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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

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

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 4

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.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q12-Q17):

NEW QUESTION # 12
You are troubleshooting a connectivity issue between two compute instances within the same VCN. Both instances are in different subnets. Instance A (IPv4: 10.0.1.10, IPv6: fc00:1:1::10) can ping its subnet gateway (10.0.1.1) and can ping the IPv6 address of Instance B (fc00:1:2::20), but cannot ping Instance B's IPv4 address (10.0.2.20). The security lists and network security groups (NSGs) are configured to allow all traffic between the subnets. The route table for Instance A's subnet has a rule to route all traffic destined to 10.0.2.0
/24 subnet to the VCN Local Peering Gateway. What is the most probable cause?

A. The "ping" utility is not supported on the IPv6 address.
B. The route table for Instance B's subnet is missing a rule to route traffic destined for 10.0.1.0/24 to the VCN Local Peering Gateway.
C. IPv6 traffic cannot be filtered by security lists or NSGs.
D. The VCN does not have IPv6 enabled.

Answer: B

Explanation:
* Analyze Connectivity Successes:Instance A can ping its subnet gateway (10.0.1.1), indicating that local subnet routing and security rules are functioning for IPv4. It can also ping Instance B's IPv6 address (fc00:1:2::20), confirming that IPv6 routing and security rules between subnets are operational.
* Identify the Failure:Instance A cannot ping Instance B's IPv4 address (10.0.2.20). Since security lists and NSGs allow all traffic, the issue is unlikely to be a security configuration problem.
* Examine Routing for Instance A:The route table for Instance A's subnet (10.0.1.0/24) has a rule directing traffic to 10.0.2.0/24 via the VCN Local Peering Gateway (LPG). In OCI, LPGs are used for intra-region VCN peering, but here, both instances are in the same VCN, so this rule is likely a misconfiguration or irrelevant unless peering is involved. However, the successful IPv6 ping suggests basic connectivity exists.
* Check Return Path from Instance B:For a ping to succeed, Instance B must send ICMP replies back to Instance A (10.0.1.10). Instance B's subnet (10.0.2.0/24) needs a route table entry to send traffic to
10.0.1.0/24. Without this, replies are dropped, causing the IPv4 ping to fail. The IPv6 success indicates that IPv6 routing is correctly configured both ways, possibly via SLAAC or default routes.
* Evaluate Options:
* A:Incorrect. IPv6 is enabled, as Instance A pings Instance B's IPv6 address.
* B:Correct. Missing route for 10.0.1.0/24 in Instance B's subnet prevents IPv4 replies.
* C:Incorrect. Security lists and NSGs can filter IPv6 traffic in OCI.
* D:Incorrect. Ping supports IPv6, as evidenced by the successful IPv6 ping.
The most probable cause is a missing route in Instance B's subnet route table. In OCI, each subnet has its own route table, and for instances in different subnets within the same VCN to communicate, both subnets must have appropriate routes. The successful IPv6 ping suggests that IPv6 routing is intact (likely due to default behavior or SLAAC), but IPv4 requires explicit routing. Per the Oracle Networking Professional study guide,
"Route tables must be configured to direct traffic to the appropriate next hop for inter-subnet communication within a VCN" (OCI Networking Documentation, Section: Virtual Cloud Networks).

NEW QUESTION # 13
You are designing an OCI architecture where a custom application running on a compute instance in a private subnet needs to securely access an Oracle Integration Cloud (OIC) instance. The security policy mandates that all communication remains within the OCI network and avoids traversing the public internet. Which type of endpoint provides the most secure and direct connectivity for this scenario?

A. Service Gateway Endpoint
B. Regional Endpoint
C. Public Endpoint
D. Private Endpoint

Answer: D

Explanation:
* Requirement:Private, secure access to OIC from a private subnet.
* Endpoint Types:
* Public:Internet-based; violates policy.
* Service Gateway:For OCI services like Object Storage, not OIC.
* Private:VCN-internal access to services; fits OIC.
* Regional:Ambiguous, not specific; incorrect.
* Evaluate Options:
* A:Public internet; incorrect.
* B:Wrong service target; incorrect.
* C:Private within VCN; correct.
* D:Undefined scope; incorrect.
* Conclusion:Private Endpoint ensures secure connectivity.
Private Endpoints secure OIC access. The Oracle Networking Professional study guide notes, "A Private Endpoint allows applications in a private subnet to access Oracle Integration Cloud (OIC) within the OCI network, avoiding public internet exposure" (OCI Networking Documentation, Section: Private Endpoints).
This meets the security policy directly.

NEW QUESTION # 14
When configuring inter-tenancy VCN peering, what is the purpose of the "peer ID" provided by the requesting tenancy to the accepting tenancy?

A. To define the security rules for the peering connection.
B. To specify the CIDR block of the requesting tenancy's VCN.
C. To authenticate the requesting tenancy's root user.
D. To uniquely identify the requesting tenancy's RPC.

Answer: D

Explanation:
* Context: Inter-tenancy VCN peering connects VCNs across different OCI tenancies using Remote Peering Connections (RPCs).
* Option A: Authentication of the root user is handled by IAM policies, not the peer ID, which is a technical identifier-incorrect.
* Option B: The peer ID is the OCID of the RPC created by the requesting tenancy. It uniquely identifies the RPC, allowing the accepting tenancy to target and establish the peering-correct.
* Option C: CIDR blocks are part of VCN configuration and shared separately, not via thepeer ID- incorrect.
* Option D: Security rules are defined by NSGs or security lists, not the peer ID-incorrect.
* Conclusion: The peer ID's purpose is to identify the requesting tenancy's RPC, making Option B the correct answer.
From Oracle's documentation:
* "For inter-tenancy peering, the requesting tenancy provides the OCID of its Remote Peering Connection (RPC), known as the peer ID, to the accepting tenancy. The accepting tenancy uses this ID to establish the peering."This confirms Option B. Reference:Remote VCN Peering Across Tenancies - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/remoteVCNpeering.htm#cross- tenancy).

NEW QUESTION # 15
You are tasked with migrating a critical, latency-sensitive application from Azure to OCI. Due to compliance requirements, all data must be encrypted in transit. Which connectivity option provides the BEST combination of security and performance for this migration?

A. Configure a Site-to-Site VPN between Azure's Virtual Network Gateway and OCI's Dynamic Routing Gateway (DRG), relying on the built-in IPSec encryption
B. Leverage Azure Data Factory to transfer data to OCI Object Storage via HTTPS
C. Employ Azure VPN Gateway in conjunction with an OCI Load Balancer with SSL termination for the incoming connections from Azure
D. Utilize Azure ExpressRoute and OCI FastConnect through a colocation provider, then implement application-level encryption using TLS

Answer: D

Explanation:
* Requirements: Low latency, high security with encryption for migration.
* Option A: VPN with IPSec offers encryption but has higher latency over public internet-less optimal.
* Option B: ExpressRoute and FastConnect provide a private, low-latency link; TLS adds end-to-end encryption-correct and best combination.
* Option C: Data Factory with HTTPS is encrypted but slow and not real-time-incorrect.
* Option D: VPN with Load Balancer SSL termination breaks end-to-end encryption-incorrect.
* Conclusion: Option B balances performance and security.
Oracle notes:
* "For latency-sensitive migrations, use FastConnect with ExpressRoute via colocation, enhanced by TLS for secure, high-performance data transfer."This supports Option B. Reference:Multicloud Connectivity
- Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/multicloud.htm).

NEW QUESTION # 16
You are responsible for maintaining the network connectivity between OCI and Azure using the OCI-Azure Interconnect. You need to perform planned maintenance on your on-premises network, which will temporarily disrupt the BGP (Border Gateway Protocol) sessions between your on-premises network and both OCI and Azure. You want to ensure that traffic between OCI and Azure continues to flow without interruption during the maintenance window. Which action is MOST important to take before starting the maintenance to ensure continuous connectivity between OCI and Azure?

A. Disable the BGP sessions on both OCI and Azure before starting the maintenance.
B. Increase the BGP keepalive timers on both OCI and Azure to prevent the sessions from timing out.
C. Configure static routes in OCI and Azure to directly route traffic between the VCNs/VNets without relying on BGP.
D. Notify Oracle and Microsoft support teams about the planned maintenance window.

Answer: C

Explanation:
* Goal: Ensure OCI-Azure traffic during BGP disruption.
* Option A: Static routes bypass BGP dependency, maintaining connectivity-correct.
* Option B: Disabling BGP stops routing-incorrect.
* Option C: Notification doesn't ensure connectivity-incorrect.
* Option D: Keepalive timers delay detection, not prevent disruption-incorrect.
* Conclusion: Option A is most critical.
Oracle notes:
* "For uninterrupted OCI-Azure Interconnect traffic during BGP maintenance, configure static routes between VCNs and VNets."This supports Option A. Reference:OCI-Azure Interconnect - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/ociazureinterconnect.htm).

NEW QUESTION # 17
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