EXCELLENT ORACLE 1Z0-1124-25 EXAM QUIZ - 1Z0-1124-25 FREE DOWNLOAD

Excellent Oracle 1z0-1124-25 Exam Quiz - 1z0-1124-25 Free Download

Excellent Oracle 1z0-1124-25 Exam Quiz - 1z0-1124-25 Free Download

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q28-Q33):

NEW QUESTION # 28
Your company is migrating its legacy application to OCI. This application uses self-signed certificates. As part of the migration, you want to replace these with certificates issued by a trusted Certificate Authority (CA) managed through OCI Certificates. What is the most secure and recommended method to handle this transition?

  • A. Import the self-signed certificates into OCI Certificates and continue using them until they expire.
  • B. Configure OCI WAF to bypass certificate validation for the legacy application.
  • C. Obtain certificates from OCI Certificates, gradually replace self-signed certificates on application servers, and update the truststores on client systems to include the OCI Certificates CA.
  • D. Immediately replace the self-signed certificates on all application servers with certificates issued by OCI Certificates, without any gradual rollout.

Answer: C

Explanation:
* Objective: Securely transition from self-signed to trusted CA certificates.
* Option A: Importing self-signed certificates into OCI Certificates doesn't improve security-incorrect.
* Option B: Immediate replacement risks outages if clients don't trust the new CA-unrecommended.
* Option C: Gradual replacement with OCI Certificates, updating client truststores, ensures security and minimizes disruption-correct.
* Option D: Bypassing validation via WAF weakens security-incorrect.
* Conclusion: Option C is the most secure and recommended method.
Oracle advises:
* "Replace self-signed certificates with OCI Certificates from a trusted CA. Perform a phased rollout and update client truststores to avoid disruptions."This validates Option C. Reference:OCI Certificates Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Security/Certificates/overview.
htm).


NEW QUESTION # 29
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 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.
  • B. 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.
  • 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 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.

Answer: B

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 # 30
You are deploying a three-tier web application using Infrastructure as Code (IaC) and Oracle Kubernetes Engine (OKE) within a single VCN. The application consists of a public-facing web tier (running in OKE), an application tier, and a database tier. You want to ensure that only the web tier can access the application tier, and only the application tier can access the database tier. You are leveraging Network Security Groups (NSGs) for granular access control. Your IaC code successfully creates all the components, but you are experiencing connectivity issues. Specifically, Pods in the web tier cannot reach the application tier.
Reviewing your IaC configuration, you realize the NSG assignments for the OKE cluster's node pool are misconfigured. Which of the following NSG configuration errors would most likely cause this connectivity issue?

  • A. The NSG associated with the OKE node pool (web tier) allows ingress traffic from 0.0.0.0/0 on port 80, but egress traffic to the application tier's NSG is missing a rule allowing TCP traffic on port 8080 (the port the application tier is listening on).
  • B. The NSG associated with the application tier allows ingress traffic from the VCN CIDR, but the NSG associated with the OKE node pool (web tier) has no ingress rules at all. Therefore, the OKE nodes are not reachable.
  • C. The NSG associated with the OKE node pool (web tier) is missing an ingress rule allowing traffic from the VCN CIDR on port 443. This is causing a routing problem within the VCN.
  • D. The NSG associated with the OKE node pool (web tier) only allows egress traffic to the internet and does not have a rule permitting egress traffic to the application tier's NSG on the required port (8080).

Answer: D

Explanation:
* Problem:OKE web tier pods cannot reach the application tier.
* Traffic Flow:Web tier (OKE) initiates outbound (egress) traffic to application tier (port 8080).
* NSG Role:Controls traffic at VNIC level; must allow egress from OKE and ingress to app tier.
* Evaluate Options:
* A:Missing egress rule on OKE NSG blocks traffic; plausible but incomplete context.
* B:Ingress on OKE NSG affects incoming traffic, not outbound to app tier; incorrect.
* C:No ingress on OKE NSG doesn't block egress to app tier; incorrect.
* D:Egress limited to internet blocks app tier access (port 8080); most likely.
* Conclusion:Missing egress rule to app tier NSG is the primary issue.
NSGs require explicit egress rules for outbound traffic. The Oracle Networking Professional study guide notes, "For OKE pods to communicate with other tiers, the node pool's NSG must include egress rules to the destination NSG or CIDR on the required ports" (OCI Networking Documentation, Section: Network Security Groups with OKE). Option D reflects a common misconfiguration in IaC setups.


NEW QUESTION # 31
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. The throughput of a VPN connection is limited by the available bandwidth and latency of the public internet
  • C. VPN connections are not compatible with all OCI services
  • D. VPN connections are inherently less secure than dedicated private connections

Answer: B

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 # 32
Which OCI logging feature allows you to correlate network traffic patterns from Flow Logs with application- level events from Service Logs for comprehensive troubleshooting?

  • A. Log Streams
  • B. Log Groups
  • C. Log Analytics
  • D. Log Export

Answer: C

Explanation:
* Objective: Correlate Flow Logs and Service Logs for troubleshooting.
* Option A: Log Groups organize logs but don't analyze correlations-incorrect.
* Option B: Log Analytics enables querying and visualizing logs from multiple sources, ideal for correlation-correct.
* Option C: Log Streams collect logs but don't correlate-incorrect.
* Option D: Log Export moves logs, not analyzes them-incorrect.
* Conclusion: Log Analytics is the best feature.
Oracle documentation confirms:
* "Log Analytics allows you to correlate and analyze logs from Flow Logs and Service Logs, providing insights for troubleshooting."This validates Option B. Reference:Log Analytics Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Logging/Concepts/loganalytics.htm).


NEW QUESTION # 33
......

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