1z0-1124-25最も有効な質問と解答で勉強

Oracle Cloud Infrastructure 2025 Networking Professionalは業界で広く認知された資格であり、取得はキャリアの信頼性を高める確かな一歩となります。Tech4Examの1z0-1124-25問題集は122問を収録し、公式の出題範囲に沿って学習を組み立てられます。

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1z0-1124-25に挑戦する方へ – よくある質問まとめ

Oracle Cloud Infrastructure 2025 Networking Professional 認定 1z0-1124-25 試験問題：

問題 #1

You are working as an OCI Network Specialist. Your company is migrating its on-premises IPv6 network to OCI. As part of the migration, you need to enable communication between the on-premises network and a VCN in OCI using FastConnect. Your company utilizes global unicast IPv6 addresses on-premises and wants to continue utilizing those addresses in OCI. However, you have a restriction that compute instance traffic must be limited to IPv6 only. After assigning IPv6 addresses from the prefix to the instance, they cannot ping external IPv6 addresses. What configuration most likely addresses this issue?

A. Ensure that there are IPv6 default routes (::/0) pointing to a NAT Gateway in your VCN route tables.
B. You can't use your own IPv6 address space in OCI. You must use OCI's provided ULA.
C. Ensure that there is an Internet Gateway (IGW) attached to the VCN with a default route (::/0) in your subnet route table.
D. Ensure that there is a Service Gateway attached to the VCN with a default route (::/0) in your subnet route table.

問題 #2

You're tasked with creating a network diagnostic tool using Cloud Shell to test connectivity to various endpoints from within your VCN. To enhance security, you want to ensure the tool only has the necessary permissions to perform network diagnostics (e.g., ping, traceroute, nc). Which IAM principle and associated action(s) provide the MOST restrictive, least-privilege access for Cloud Shell to perform network diagnostic tasks?

A. An IAM user with the read permission on all virtual-network-family resources.
B. An IAM group with the use permission on the virtual-network-family aggregate resource in the tenancy.
C. An IAM group with inspect permission on virtual-network-family in the target compartment.
D. Cloud Shell session using Instance Principals, belonging to a dynamic group with a policy allowing network-security-groups and vnics to be read and used.

問題 #3

Your company has a FastConnect circuit established between your on-premises data center and OCI.
However, you have a specific regulatory requirement to encrypt all traffic, even over dedicated connections like FastConnect. You need to implement IPSec encryption without significantly impacting the available bandwidth of your FastConnect circuit. Which is the most effective approach to implement IPSec encryption over your existing FastConnect circuit, while maintaining high bandwidth?

A. Configure a Site-to-Site VPN using the OCI Dynamic Routing Gateway (DRG) over theFastConnect virtual circuit. Use a low-overhead encryption algorithm like AES-GCM.
B. Deploy virtual firewall appliances within OCI and your on-premises network and configure IPSec tunnels between them, routing all traffic through the firewalls. Use a high-security encryption algorithm like AES-256.
C. Establish a second, separate Site-to-Site VPN connection to OCI over the public internet, and route all sensitive traffic over this VPN, while routing non-sensitive traffic over the FastConnect circuit.
D. Terminate IPSec VPN on compute instances in a public subnet on the OCI side.

問題 #4

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) 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).
B. 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).
C. 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.
D. 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.

問題 #5

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?

A. Enable "Automatic Renewal" option within the OCI Certificates service and ensure DNS validation is properly configured.
B. Manually renew the certificates through the OCI Console before their expiration date.
C. There is no automatic renewal feature in OCI Certificates; manual renewal is always required.
D. Use OCI Vault to store the certificates and manually renew them using the Vault API.

解説：