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Get All Oracle Cloud Infrastructure 2025 Networking Professional Exam Questions with Validated Answers
| Vendor: | Oracle |
|---|---|
| Exam Code: | 1Z0-1124-25 |
| Exam Name: | Oracle Cloud Infrastructure 2025 Networking Professional |
| Exam Questions: | 120 |
| Last Updated: | February 23, 2026 |
| Related Certifications: | Oracle Cloud , Oracle Cloud Infrastructure |
| Exam Tags: | Professional Level Oracle Cloud Network EngineersOracle Network Security Engineers |
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You have deployed a distributed application across OCI and Azure. You have established the OCI-Azure Interconnect. You are experiencing packet loss and performance degradation when transmitting large volumes of data between the two cloud providers. You have verified that the network devices on both sides are correctly configured. Which is NOT a typical root cause to investigate when troubleshooting performance issues across the OCI-Azure Interconnect?
Problem: Packet loss and degradation over OCI-Azure Interconnect.
Typical Causes: Security rules, routing, MTU mismatches.
Evaluate Options:
A: NSGs/Security Lists blocking traffic is a common issue; typical.
B: Routing misconfiguration can drop packets; typical.
C: Pricing tiers affect billing, not interconnect bandwidth; not typical.
D: MTU mismatches cause fragmentation and loss; typical.
Conclusion: Pricing tiers are unrelated to interconnect performance issues.
Interconnect performance issues stem from network configuration, not pricing. The Oracle Networking Professional study guide states, 'Troubleshooting multi-cloud interconnects involves checking security rules, routing, and MTU settings, as these directly impact traffic flow' (OCI Networking Documentation, Section: Multi-Cloud Connectivity). Pricing tiers influence resource limits, not interconnect bandwidth.
Your company needs to establish a secure connection between your on-premises network and OCI for a pilot project. The project has a limited budget and requires a quick setup, but also demands that the connection is encrypted. The long-term plan involves migrating to FastConnect, but that will take several months. Which OCI VPN solution would be most suitable for this short-term, budget-conscious, and security-aware scenario?
Requirements: Quick, cheap, encrypted VPN; interim before FastConnect.
VPN Options:
Static VPN: Simple, native, low cost.
Third-Party Appliance: Complex, costly.
Service Gateway: Not for VPN; incorrect.
BGP VPN: Dynamic, more setup; less quick.
Evaluate Options:
A: Static VPN is fast, secure, budget-friendly; correct.
B: Appliance adds cost and complexity; incorrect.
C: Misaligned use of Service Gateway; incorrect.
D: BGP is overkill for pilot; less efficient.
Conclusion: Static VPN via DRG is most suitable.
Static VPN is ideal for quick setups. The Oracle Networking Professional study guide notes, 'A Site-to-Site VPN with static routing via DRG provides a fast, encrypted connection for short-term needs, minimizing cost and setup time' (OCI Networking Documentation, Section: Site-to-Site VPN). This fits the pilot project perfectly.
You are designing a highly available application that requires low latency communication between OCI regions. You have two VCNs, VCN-A in Region 1 and VCN-B in Region 2. These VCNs have non-overlapping CIDR blocks and you want to establish a private, direct connection between them for optimal performance. Which of the following steps are necessary to establish this cross-region connectivity using the native OCI networking capabilities?
Requirements: Private, low-latency cross-region VCN connectivity.
Option A: RPCs with route table updates enable private, direct peering via DRG---correct.
Option B: IPSec VPN adds latency over internet---incorrect.
Option C: Service Gateways are for OCI services---incorrect.
Option D: NAT Gateways use public IPs, not private---incorrect.
Conclusion: Option A is necessary.
Oracle states:
'Use Remote Peering Connections (RPCs) with DRG to connect VCNs across regions privately. Update route tables for CIDR routing.'
This supports Option A. Reference: Remote VCN Peering - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/remoteVCNpeering.htm).
Your security policy mandates that all communication between your compute instances in a private subnet and OCI Object Storage must be authenticated and authorized using IAM policies and not rely on public IP addresses. Which OCI networking feature is the most appropriate to satisfy this requirement?
Requirement: Private, IAM-secured access to Object Storage.
Option A: Public subnet with Internet Gateway uses public IPs---violates policy.
Option B: NAT Gateway is for internet access, not private OCI services---incorrect.
Option C: Service Gateway enables private access to Object Storage, paired with IAM for auth---correct.
Option D: Public subnet with firewall still relies on public IPs---incorrect.
Conclusion: Option C meets all requirements.
Oracle states:
'Use a Service Gateway for private access to OCI Object Storage from a private subnet, with IAM policies for authentication and authorization.'
This supports Option C. Reference: Service Gateway Overview - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/servicegateway.htm).
Which OCI resource is used to establish private connectivity between two VCNs within the same region, facilitating direct, low-latency communication?
Objective: Identify the OCI resource for private, low-latency VCN-to-VCN connectivity in the same region.
Option A: DRG connects VCNs to external networks (e.g., on-premises) or across regions, not for same-region peering---incorrect.
Option B: LPG is designed for private peering of VCNs within the same region, ensuring low-latency communication---correct.
Option C: Internet Gateway provides public internet access, not private connectivity---incorrect.
Option D: Service Gateway connects VCNs to OCI services, not other VCNs---incorrect.
Conclusion: Option B is the appropriate resource.
Oracle documentation states:
'A Local Peering Gateway (LPG) enables private connectivity between two VCNs in the same region, providing direct, low-latency communication.'
This confirms Option B. Reference: Local VCN Peering Overview - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/localVCNpeering.htm).
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