Free Oracle 1z0-1124-25 Practice Exam with Questions & Answers

Goal: Force spoke-to-spoke traffic via a network appliance in hub-and-spoke topology.

Option A: Static routes on DRG to appliance ensure transitive routing—correct.

Option B: Service Gateway is for OCI services—incorrect.

Option C: Internet Gateway is public, not hub-and-spoke—incorrect.

Option D: LPG bypasses the appliance—incorrect.

Conclusion: Option A is necessary.

Oracle notes:

"In a hub-and-spoke topology, configure DRG route tables with static routes to the network appliance’s private IP for transitive routing between spokes."This supports Option A. Reference:Hub-and-Spoke Topology - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/hubspoke.htm).

Requirement Analysis: Strict compliance mandates logging all user access to private resources in a multi-tier setup.

Option A Assessment: Dynamic port forwarding with no logging fails compliance, as it provides no audit trail.

Option B Assessment: Managed Bastion sessions in OCI offer detailed logging (e.g., session start/end times, user IDs), integrated with OCI Logging. This meets compliance needs with a managed, scalable solution.

Option C Assessment: SSH port forwarding with minimal logs doesn’t provide the detailed auditing required for strict compliance.

Option D Assessment: A jump server with manual logging is error-prone, lacks scalability, and isn’t a managed OCI service, making it less suitable.

Conclusion: Option B provides the most robust, compliance-ready solution with detailed logging.

From Oracle’s Bastion documentation:

"OCI Bastion provides managed SSH sessions with detailed logging capabilities, capturing user access details for audit and compliance. Enable session logging to record all activities."This supports Option B as the best choice. Reference:Bastion Service Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Bastion/Concepts/bastionoverview.htm).

Requirement: Private communication between VCNs in different OCI regions via DRG.

Option A: LPGs are for same-region VCN peering, not cross-region—incorrect.

Option B: Service Gateways are for OCI service access, not VCN-to-VCN routing—incorrect.

Option C: Attaching both VCNs to a single DRG (via Remote Peering Connections implicitly) and configuring route tables enables cross-region communication over OCI’s backbone. This is the standard approach.

Option D: Internet Gateways use public IPs, which is insecure and not private—incorrect.

Conclusion: Option C is the necessary configuration for DRG-based cross-region connectivity.

Oracle documentation confirms:

"To connect VCNs in different regions, attach each to a DRG using Remote Peering Connections (RPCs). Configure DRG route tables to route traffic between VCN CIDRs."Option C reflects this setup (RPCs are implied). Reference:VCN Peering Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/remoteVCNpeering.htm).

Context: Zero Trust assumes no trust, requiring strict isolation (micro-segmentation).

Option A: Bandwidth isn’t increased by segmentation—incorrect.

Option B: Segmentation may increase route tables for granularity, not reduce them—incorrect.

Option C: Micro-segmentation isolates workloads, limiting breach impact (blast radius)—core Zero Trust goal and correct.

Option D: Inter-region connectivity isn’t simplified by micro-segmentation—incorrect.

Conclusion: Option C aligns with Zero Trust principles.

Oracle notes:

"Micro-segmentation in OCI VCNs, using NSGs and security lists, limits the blast radius of breaches by isolating resources, a key Zero Trust principle."This supports Option C. Reference:Zero Trust in OCI - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/zerotrust.htm).

Goal:Prioritize application traffic over FastConnect for consistent performance.

Features:

VLAN Tagging:Segments traffic, no prioritization.

QoS:Prioritizes traffic based on rules.

BGP Communities:Route policy, not QoS.

Jumbo Frames:Increases MTU, not priority.

Evaluate Options:

A:No prioritization; incorrect.

B:QoS ensures priority; correct.

C:Routing control, not QoS; incorrect.

D:Throughput, not latency control; incorrect.

Conclusion:QoS is the right feature.

FastConnect QoS manages traffic priority. The Oracle Networking Professional study guide explains, "FastConnect Quality of Service (QoS) allows you to prioritize critical traffic over the circuit, ensuring consistent performance despite competing traffic" (OCI Networking Documentation, Section: FastConnect Features). This addresses latency variability effectively.

Requirement:Private access to Object Storage from a private subnet.

Components:

Internet Gateway:Public internet access; unsuitable.

NAT Gateway:Outbound internet; unsuitable.

Service Gateway:Private OCI service access; fits requirement.

Network Firewall:Security, not routing; incorrect.

Evaluate Options:

A:Public internet; violates policy.

B:Public internet; violates policy.

C:Keeps traffic in OCI network; correct.

D:Doesn’t enable access; incorrect.

Conclusion:Service Gateway ensures private access.

Service Gateway is designed for private OCI service access. The Oracle Networking Professional study guide explains, "A Service Gateway allows private subnet instances to access Object Storage without traversing the public internet, ensuring secure data transfer within OCI" (OCI Networking Documentation, Section: Service Gateway). This meets the security requirement.

Goal:Minimize downtime in blue/green deployment with ALB.

ALB Capabilities:Supports weighted routing for gradual traffic shifts.

Evaluate Options:

A:Immediate switch risks downtime if ‘green’ fails; less efficient.

B:Listener swap causes abrupt change; not optimal.

C:Gradual shift with weights ensures smooth transition; most efficient.

D:Forcing ‘blue’ unhealthy is disruptive and hacky; inefficient.

Conclusion:Weighted routing provides the smoothest transition.

ALB supports blue/green via routing rules. The Oracle Networking Professional study guide states, "Application Load Balancer’s routing rules allow weighted traffic distribution between backend sets, enabling blue/green deployments with minimal downtime" (OCI Networking Documentation,Section: Load Balancer Routing). This method ensures stability during updates.

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.

Identify the Goal: Troubleshoot efficiently to determine if stateful inspection is causing intermittent connectivity issues.

Option A Evaluation: Disabling stateful inspection globally removes all security checks, potentially restoring connectivity but disrupting the entire VCN’s security. This is inefficient and risky.

Option B Evaluation: Creating a bypass rule for the application server avoids inspection, which could confirm the issue but weakens security for that server. It’s a workaround, not a diagnostic step, and requires policy changes during troubleshooting.

Option C Evaluation: Reviewing firewall logs for denied traffic is targeted and non-disruptive. Logs show if stateful inspection is dropping packets (e.g., due to session timeouts or rule mismatches), directly identifying the cause without altering configurations.

Option D Evaluation: Recreating the firewall is highly disruptive, time-consuming, and doesn’t guarantee insight into the current issue. It’s not a troubleshooting step.

Conclusion: Option C is the most efficient, as it leverages logs for precise diagnosis without impacting operations.

Per Oracle’s Network Firewall documentation:

"Network Firewall logs provide detailed information about allowed and denied traffic, including source/destination IPs, ports, and protocols. Use logs to troubleshoot connectivity issues by identifying dropped packets due to stateful inspection or rule mismatches."

"Stateful inspection tracks connection states; misconfigurations can lead to dropped sessions."This confirms logs are the best tool for diagnosing stateful inspection issues. Reference:Network Firewall Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/NetworkFirewall/overview.htm).

Objective:Efficiently propagate on-premises route updates to multiple VCNs.

DRG Capabilities:Supports route distribution to attached VCNs.

Analyze Options:

A:Manual updates are inefficient and error-prone; unsuitable.

B:Centralized DRG with route distribution automates propagation; efficient.

C:Multiple DRGs add complexity and manual effort; inefficient.

D:Service Gateway is for OCI services, not route updates; incorrect.

Conclusion:Centralized DRG with route distribution is the most efficient method.

Route distribution in a DRG simplifies multi-region routing. The Oracle Networking Professional study guide notes, "Using a centralized DRG with route distribution enabled allows routes learned from on-premises networks to be automatically propagated to all attached VCNs, reducing management overhead" (OCI Networking Documentation, Section: DRG Route Distribution). This leverages OCI’s automation capabilities.