Get Feb-2026 updated Exam 1z0-1124-25 Dumps with New Questions [Q68-Q91]

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NEW QUESTION 68
Which OCI service or feature is best suited for capturing and analyzing network traffic metadata to identify anomalies and troubleshoot connectivity issues between VCN resources?

Network Security Groups (NSGs)

Flow Logs

Route Tables

Service Gateway

NEW QUESTION 69
You are designing a highly available web application on OCI. The application needs to be accessible globally with traffic being routed to the nearest region based on user location. Additionally, you need to implement sophisticated traffic management policies, such as A/B testing and weighted traffic distribution based on application version. You also require protection against DDoS attacks. Which OCI load balancing solution is best suited for these requirements?

Regional Load Balancer

Network Load Balancer

Global Load Balancer with Traffic Management Steering Policies

Flexible Load Balancer

NEW QUESTION 70
You are designing a microservices-based application on OCI. Each microservice is deployed as a container in Oracle Container Engine for Kubernetes (OKE). You want to expose these microservices through a single entry point using a Layer 7 load balancer and route traffic based on the request path. Which OCI load balancing integration method with OKE is the MOST appropriate and efficient?

Manually create a Regional Load Balancer and configure backend sets with the private IP addresses of the Kubernetes worker nodes hosting the microservices.

Deploy a Kubernetes LoadBalancer service, which automatically provisions an OCI Regional Load Balancer to distribute traffic to the microservice pods.

Deploy a Kubernetes NodePort service for each microservice and configure an OCI NetworkLoad Balancer to forward traffic to the NodePort services on the worker nodes.

Deploy a Kubernetes Ingress controller that leverages an OCI Regional Load Balancer to route traffic to the microservice pods based on Ingress rules.

NEW QUESTION 71
Which OCI service or feature enables the enforcement of granular, identity-based access controls for packet routing, crucial for implementing Zero Trust principles?

Internet Gateway

Service Gateway

Network Security Groups (NSGs)

Dynamic Routing Gateway (DRG)

NEW QUESTION 72
You have configured an IPSec VPN tunnel over your FastConnect circuit to OCI. You are experiencing intermittent connectivity issues and notice that the VPN tunnel is flapping (frequently going up and down).
You have verified the IKE and IPSec configuration and confirmed that the security policies are correct.
Which is a LESS likely cause of the VPN tunnel flapping when using IPSec over FastConnect, compared to using IPSec over the public internet?

Issues with network congestion or packet loss.

Mismatched pre-shared keys or incorrect IKE/IPSec parameters.

MTU (Maximum Transmission Unit) misconfiguration leading to fragmentation.

BGP route flapping or instability.

NEW QUESTION 73
You are designing a solution to implement IPSec encryption over a FastConnect circuit between your on- premises network and OCI. You are concerned about the overhead of IPSec impacting themaximum MTU (Maximum Transmission Unit) size that can be supported. What is the most important factor to consider when determining the MTU size for the IPSec tunnel interfaces in this scenario?

The available bandwidth of the FastConnect circuit. A larger MTU requires a higher bandwidth connection.

The smallest MTU supported by any device along the entire network path between your on-premises network and OCI, including the FastConnect provider’s network.

The MTU size of the underlying Ethernet frames used by the FastConnect circuit.

The fragmentation settings on the DRG in OCI.

NEW QUESTION 74
In a multi-region OCI environment, which configuration is necessary to allow communication between two VCNs located in different regions through a DRG?

Attaching an LPG to each VCN and configuring route tables to peer them directly.

Attaching a Service Gateway to each VCN and enabling transitive routing.

Attaching each VCN to the same DRG and configuring the appropriate route tables on the DRG.

Configuring Internet Gateways on each VCN and using public IP addresses for communication.

NEW QUESTION 75
A financial services company is implementing a multicloud strategy, storing sensitive customer data in OCI due to its enhanced security features, running analytics workloads in AWS, and utilizing a SaaS application hosted in Google Cloud Platform (GCP). To comply with stringent data sovereignty regulations, the company requires that all traffic between OCI and AWS must transit exclusively within the United States. Which is the MOST critical consideration when choosing a connectivity solution to ensure compliance?

Selecting a FastConnect partner who can guarantee that all OCI-AWS traffic will stay within the United States geographic boundary

Using the native OCI Dynamic Routing Gateway (DRG) and AWS Virtual Private Gateway (VGW) with IPSec VPNs, as this automatically ensures traffic stays within the specified region

Using a generic VPN tunnel between OCI and AWS, ensuring both gateways are located within US regions

Leveraging public internet-based connectivity with geographically restricted DNS resolution to limit traffic outside the US

NEW QUESTION 76
When establishing cross-tenancy connectivity using Remote Peering Connections (RPCs), which IAM policy statement is essential to grant the requesting tenancy the ability to initiate the connection?

Allow group <group_name> to manage virtual-network-family in tenancy=<target_tenancy_OCID>

Allow group <group_name> to use remote-peering-connections in tenancy=<target_tenancy_OCID>

Allow group <group_name> to inspect virtual-network-family in tenancy=<target_tenancy_OCID>

Allow group <group_name> to read remote-peering-connections in tenancy=<target_tenancy_OCID>

NEW QUESTION 77
You are designing an OCI VCN for a new application with the following requirements: The application servers in a private subnet must be able to download software updates from public repositories on the internet; the application servers must NOT be directly accessible from the public internet; the application servers must also be able to access Oracle Cloud Infrastructure Registry (OCIR) within the same region to pull container images. Which combination of VCN Gateways BEST meets these requirements?

Internet Gateway and Service Gateway

NAT Gateway and Internet Gateway

NAT Gateway and Service Gateway

Dynamic Routing Gateway (DRG) and Internet Gateway

NEW QUESTION 78
A development team has deployed a three-tier application in an OCI VCN. The application consists of a public-facing web tier, an application tier, and a database tier. The team reports that the web tier instances can communicate with the application tier instances, but the application tier instances cannot connect to the database tier instances. All security lists are configured to allow all traffic within the VCN. Which OCI Networking diagnostic tool would BEST help you quickly isolate the root cause of this connectivity issue?

VCN Flow Logs

Connection Diagnostics

Network Firewall

OCI Bastion

NEW QUESTION 79
You are troubleshooting a BGP peering issue between your on-premises router and an OCI FastConnect virtual circuit. You have verified the physical connectivity and confirmed that the BGP session is established.
However, routes are not being exchanged. You suspect a problem with the BGP configuration. What is the MOST LIKELY cause of this issue, assuming the basic BGP configuration (AS numbers, peer IP addresses) is correct?

The BGP keepalive timers are misconfigured, causing the session to drop intermittently.

There is a mismatch in the BGP authentication keys between the on-premises router and OCI.

The advertised prefixes are being filtered by a prefix list or route map on either the on-premises router or the OCI FastConnect virtual circuit.

The MTU (Maximum Transmission Unit) size is mismatched, causing fragmentation and packet loss.

NEW QUESTION 80
When configuring transitive routing through a network appliance in a hub-and-spoke VCN topology, which configuration is necessary to ensure that traffic from a spoke VCN to another spoke VCN passes through the network appliance?

Configuring static routes on the DRG route table pointing to the network appliance’s private IP address.

Attaching the network appliance to a Service Gateway.

Using an Internet Gateway to route traffic between the spoke VCNs.

Implementing a Local Peering Gateway (LPG) between the spoke VCNs.

NEW QUESTION 81
When migrating workloads from another cloud provider to OCI, what is a key consideration when choosing a connectivity strategy to ensure optimal network performance?

Prioritizing the lowest possible initial setup cost, even if it results in higher ongoing operational expenses

Ignoring the geographical proximity of the cloud regions being interconnected

Factoring in the bandwidth requirements of the applications being migrated and choosing a connection that can accommodate peak traffic loads

Only considering managed connectivity solutions to avoid the complexity of configuring VPNs or direct interconnects

NEW QUESTION 82
Your company is utilizing a multi-cloud architecture with applications running on both OCI and AWS. You have established a Site-to-Site VPN connection between OCI and AWS for secure communication. Over time, you observe that the VPN tunnel becomes unstable and frequently disconnects, particularly during peak hours.
You suspect this is due to increased network latency and packet loss. Which action is least likely to improve the stability and reliability of your OCI-AWS Site-to-Site VPN connection in this scenario?

Adjust the IKE (Internet Key Exchange) and IPSec parameters, such as rekeying intervals and encryption algorithms, to optimize performance.

Implement Quality of Service (QoS) on both the OCI and AWS VPN gateways to prioritize VPN traffic.

Increase the MTU (Maximum Transmission Unit) size on the VPN tunnel interfaces to reduce fragmentation.

Transition from a Site-to-Site VPN to a dedicated interconnect solution (e.g., FastConnect with a partner to AWS) for higher bandwidth and lower latency.

NEW QUESTION 83
When configuring transitive routing with a DRG across multiple VCNs and on-premises networks, which key configuration step ensures that traffic from one VCN is correctly routed through the DRG to an on-premises destination?

Configuring static routes on the DRG route table with the on-premises network CIDR and the corresponding VCN attachment.

Configuring dynamic routing protocol (e.g., BGP) on the DRG and the on-premises Customer Premises Equipment (CPE).

Attaching all VCNs to a single LPG and configuring route tables to direct traffic to the on-premises network.

Implementing a Service Gateway to facilitate direct communication between the VCNs and the on- premises network.

NEW QUESTION 84
Which OCI component facilitates transitive routing between VCNs in different regions via a dedicated, private network backbone, while also enabling connectivity to on-premises networks?

Local Peering Gateway (LPG)

Dynamic Routing Gateway (DRG)

Service Gateway

Internet Gateway

NEW QUESTION 85
You are designing an OCI networking architecture for a multi-tier application using Infrastructure as Code (IaC). The architecture includes an OKE cluster for the front-end, a set of Compute instances for the back- end, and an Autonomous Database. You want to ensure that all traffic between these components is encrypted. You are using Transport Layer Security (TLS) for end-to-end encryption but are concerned about the overhead of encrypting all traffic within the VCN. Which approach provides the MOST balanced approach to security and performance, minimizing the overhead of encryption while still protecting sensitive data?

Implement TLS encryption only between the OKE cluster and the load balancer. Rely on the inherent security of the OCI network for traffic within the VCN.

Implement mutual TLS (mTLS) for all traffic between the OKE cluster, the Compute instances, and the Autonomous Database.

Use Network Security Groups (NSGs) and Security Lists to control access between components but do not implement any additional encryption within the VCN.

Implement TLS encryption for traffic between the OKE cluster and the Compute instances and use Oracle Database Vault to encrypt data at rest and in transit for the Autonomous Database.

NEW QUESTION 86
In a multi-tier application architecture with separate public and private subnets, where should an OCI Bastion host be placed to provide secure access to resources in the private subnets without exposing them to the internet?

Directly in the private subnet.

In a dedicated public subnet specifically for Bastion hosts.

In a separate VCN peered with the application VCN.

Behind an Internet Gateway in the public subnet.

NEW QUESTION 87
Your company uses OCI Certificates to manage SSL/TLS certificates for its public-facing applications. You need to implement a solution that automatically renews these certificates before they expire to avoid service disruptions. Which OCI Certificates feature or configuration best achieves this?

Manually renew the certificates through the OCI Console before their expiration date.

Enable “Automatic Renewal” option within the OCI Certificates service and ensure DNS validation is properly configured.

Use OCI Vault to store the certificates and manually renew them using the Vault API.

There is no automatic renewal feature in OCI Certificates; manual renewal is always required.

NEW QUESTION 88
You have successfully enabled DNSSEC on your OCI DNS zone and provided the DS record to your domain registrar. However, when you test your DNS configuration using online DNSSEC validation tools, you are still seeing errors indicating that DNSSEC validation is failing. What is the most likely reason for this failure?

The Time To Live (TTL) value for your DNS records is too low, causing validation errors.

The domain registrar has not yet published the DS record in the parent zone, preventing the chain of trust from being established.

The OCI DNS resolver is not configured to validate DNSSEC signatures.

The DNSSEC algorithm used by OCI DNS is not supported by the validation tools.

NEW QUESTION 89
Which OCI service provides detailed logs for network traffic traversing a Network Load Balancer, offering insights into client connections and backend health checks?

Flow Logs

Service Logs

Load Balancer Logs

Audit Logs

NEW QUESTION 90
In the context of OCI’s Zero Trust Packet Routing, which principle emphasizes the necessity of explicitly defining and enforcing access controls at every stage of network communication?

Implicit Trust

Least Privilege

Perimeter Security

Network Segmentation

NEW QUESTION 91
You are using the OCI Application Load Balancer (ALB) for your web application. You want to implement a blue/green deployment strategy to minimize downtime during application updates. You have two backend sets: ‘blue’ (the current version) and ‘green’ (the new version). What is the most efficient way to switch traffic from the ‘blue’ backend set to the ‘green’ backend set using the ALB’s traffic management capabilities?

Update the listener to point directly to the ‘green’ backend set.

Create a new listener that points to the ‘green’ backend set and delete the old listener.

Use the ALB’s routing rules to gradually shift traffic from the ‘blue’ backend set to the ‘green’ backend set based on a percentage weight.

Update the health check policy of the ‘blue’ backend set to mark all servers as unhealthy, forcing the ALB to send traffic to the ‘green’ backend set.

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	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	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	OCI Networking Best Practices: This section of the exam measures the skills of a Cloud Solutions Architect and covers essential best practices for designing secure, efficient, and scalable networking solutions in OCI. It includes architectural design, connectivity setup, security hardening, and monitoring and logging standards that align with industry and Oracle-recommended guidelines.