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[General] Free PDF Quiz 2026 Oracle Valid 1z0-1124-25 Trustworthy Source

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【General】 Free PDF Quiz 2026 Oracle Valid 1z0-1124-25 Trustworthy Source

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Oracle 1z0-1124-25 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Transitive Routing: This section of the exam measures the skills of a Network Security Engineer and focuses on the interpretation and synthesis of transitive routing configurations. It includes understanding how DRG, Local Peering Gateways (LPG), and network appliances interact in a routed network and implementing those configurations effectively.
Topic 2
  • 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.
Topic 3
  • Troubleshoot OCI Networking and Connectivity Issues: This section of the exam measures the skills of a Cloud Operations Engineer and evaluates the ability to select appropriate OCI tools and services for troubleshooting network and connectivity problems. It also tests knowledge of using OCI logging services to diagnose and resolve configuration or performance issues effectively.
Topic 4
  • Design for Hybrid Networking Architectures: This section of the exam measures the skills of a Network Infrastructure Architect and assesses capabilities in designing hybrid networking environments. It involves demonstrating proficiency with Dynamic Routing Gateway (DRG) configurations, attachments, BGP routing protocols, VPN services, and evaluating FastConnect offerings. This section also emphasizes maintaining reliable multicloud connectivity and implementing IPSec over FastConnect, along with transitive routing practices.
Topic 5
  • 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.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q101-Q106):NEW QUESTION # 101
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. 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.
  • B. Immediately replace the self-signed certificates on all application servers with certificates issued by OCI Certificates, without any gradual rollout.
  • C. Import the self-signed certificates into OCI Certificates and continue using them until they expire.
  • D. Configure OCI WAF to bypass certificate validation for the legacy application.
Answer: A
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 # 102
You're automating the creation of multiple VCNs across different OCI regions using Cloud Shell scripting.
Which authentication method within Cloud Shell is best suited to programmatically authenticate with OCI, ensuring both security and scalability for this automation task?
  • A. Creating a dedicated IAM user for automation, generating API keys, storing the keys securely in Cloud Shell's persistent storage, and using them in the scripts.
  • B. Using the default Cloud Shell user and configuring the OCI CLI with API keys in a shell script.
  • C. Leverage Instance Principals in conjunction with a dynamic group that includes your Cloud Shell session.
  • D. Using Resource Manager stack with Terraform to provision network resources including cross-region configurations, leveraging OCI Vault to handle the sensitive credentials used in Terraform scripts.
Answer: C
Explanation:
* Requirements:Secure, scalable authentication for Cloud Shell scripting.
* Methods:
* API Keys:Manual, less secure if stored.
* Instance Principals:Credential-less, dynamic.
* Terraform with Vault:Secure but complex for scripting.
* Evaluate Options:
* A:API keys in script are insecure; not scalable.
* Bersistent storage risks exposure; less secure.
* C:Instance Principals use IAM, no credentials; best fit.
* D:Overkill for simple scripting, better for IaC; less suited.
* Conclusion:Instance Principals offer security and scalability.
Instance Principals simplify automation. The Oracle Networking Professional study guide states,"Instance Principals allow Cloud Shell to authenticate via dynamic groups without storing credentials, ideal for secure, scalable scripting" (OCI Networking Documentation, Section: Authentication in Cloud Shell). This avoids key management issues.

NEW QUESTION # 103
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 a Service Gateway attached to the VCN with a default route (::/0) in your subnet route table.
  • C. Ensure that there are IPv6 default routes (::/0) pointing to a NAT Gateway in your VCN route tables.
  • D. Ensure that there is an Internet Gateway (IGW) attached to the VCN with a default route (::/0) in your subnet route table.
Answer: D
Explanation:
* 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).

NEW QUESTION # 104
Your team is deploying a critical, highly available application that relies on accessing a MySQL Database Service instance within OCI. The application requires a stable and predictable endpoint for database connectivity, even during database failover events. Which endpoint configuration is most suitable to ensure seamless application connectivity in this high-availability scenario?
  • A. Using a DNS hostname that resolves to the floating private IP address of the active MySQL Database Service instance.
  • B. Using a Service Gateway to connect to the MySQL Database Service endpoint.
  • C. Using the private IP address of the primary MySQL Database Service instance directly.
  • D. Using the public IP address of the MySQL Database Service instance.
Answer: A
Explanation:
* Goal:Stable endpoint for MySQL DB with HA failover support.
* Endpoint Options:
* Public IP:Exposed, changes on failover; unsuitable.
* DNS with Floating IPersistent across failovers; ideal.
* Private IP:Tied to primary, fails on switch; incorrect.
* Service Gateway:For OCI services, not MySQL DB; incorrect.
* Evaluate Options:
* Aublic exposure, no HA; incorrect.
* B:Floating private IP with DNS ensures continuity; correct.
* C:Static IP breaks on failover; incorrect.
* D:Misaligned purpose; incorrect.
* ConclusionNS with floating IP is most suitable.
MySQL DB in OCI uses floating IPs for HA. The Oracle Networking Professional study guide explains, "A DNS hostname resolving to the floating private IP of the active MySQL Database Service instance ensures seamless connectivity during failover events" (OCI Networking Documentation, Section: MySQL Database Service HA). This provides predictability and stability.

NEW QUESTION # 105
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 group with the use permission on the virtual-network-family aggregate resource in the tenancy.
  • B. An IAM group with inspect permission on virtual-network-family in the target compartment.
  • C. An IAM user with the read permission on all virtual-network-family resources.
  • 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.
Answer: D
Explanation:
* Goal: Apply least privilege for Cloud Shell to run diagnostics (ping, traceroute, nc) within a VCN.
* Option A: Read permission on all virtual-network-family resources is too broad, granting unnecessary access beyond diagnostics-violates least privilege.
* Option B: Instance Principals use temporary credentials tied to the Cloud Shell instance, enhancing security. A dynamic group with "read" and "use" permissions on NSGs and VNICs allows inspecting configurations and running diagnostics (e.g., via VNICs), meeting the exact need-correct.
* Option C: Inspect permission only provides metadata access, insufficient for running diagnostics (e.g., no "use" for traffic)-incorrect.
* Option D: Use permission on virtual-network-family at tenancy level is overly permissive, granting access to all network resources-violates least privilege.
* Conclusion: Option B is the most restrictive and secure, aligning with least privilege.
Oracle states:
* "Instance Principals allow services like Cloud Shell to authenticate without static credentials. Policies with 'read' and 'use' on specific resources (e.g., network-security-groups, vnics) enable diagnostics while adhering to least privilege."This supports Option B. Reference:Instance Principals - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Identity/Tasks/instanceprincipals.htm).

NEW QUESTION # 106
......
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