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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q97-Q102):
NEW QUESTION # 97
In a Zero Trust network architecture, what is the primary purpose of implementing micro-segmentation within OCI VCNs?
- A. To reduce the number of required route tables.
- B. To increase network bandwidth.
- C. To simplify inter-region connectivity.
- D. To limit the blast radius of potential security breaches.
Answer: D
Explanation:
* 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).
NEW QUESTION # 98
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?
- A. Establish a FastConnect connection between the on-premises network and the OCI VCN, utilizing a Dynamic Routing Gateway (DRG) in OCI.
- B. Implement a FastConnect connection from the on-premises network to the OCI VCN utilizing a Dynamic Routing Gateway (DRG) in OCI and implement a Site-to-Site VPN connection as backup.
- C. Configure a public endpoint for each resource in the OCI VCN that needs to be accessed from the on- premises network.
- D. Implement a Site-to-Site VPN connection between the on-premises network and the OCI VCN, utilizing a Dynamic Routing Gateway (DRG) in OCI.
Answer: B
Explanation:
* Requirements: Secure, reliable, low-latency, bidirectional access with redundancy.
* Option A: VPN via DRG is secure but lacks low latency and redundancy-insufficient.
* Option B: FastConnect via DRG offers low latency and security but no redundancy-partial fit.
* Option C: Public endpoints are insecure and high-latency-incorrect.
* Option D: FastConnect for primary low-latency access, VPN as backup for redundancy-correct and most appropriate.
* Conclusion: Option D meets all criteria.
Oracle states:
* "FastConnect with DRG provides secure, low-latency hybrid connectivity. Add a Site-to-Site VPN for redundancy to ensure reliability."This supports Option D. Reference:Hybrid Cloud Connectivity - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/hybridcloud.htm).
NEW QUESTION # 99
Your organization is migrating a critical three-tier application to OCI. The application requires a highly available and performant database tier. You plan to use Oracle Autonomous Database on Dedicated Exadata Infrastructure. The Autonomous Database subnet must adhere to the organization's security policy, which mandates no direct internet access and private access to other VCN subnets. You need to ensure the proper IP address allocation and routing. Which of the following procedural steps is most effective for achieving this?
- A. Create a private subnet for the Autonomous Database and configure a Service Gateway with access to only Object Storage and Yum Server Oracle Services in OCI. Configure NSG rules allowing only traffic from the application's compute instances, and configure routing to a Dynamic Routing Gateway (DRG) for access to other VCN subnets.
- B. Create a public subnet for the Autonomous Database and configure a Service Gateway with access to all Oracle Services in OCI. Configure NSG rules allowing only traffic from the application's compute instances.
- C. Create a public subnet for the Autonomous Database, assign it a public IP address, and configure a Service Gateway with access to all Oracle Services in OCI. Configure routing to an Internet Gateway.
Secure access using Security Lists allowing traffic only from approved IP ranges.
- D. Create a private subnet for the Autonomous Database and configure a Service Gateway with access to Autonomous Database Oracle Services in OCI. Configure NSG rules allowing only traffic from the application's compute instances, and configure routing to a Dynamic Routing Gateway (DRG) for access to other VCN subnets. Reserve a large CIDR block for future database expansion.
Answer: D
Explanation:
* Requirements:Private subnet, no internet, access to other VCN subnets, HA database.
* Analyze Components:
* Public Subnet:Internet-exposed, against policy.
* Private Subnet:No internet, aligns with policy.
* Service Gateway:For OCI services, not ADB connectivity.
* DRG:For inter-VCN routing.
* NSGs:Granular traffic control.
* Evaluate Options:
* A:Public subnet violates no-internet policy; incorrect.
* B:Service Gateway for Object Storage/Yum irrelevant to ADB; incomplete.
* C:Private subnet, NSGs, DRG, and CIDR planning meet all needs; correct.
* D:Public subnet with internet access; violates policy.
* Conclusion:Option C is the most effective approach.
Autonomous Database requires private deployment for security. The Oracle Networking Professional study guide notes, "For Autonomous Database on Dedicated Exadata, use a private subnet with NSGs for access control and a DRG for inter-VCN connectivity, reserving CIDR for scalability" (OCI Networking Documentation, Section: Autonomous Database Networking). Service Gateway isn't used for ADB access, but the private setup ensures compliance.
NEW QUESTION # 100
Which of the following is a disadvantage of using a public internet-based VPN connection for migrating large datasets from another cloud provider to OCI?
- A. VPN connections cannot be automated using Infrastructure as Code (IaC) tools
- B. VPN connections are inherently less secure than dedicated private connections
- C. The throughput of a VPN connection is limited by the available bandwidth and latency of the public internet
- D. VPN connections are not compatible with all OCI services
Answer: C
Explanation:
* Objective: Identify a VPN disadvantage for large dataset migration.
* Option A: VPNs can be secure with IPSec; not inherently less secure-incorrect.
* Option B: VPNs are automatable with IaC (e.g., Terraform)-incorrect.
* Option C: Public internet limits VPN throughput due to bandwidth and latency variability-correct disadvantage.
* Option D: VPNs are compatible with OCI services-incorrect.
* Conclusion: Option C is the key disadvantage.
Oracle notes:
* "Public internet-based VPNs face throughput limitations due to bandwidth and latency variability, impacting large data migrations."This supports Option C. Reference:VPN Limitations - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/settingupIPSec.htm#limitations).
NEW QUESTION # 101
When migrating workloads from AWS to OCI, which connectivity option generally offers the LOWEST latency and HIGHEST bandwidth for data transfer, assuming a direct, dedicated connection is financially viable?
- A. Utilizing a third-party cloud exchange provider to create a private network interconnect between AWS Direct Connect and OCI FastConnect.
- B. Employing AWS Transit Gateway to connect to a VPN Gateway on OCI via a public IP address.
- C. Leveraging AWS Storage Gateway to replicate data to OCI Object Storage over the internet.
- D. Establishing an IPSec VPN tunnel over the public internet between the AWS Virtual Private Cloud (VPC) and the OCI Virtual Cloud Network (VCN).
Answer: A
Explanation:
* Goal: Lowest latency, highest bandwidth for AWS-to-OCI migration.
* Option A: IPSec VPN over public internet has variable latency and limited bandwidth-incorrect.
* Option B: Third-party cloud exchange with Direct Connect and FastConnect offers a private, dedicated link, minimizing latency and maximizing bandwidth-correct.
* Option C: Storage Gateway over internet is slow and not dedicated-incorrect.
* Option D: Transit Gateway with VPN uses public internet, lacking performance-incorrect.
* Conclusion: Option B provides the best performance.
Oracle documentation notes:
* "A third-party cloud exchange provider can interconnect AWS Direct Connect and OCI FastConnect, delivering a private, high-bandwidth, low-latency connection."This validates Option B. Reference:
Multicloud Connectivity - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts
/multicloud.htm).
NEW QUESTION # 102
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