are good, but routing web-to-DB via app tier is unnecessary-incorrect.
* Conclusion: Option C achieves isolation efficiently.
Oracle states:
* "Use separate security lists per subnet with ingress/egress rules to isolate tiers. Route tables manage intra-VCN traffic without forced hops."This supports Option C. Reference:Security Lists Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/securitylists.htm).

NEW QUESTION # 44
Your security team has mandated that all traffic to Oracle Cloud Infrastructure Object Storage must be encrypted end-to-end and must not be routed over the public internet. You are designing asolution where compute instances within a private subnet will frequently upload and download data from Object Storage.
Which of the following options provides the most secure and compliant solution?

A. Configure a NAT Gateway for the instances and enable encryption in transit using HTTPS for all Object Storage API calls.
B. Configure a Private Endpoint to Object Storage and ensure all API calls to Object Storage are made over HTTPS.
C. Configure a Service Gateway to Object Storage and enable encryption at rest on the Object Storage bucket.
D. Configure a Service Gateway to Object Storage and ensure all API calls to Object Storage are made over HTTPS.

Answer: D

Explanation:
* Requirements:End-to-end encryption, no public internet for Object Storage access.
* Options Analysis:
* Service Gateway:Private access to Object Storage.
* NAT Gateway:Public internet access; unsuitable.
* Private Endpoint:Alternative private access, but newer feature.
* HTTPS:Ensures in-transit encryption.
* Evaluate Options:
* A:Encryption at rest doesn't cover transit; incomplete.
* B:NAT uses public internet; violates policy; incorrect.
* C:Service Gateway with HTTPS ensures full encryption and privacy; correct.
* D:Private Endpoint with HTTPS is valid but less common than Service Gateway; slightly less optimal historically.
* Conclusion:Service Gateway with HTTPS is most secure and compliant.
Service Gateway is standard for private Object Storage access. The Oracle Networking Professional study guide states, "A Service Gateway with HTTPS API calls ensures end-to-end encrypted traffic to Object Storage without public internet traversal" (OCI Networking Documentation, Section: Service Gateway). This meets security mandates effectively.

NEW QUESTION # 45
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