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Oracle 1z0-1124-25 Exam Syllabus Topics:

Topic	Details
Topic 1	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.
Topic 2	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 3	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.
Topic 4	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.

Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q65-Q70):

NEW QUESTION # 65
You are troubleshooting a network connectivity issue between a compute instance in a private subnet within your VCN and a service on the public internet using Cloud Shell. You suspect a problem with the network security group (NSG) rules associated with the instance's VNIC. Which Cloud Shell command and appropriate tool combination allows you to directly inspect the NSG configuration impacting the VNIC?

A. oci compute instance get --instance-id <instance_OCID> piped to jq '.vnics[].nic_id | oci network vnic get --vnic-id .' piped to jq '.network_security_group_ids[] | oci network network-security-group get -- nsg-id .'
B. oci compute instance get --instance-id <instance_OCID> piped to grep NetworkSecurityGroupIds
C. oci network vnic get --vnic-id <instance_VNIC_OCID> piped to awk '/network_security_group_ids/
{print $2}' | xargs oci network network-security-group get --nsg-id
D. oci network network-security-group get --nsg-id <NSG_OCID> piped to grep <instance_VNIC_OCID>

Answer: A

Explanation:
* Goal:Inspect NSG rules for a VNIC from Cloud Shell.
* Command Flow:
* Get instance # Extract VNIC # List NSGs # Get NSG details.
* Evaluate Options:
* A:Direct NSG fetch lacks VNIC linkage; incomplete.
* B:Full pipeline from instance to NSG details; precise and correct.
* C:Grep is too basic, misses structure; incorrect.
* D:Awk parsing is fragile, less reliable than jq; less optimal.
* Conclusion:Option B provides the most robust inspection.
CLI with jq ensures accurate NSG retrieval. The Oracle Networking Professional study guide notes, "To troubleshoot NSG rules, use the OCI CLI to fetch instance VNIC details and associated NSG configurations, piping through jq for structured output" (OCI Networking Documentation, Section: CLI Troubleshooting).
Option B follows this methodology.

NEW QUESTION # 66
When migrating workloads from another cloud provider to OCI, what is a key consideration when choosing a connectivity strategy to ensure optimal network performance?

A. Ignoring the geographical proximity of the cloud regions being interconnected
B. Only considering managed connectivity solutions to avoid the complexity of configuring VPNs or direct interconnects
C. Factoring in the bandwidth requirements of the applications being migrated and choosing a connection that can accommodate peak traffic loads
D. Prioritizing the lowest possible initial setup cost, even if it results in higher ongoing operational expenses

Answer: C

Explanation:
* Goal: Ensure optimal performance in connectivity strategy.
* Option A: Low setup cost may compromise performance-incorrect.
* Option B: Proximity affects latency; ignoring it harms performance-incorrect.
* Option C: Matching bandwidth to app needs ensures performance-correct.
* Option D: Limiting to managed solutions restricts options-incorrect.
* Conclusion: Option C is the key consideration.
Oracle advises:
* "Consider application bandwidth requirements and peak loads when selecting a connectivity strategy for optimal performance during migration."This supports Option C. Reference:Network Planning for Migration - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/migration.
htm#planning).

NEW QUESTION # 67
You are configuring a VCN with multiple subnets for a customer. The security team requires that all instances have IPv6 addresses. You configure the VCN with an IPv6 ULA CIDR block of fc00:1:1::/48 and create two private subnets. After launching instances in the two private subnets, you notice that they only have IPv4 addresses assigned. You have not manually configured any IPv6 addresses on the instances themselves. What steps are necessary to ensure the instances automatically receive IPv6 addresses?

A. Make sure the "Assign public IPv4 address" option is not selected during instance creation. This will force the instance to default to IPv6 allocation.
B. IPv6 address assignment is only supported on instances launched in public subnets.
C. No further steps are needed. Instances will automatically receive IPv6 addresses within the configured subnets upon launch.
D. Ensure that SLAAC (Stateless Address Autoconfiguration) is enabled on the operating system of the instances within the two subnets.

Answer: D

Explanation:
* Problem:Instances lack IPv6 addresses despite VCN IPv6 configuration.
* OCI IPv6 Behavior:IPv6 requires subnet enablement and OS support via SLAAC.
* Evaluate Options:
* A:Incorrect. OCI doesn't auto-assign IPv6 without OS configuration.
* B:Correct. SLAAC must be enabled on the instance OS for auto-assignment.
* C:Incorrect. IPv6 works in both public and private subnets.
* D:Incorrect. IPv4 and IPv6 assignments are independent.
* Conclusion:Enabling SLAAC on the OS ensures automatic IPv6 assignment.
IPv6 in OCI relies on SLAAC for automatic address assignment. The Oracle Networking Professional study guide states, "To enable IPv6 on instances, the VCN and subnet must have IPv6 CIDR blocks, and the instance OS must support SLAAC to automatically configure IPv6 addresses" (OCI Networking Documentation, Section: IPv6 Configuration). Without SLAAC, instances default to IPv4 only.

NEW QUESTION # 68
Your organization uses a combination of OCI and AWS. Applications in OCI frequently access services hosted in AWS. You are experiencing slow and inconsistent data transfer speeds when transferring large files between the two clouds. You have a Site-to-Site VPN, but are considering other options. Which option is NOT a valid design consideration for improving the data transfer performance between OCI and AWS?

A. Deploy a dedicated interconnect through a network service provider that specializes in connecting OCI and AWS.
B. Evaluate using a third-party WAN optimization solution.
C. Determine the pricing scheme used for all OCI compute resources so you can predict when you need to scale bandwidth.
D. Evaluate the distance between the OCI and AWS regions you are using.

Answer: C

Explanation:
* Objective: Improve OCI-AWS data transfer performance.
* Option A: Region distance affects latency-valid.
* Option B: Dedicated interconnect boosts bandwidth and stability-valid.
* Option C: Compute pricing doesn't influence inter-cloud bandwidth-invalid.
* Option D: WAN optimization can enhance transfer efficiency-valid.
* Conclusion: Option C is not a design consideration for performance.
Oracle notes:
* "To optimize OCI-AWS connectivity, consider region proximity, dedicated interconnects, or WAN optimization. Compute pricing is unrelated to network performance."This excludes Option C.
Reference:Hybrid Cloud Networking - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network
/Concepts/hybridcloud.htm).

NEW QUESTION # 69
You are designing an OCI networking architecture for a multi-tier application using Infrastructure as Code (IaC). The architecture includes an OKE cluster for the front-end, a set of Compute instances for the back- end, and an Autonomous Database. You want to ensure that all traffic between these components is encrypted. You are using Transport Layer Security (TLS) for end-to-end encryption but are concerned about the overhead of encrypting all traffic within the VCN. Which approach provides the MOST balanced approach to security and performance, minimizing the overhead of encryption while still protecting sensitive data?

A. Use Network Security Groups (NSGs) and Security Lists to control access between components but do not implement any additional encryption within the VCN.
B. Implement TLS encryption for traffic between the OKE cluster and the Compute instances and use Oracle Database Vault to encrypt data at rest and in transit for the Autonomous Database.
C. Implement mutual TLS (mTLS) for all traffic between the OKE cluster, the Compute instances, and the Autonomous Database.
D. Implement TLS encryption only between the OKE cluster and the load balancer. Rely on the inherent security of the OCI network for traffic within the VCN.

Answer: B

Explanation:
* Goal: Balance security and performance with encryption in a VCN.
* Option A: TLS only to the load balancer leaves internal traffic unencrypted, risking exposure- insufficient security.
* Option B: mTLS everywhere maximizes security but adds significant overhead (e.g., certificate management), impacting performance-overkill.
* Option C: NSGs/Security Lists control access but don't encrypt traffic-lacks protection for sensitive data.
* Option D: TLS between OKE and Compute secures app-tier communication. Oracle Database Vault ensures ADB traffic is encrypted efficiently, leveraging built-in features-balanced approach.
* Conclusion: Option D optimizes security and performance.
Oracle states:
* "Use TLS for application traffic between tiers. Autonomous Database with Database Vaultprovides encryption in transit and at rest, minimizing overhead."This supports Option D. Reference:Security in OCI Networking - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts
/securityoverview.htm).

NEW QUESTION # 70
......

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