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Your organization uses a combination of OCI and AWS. Applications in OCI frequently access services hosted in AWS. You are experiencing slow and inconsistent data transfer speeds when transferring large files between the two clouds. You have a Site-to-Site VPN, but are considering other options. Which option is NOT a valid design consideration for improving the data transfer performance between OCI and AWS?
You are designing a multicloud architecture where your customer wants to leverage OCI for its cost-effective compute and storage, while utilizing Microsoft Azure’s AI/ML services and AWS’s extensive serverless capabilities. The application requires low latency and high bandwidth between the clouds. Which of the following approaches provides the LEAST optimal solution for interconnecting these three cloud providers for production workloads?
In a complex multi-region OCI environment using DRGs for transitive routing, which method is most efficient for ensuring that route updates from on-premises networks are propagated to all connected VCNs?
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?
You are configuring a VCN with multiple subnets for a customer. The security team requires that all instances have IPv6 addresses. You configure the VCN with an IPv6 ULA CIDR block of fc00:1:1::/48 and create two private subnets. After launching instances in the two private subnets, you notice that they only have IPv4 addresses assigned. You have not manually configured any IPv6 addresses on the instances themselves. What steps are necessary to ensure the instances automatically receive IPv6 addresses?
When migrating workloads requiring high availability and redundancy for on-premises connectivity to OCI, which approach is recommended?
A company wants to leverage a best-of-breed approach for their application stack. They plan to use OCI for its Autonomous Database, Azure for its container orchestration (AKS), and AWS for its object storage (S3). Considering cost optimization and minimizing data egress charges, which strategy is the MOST efficient for transferring large datasets between these services?
You are a Network Engineer designing a hybrid cloud architecture for a large enterprise. The company requires secure and private connectivity between their on-premises network and their OCI VCN. They have sensitive data that cannot traverse the public internet. Which OCI VCN gateway is most appropriate for establishing this connection, ensuring end-to-end data encryption and isolation from the public internet?
You are setting up a Site-to-Site VPN connection between your on-premises network and OCI. You have generated the IKE pre-shared key and configured the VPN connection in OCI. You now need to configure your on-premises Customer Premises Equipment (CPE). Which information from the OCI console is ESSENTIAL for configuring your on-premises CPE to establish the VPN connection?
Which OCI service provides detailed logs for network traffic traversing a Network Load Balancer, offering insights into client connections and backend health checks?
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?
Consider a scenario where you have several private subnets within your VCN, and instances in these subnets need to access different OCI Object Storage buckets across various compartments. How can you efficiently manage and secure private access to Object Storage for all these subnets while adhering to the principle of least privilege?
Which OCI logging feature allows you to correlate network traffic patterns from Flow Logs with application-level events from Service Logs for comprehensive troubleshooting?
You are designing a multi-tier application in OCI, deploying the application tier in a public subnet and the database tier in a private subnet within the same VCN. The application tier requires access to specific external internet resources for software updates and third-party API calls. However, the database tier should not have direct internet access. Which of the following is the most secure and efficient method to achieve this configuration?
You are designing a hybrid cloud architecture connecting your on-premises network to OCI. You have established a Site-to-Site VPN between your on-premises network and an OCI DRG. You have two VCNs attached to the DRG: VCN-A (10.0.0.0/16) and VCN-B (10.1.0.0/16). You need to ensure that only VCN-A can communicate with the on-premises network (192.168.1.0/24), while VCN-B should remain isolated. What is the MOST effective and secure method to achieve this connectivity requirement using DRG route tables?
When setting up cross-tenancy VCN peering using Local Peering Gateways (LPGs), which IAM permission is required in the target tenancy to accept the peering request?
Your company is setting up a FastConnect connection with a provider. You have purchased a port from the provider, and they are requesting information to set up the connection to Oracle Cloud Infrastructure. They specifically require information to configure the VLANs. What information regarding VLAN configuration is ESSENTIAL for them to successfully establish the FastConnect circuit?
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?
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?
Your company needs to connect an on-premises data center to an OCI Virtual Cloud Network (VCN) to extend their existing infrastructure to the cloud. The connection MUST be secure, reliable, and provide consistent, low-latency access to resources in both environments. Resources in the OCI VCN need access to the on-premises servers, and resources in the on-premises data center need to access the compute instances located in a private subnet within the OCI VCN. Which is the MOST appropriate architectural design for establishing connectivity in this hybrid cloud environment, considering the available endpoints and gateway options in OCI?
Your company utilizes a hybrid cloud architecture, connecting its on-premises network to an OCIVCN using a FastConnect private peering connection. You need to ensure that instances within a specific subnet in the VCN can only communicate with resources in a designated IP address range within the on-premises network. What is the MOST effective way to achieve this specific network isolation?
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?
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?
As a network security engineer, you are tasked with designing a highly secure architecture for a financial application running on OCI. You have deployed a Network Firewall to protect the application’s VCN. Due to regulatory compliance requirements, you need to ensure that no direct internet access is allowed to any compute instance within the application’s private subnet, even if it is misconfigured. You need to block all outbound traffic to the internet. Which Network Firewall rule action best accomplishes this goal?
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?
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?
When migrating workloads to OCI requiring consistent, high-bandwidth connections with minimal latency, and your on-premises data center has direct fiber connectivity, which OCI service is most suitable?
You are designing a hybrid cloud solution where sensitive data must be transferred between your on-premises data center and an OCI VCN. You require a dedicated, private connection with guaranteed bandwidth and low latency. In addition to FastConnect, what additional product would you implement to achieve encryption of the traffic traversing the FastConnect link and to ensure data confidentiality?
You have deployed an application on OCI that uses a Regional Load Balancer with an HTTPS listener. You want to enforce end-to-end encryption and ensure that the connection between the load balancer and the backend servers is also encrypted. Which load balancer configuration step is MANDATORY to achieve this?
When applying Zero Trust principles to packet routing within OCI, what is the significance of using private endpoints instead of Service Gateways for accessing OCI services?
You are designing a backup solution in OCI. Compute instances in a private subnet need to back up data to OCI Object Storage. Security policy mandates that data transfer must not traverse the public internet. You need to choose the most secure and cost-effective method for accessing Object Storage. Which endpoint/gateway configuration should you implement?
TESTED 26 Apr 2025