1z0-1124-25考試心得|高通過率 - Fast2test

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Oracle 1z0-1124-25 考試大綱：

主題	簡介
主題 1	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.
主題 2	Migrate Workloads to OCI: This section of the exam measures the skills of a Cloud Migration Specialist and focuses on identifying the best networking connectivity strategies when migrating workloads to Oracle Cloud. It includes scenarios involving on-premises infrastructure, other cloud providers, and multicloud environments, ensuring proper connectivity and minimal downtime during transitions.
主題 3	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.
主題 4	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.
主題 5	Design and Deploy OCI Virtual Cloud Networks (VCN): This section of the exam measures the skills of a Cloud Network Engineer and covers the design and configuration of Virtual Cloud Networks in Oracle Cloud Infrastructure. It includes understanding VCN and subnet characteristics, implementing both IPv4 and IPv6 addressing, identifying the distinct roles of OCI gateways, and recognizing endpoint types and their application within networking architectures. Knowledge of Object Storage endpoints is also referenced.

最新的 Oracle Cloud 1z0-1124-25 免費考試真題 (Q69-Q74):

問題 #69
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. You can't use your own IPv6 address space in OCI. You must use OCI's provided ULA.
B. Ensure that there is an Internet Gateway (IGW) attached to the VCN with a default route (::/0) in your subnet route table.
C. Ensure that there is a Service Gateway attached to the VCN with a default route (::/0) in your subnet route table.
D. Ensure that there are IPv6 default routes (::/0) pointing to a NAT Gateway in your VCN route tables.

答案：B

解題說明：
* Problem: Instances with IPv6-only traffic can't ping external IPv6 addresses despite FastConnect and IPv6 prefixes.
* Option A: OCI supports Bring Your Own IP (BYOIP) for IPv6, including global unicast addresses, so this is incorrect.
* Option B: NAT Gateways are for IPv4 outbound traffic, not IPv6-irrelevant here.
* Option C: For IPv6-only instances to reach external IPv6 addresses (beyond FastConnect),an Internet Gateway (IGW) is required with a default route (::/0) in the subnet route table. This enables public IPv6 connectivity-correct.
* Option D: Service Gateway is for OCI services, not general IPv6 internet access-incorrect.
* Conclusion: Option C fixes the issue by enabling IPv6 internet access.
Oracle states:
* "To enable IPv6 traffic to the internet, attach an Internet Gateway to the VCN and add a route rule for ::
/0. OCI supports BYOIP for public IPv6 prefixes."This aligns with Option C. Reference:IPv6 in OCI - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/managingIPv6.htm).

問題 #70
You are tasked with setting up a secure connection from an OCI Compute instance running in a private subnet to a third-party API that is only accessible over the internet via a static public IP address. Your company policy prohibits exposing the compute instance directly to the internet. Which combination of VCN resources BEST facilitates this secure outbound connection to the third-party API?

A. A Service Gateway configured with a Service CIDR label that includes the third-party API's IP address.
B. A NAT Gateway and a security list allowing outbound traffic to the third-party API's IP address.
C. A Dynamic Routing Gateway (DRG) connected to a FastConnect circuit, with routes configured to direct traffic to the third-party API's IP address.
D. An Internet Gateway with a security list allowing outbound traffic to the third-party API's IP address.

答案：B

解題說明：
* Requirement: Secure outbound connection to a public API without exposing the instance.
* Option A: Internet Gateway allows inbound and outbound traffic, exposing the instance-violates policy.
* Option B: NAT Gateway enables outbound-only internet access from a private subnet. A security list restricts traffic to the API's IP, ensuring security-correct.
* Option C: Service Gateway is for OCI services, not third-party APIs-incorrect.
* Option D: DRG with FastConnect is for private connections (e.g., on-premises), not internet APIs- incorrect.
* Conclusion: Option B meets the policy and connectivity needs.
Oracle notes:
* "A NAT Gateway allows instances in a private subnet to initiate outbound internet traffic without receiving inbound connections. Use security lists to restrict destinations."This supports Option B.
Reference:NAT Gateway Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network
/Tasks/NATgateway.htm).

問題 #71
You are designing a VCN in OCI to host a multi-tenant SaaS application. Each tenant requires a separate and isolated network segment for security and regulatory compliance. You are using a large CIDR block for the VCN. What is the most efficient procedural method for achieving network segmentation and isolation for each tenant, considering IP address utilization and ease of management?

A. Create a separate VCN for each tenant.
B. Create a separate private subnet for each tenant within the same VCN, utilizing Network Security Groups (NSGs) and routing rules to enforce isolation.
C. Create a separate virtual machine (VM) for each tenant and rely on host-based firewalls for isolation.
D. Create a separate compartment for each tenant and place all network resources within the tenant's compartment. Use NSGs and routing rules for isolation.

答案：B

解題說明：
* Requirements:Isolated segments, efficient IP use, easy management.
* Options Analysis:
* A:Separate VCNs waste IPs, high overhead; inefficient.
* B:Subnets with NSGs optimize IP use, simplify control; correct.
* C:Compartments are for IAM, not network isolation; incorrect.
* D:VM firewalls are complex, less secure; unsuitable.
* Conclusion:Subnets with NSGs are most efficient.
Subnets and NSGs provide tenant isolation. The Oracle Networking Professional study guide states, "For multi-tenant applications, use separate private subnets within a VCN and enforce isolation with NSGs and routing rules, optimizing IP utilization and management" (OCI Networking Documentation, Section: VCN Design). This balances security and efficiency.

問題 #72
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. Manually renew the certificates through the OCI Console before their expiration date.
B. Use OCI Vault to store the certificates and manually renew them using the Vault API.
C. There is no automatic renewal feature in OCI Certificates; manual renewal is always required.
D. Enable "Automatic Renewal" option within the OCI Certificates service and ensure DNS validation is properly configured.

答案：D

解題說明：
* Goal:Automate certificate renewal in OCI Certificates.
* Feature Check:OCI Certificates supports automatic renewal.
* Evaluate Options:
* A:Manual renewal risks disruption; inefficient.
* B:Automatic Renewal with DNS validation automates process; best fit.
* C:Vault stores secrets, no renewal automation; incorrect.
* D:False; OCI Certificates has auto-renewal; incorrect.
* Conclusion:Automatic Renewal is the optimal feature.
OCI Certificates offers automated renewal. The Oracle Networking Professional study guide states, "Enable the 'Automatic Renewal' option in OCI Certificates and configure DNS validation to ensure certificates are renewed before expiration, preventing disruptions" (OCI Networking Documentation, Section: OCI Certificates). This leverages OCI's built-in automation.

問題 #73
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. Configure a Local Peering Gateway (LPG) for the subnet to route traffic to the on-premises network.
B. Create a custom route table for the subnet with a route rule pointing to the Dynamic Routing Gateway (DRG) and configure network security groups (NSGs) to limit traffic to the specified on-premises IP address range.
C. Modify the VCN's default security list to restrict traffic to the on-premises IP address range.
D. Configure an Internet Gateway for the subnet with a route rule to the on-premises network.

答案：B

解題說明：
* Goal: Restrict subnet traffic to a specific on-premises IP range via FastConnect.
* Option A: Internet Gateway is for public access, not FastConnect-incorrect.
* Option B: Default security list applies broadly, lacking granularity; NSGs are more effective-less optimal.
* Option C: Custom route table with DRG ensures FastConnect routing; NSGs provide precise, instance- level traffic restriction-correct.
* Option D: LPG is for same-region VCN peering, not on-premises-incorrect.
* Conclusion: Option C is the most effective method.
Oracle notes:
* "Use a custom route table with a DRG route rule for FastConnect traffic. NSGs offer granular control to restrict traffic to specific IP ranges."This supports Option C. Reference:FastConnect and NSG Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/fastconnect.htm & docs.oracle.com/en-us/iaas/Content/Network/Concepts/NSGs.htm).

問題 #74
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