UPDATED [2026] Pass Oracle 1Z0-1123-25 Exam in First Attempt Guaranteed
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Oracle 1Z0-1123-25 Exam Syllabus Topics:
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NEW QUESTION # 13
As a migrations architect, you are explaining the workflow of Oracle Cloud Migrations (OCM) service to a business partner. After the replication of virtual machine (VM) data to Oracle Cloud Infrastructure (OCI) using OCM, what is the next step to launch the migrated instance?
- A. Deploy a Resource Manager Stack to launch the Compute instance with the replicated Block Volume
- B. A Compute instance is automatically launched after the replication process
- C. Create a Compute instance with an attached Block Volume and configure the Hydration Agent to transfer the replicated data into the Block Volume
Answer: A
Explanation:
Deploying a Resource Manager Stack to launch the Compute instance with the replicated Block Volume is the correct next step after the replication of VM data to OCI using OCM.
NEW QUESTION # 14
You are working on a migration initiative as part of a cloud transformation project and leveraging Oracle Cloud Migrations service. Which is a valid use case for Oracle Cloud Migrations service?
- A. Migrate Virtual Machines from an on-premises environment to OCI Compute instances
- B. Migrate Virtual Machines from an on-premises environment to Oracle Cloud VMware Solution (OCVS)
- C. Migrate Compute instances between different OCI Regions
- D. Migrate Virtual Machines from an on-premises environment to containers in Oracle Container Engine for Kubernetes (OKE)
Answer: A
Explanation:
Migrating Virtual Machines from an on-premises environment to OCI Compute instances is a valid use case for Oracle Cloud Migrations service. This service allows for the seamless migration of Virtual Machines to Oracle Cloud Infrastructure Compute instances, enabling organizations to leverage the benefits of cloud infrastructure.
NEW QUESTION # 15
In Oracle Cloud Infrastructure (OCI), how are Security Lists different from Network Security Groups (NSGs) in terms of their functionality and application?
- A. NSGs are primarily used for inbound traffic control, while Security Lists are exclusively utilized for outbound traffic control within a subnet
- B. A Security List defines a set of security rules that applies to all the VNICs in a subnet whereas a Network Security Group lets you define a set of security rules that applies to a group of VNICs in a Virtual Cloud Network (VCN)
- C. Security Lists and NSGs are identical in functionality but differ only in naming conventions based on the OCI region where they are deployed
- D. Security Lists offer more advanced features such as intrusion detection and prevention, whereas NSGs focus solely on packet filtering and routing
Answer: B
Explanation:
A Security List in OCI defines a set of security rules that apply to all the Virtual Network Interface Cards (VNICs) within a subnet, while a Network Security Group (NSG) allows you to define a set of security rules that apply to a specific group of VNICs within a Virtual Cloud Network (VCN).
NEW QUESTION # 16
Which is NOT a valid connectivity model in Oracle Cloud Infrastructure (OCI) FastConnect?
- A. FastConnect: Direct-to-Cloud
- B. FastConnect: With an Oracle Partner
- C. FastConnect: Colocation with Oracle
- D. FastConnect: With a Third-Party Provider
Answer: A
Explanation:
FastConnect: Direct-to-Cloud is not a valid connectivity model in Oracle Cloud Infrastructure (OCI) FastConnect. This option does not align with the available methods for establishing connectivity through FastConnect.
NEW QUESTION # 17
How does containerization differ from virtualization in terms of resource optimization?
- A. Virtualization maximizes efficiency by running multiple applications on the same OS kernel
- B. Virtualization offers more flexibility in terms of application dependencies
- C. Containerization allows for more efficient utilization of hardware resources by sharing the host operating system
- D. Containers require a full operating system to run, whereas virtual machines share a single operating system
Answer: C
Explanation:
Containerization allows for more efficient utilization of hardware resources by sharing the host operating system. Containers only package the application and its dependencies, running on top of the host OS without the need for a separate guest OS.
NEW QUESTION # 18
You have set up cross-region replication for a block volume in the US West (Phoenix) region, choosing US West (San Jose) as the destination. Now, you want to create a new volume from the volume replica in the US West (San Jose) region. What should you do?
- A. No action required. By default, the replica is available as a block volume
- B. Trigger the replica
- C. Activate the replica
- D. Initialize the replica
Answer: C
Explanation:
Activating the replica is the correct action to take in order to make the volume replica usable as a block volume in the US West (San Jose) region. This step ensures that the replica is ready for use and can be attached to instances for storage purposes.
NEW QUESTION # 19
You are a migration architect responsible for managing data storage solutions in Oracle Cloud Infrastructure (OCI). You configured a Storage Gateway file system on a local host running in an on-premises datacenter, which maps to an Object Storage bucket with an identical name in OCI. What happens when a file is written to a Storage Gateway file system?
- A. The file is stored locally on the host machine
- B. The file is uploaded to OCI Object Storage synchronously
- C. The file is written as an object with the same name in the associated Object Storage bucket
- D. The file is replicated to multiple Object Storage buckets for redundancy
Answer: C
Explanation:
When a file is written to a Storage Gateway file system, it is written as an object with the same name in the associated Object Storage bucket in OCI. This allows for seamless integration and synchronization between the local file system and the cloud-based Object Storage.
NEW QUESTION # 20
Which two statements are true about physical migration of Oracle databases?
- A. You can run a cloud premigration advisor tool to perform compatibility check prior to migration
- B. You cannot filter and migrate database objects
- C. Source and Target database versions must be the same
- D. During physical migration, copies of database objects are created in dumps
- E. You cannot achieve zero or near-zero downtime with physical migration
Answer: A,C
Explanation:
Running the cloud premigration advisor tool is a recommended practice before migration to perform a compatibility check and identify any potential issues. Also, for physical migration, the source and target database versions must be the same to ensure compatibility.
NEW QUESTION # 21
Which two represent an Oracle database migration scenario?
- A. Enabling encryption on your database
- B. Upgrading the Oracle database from release 11g to 23c
- C. Changing the character set of the Oracle database
- D. Changing the Oracle database host platform from Windows to Linux
Answer: B,D
Explanation:
Changing the Oracle database host platform from Windows to Linux and upgrading from release 11g to 23c are typical migration scenarios.
NEW QUESTION # 22
You are setting up replication in the Oracle Cloud Infrastructure (OCI) File Storage service. What is a key requirement for the target file system?
- A. Only a file system that has been exported can be used as a target file system
- B. It must not have been previously exported
- C. It must be located in a different region than the source file system
- D. It must be located in the same availability domain as the source file system
Answer: B
Explanation:
The target file system must not have been previously exported in order to be used for replication. This ensures that the target file system is clean and ready to receive replicated data without any existing configurations.
NEW QUESTION # 23
Your company is looking to migrate its IT infrastructure into Oracle Cloud VMware Solution (OCVS). The source infrastructure includes a variety of workloads, such as a few business-critical VMs that require continuous availability, and a large set of non-critical dev-test VMs. As a migration cloud architect, you are exploring Hybrid Cloud Extension (HCX) migration methods to identify the best approaches for each type of workload. Which HCX migration method would be the most appropriate to use in order to migrate both business-critical VMs and dev-test VMs?
- A. HCX Bulk Migration for migrating business-critical VMs and HCX vMotion for non-critical dev-test VMs
- B. HCX Bulk Migration for migrating the business-critical VMs, and Cold Migrations for non-critical dev-test VMs
- C. Cold Migration for migrating both business-critical and non-critical dev-test VMs
- D. HCX vMotion for migrating business-critical VMs, and Cold Migrations for non-critical dev-test VMs
Answer: D
Explanation:
HCX vMotion is the most appropriate method for migrating business-critical VMs as it allows live migration without downtime, ensuring continuous availability. Cold Migrations can be used for non-critical dev-test VMs since downtime is acceptable for these workloads.
NEW QUESTION # 24
During which phase of migration to Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE), do you focus on tasks such as configuring Identity and Access Management (IAM), setting up billing, establishing network connectivity, and hardening the security of OKE clusters?
- A. Planning and establishing a foundation
- B. Evaluating and identifying workloads
- C. Optimizing the environment
- D. Implementing workloads
Answer: A
Explanation:
Planning and establishing a foundation is the phase where tasks such as configuring IAM, setting up billing, establishing network connectivity, and hardening the security of OKE clusters are performed. This phase lays the groundwork for the successful migration of workloads to OKE by ensuring the necessary infrastructure and security measures are in place.
NEW QUESTION # 25
Which two can help you perform logical online migration to Oracle Autonomous Database?
- A. OCI Database Migration
- B. Oracle Golden Gate
- C. Oracle SQL Developer
- D. Oracle Enterprise Manager Migration Workbench
Answer: B,C
Explanation:
Oracle Golden Gate and Oracle SQL Developer can assist with logical online migration to Oracle Autonomous Database. Golden Gate provides real-time data replication, while SQL Developer offers schema and data migration capabilities.
NEW QUESTION # 26
You plan to use Oracle Zero Downtime Migration to perform offline or online migration of Oracle databases, where the migration method type may be Physical or Logical. Which three migration methods does Oracle Zero Downtime Migration provide?
- A. Unplug and Plug Database
- B. Data Pump
- C. Data Guard
- D. Remote Cloning
- E. OCI Golden Gate
Answer: A,B,C
Explanation:
Data Pump, Unplug and Plug Database, and Data Guard are all valid migration methods provided by Oracle Zero Downtime Migration, which allows for the migration of Oracle databases with minimal downtime.
NEW QUESTION # 27
Your corporate policy does not allow storing customer data outside of your organization. As part of a consolidation drive, you plan to migrate some of your critical Oracle databases to Oracle Autonomous Database. Which deployment option would you choose?
- A. Autonomous Database on dedicated Exadata infrastructure
- B. Exadata Database - Dedicated on Cloud@Customer
- C. Autonomous Database on Cloud@Customer
- D. Exadata Database on Cloud@Customer
Answer: C
Explanation:
Autonomous Database on Cloud@Customer is the correct option because it allows you to host Oracle Autonomous Database within your organization's data center, meeting the corporate policy requirements.
NEW QUESTION # 28
Which is NOT a benefit of using Hybrid Cloud Extension (HCX) for migrating Virtual Machines (VMs) to Oracle Cloud VMware Solution (OCVS)?
- A. With HCX, the migrated VMs can retain their original IP addresses
- B. HCX facilitates the migration of VMs from non-VMware environments, such as KVM or Hyper-V
- C. HCX utilizes WAN optimization to accelerate migration traffic, making the migration process faster and more efficient
- D. HCX upgrades the source environment to the latest vSphere version prior to migrating VMs
Answer: D
Explanation:
HCX does not upgrade the source environment to the latest vSphere version prior to migrating VMs. It focuses on simplifying and accelerating the migration process without requiring upgrades to the source environment.
NEW QUESTION # 29
Your organization is in the stage of planning a migration of on-premises workloads to Oracle Cloud Infrastructure (OCI) using Oracle Cloud Migrations (OCM). As a migration architect, you are setting up the service to discover workloads. The initial step in this process involves the creation of Asset Source. Which statement accurately describes Asset Source?
- A. Is a remote virtual appliance deployed in the on-premises environment for discovery purposes
- B. Consists of credentials and connectivity details required by OCM to access and communicate with the on-premises environment
- C. Represents a repository within OCI where migrated assets are temporarily stored before being deployed into their final configuration
- D. Provides real-time cost analysis and optimization recommendations for assets during the migration planning phase
Answer: B
Explanation:
Asset Source in OCM consists of the necessary credentials and connectivity details that allow OCM to access and communicate with the on-premises environment. This information is crucial for OCM to discover and assess the workloads that need to be migrated to OCI.
NEW QUESTION # 30
Your company is planning to migrate on-premises workloads to Oracle Cloud Infrastructure (OCI). As a migration cloud architect, you are considering Oracle Cloud Migrations service for this initiative. Which two are core features of Oracle Cloud Migrations service?
- A. Group and organize discovered workloads to represent applications & lines of business
- B. Transfer large volumes of data through a storage appliance
- C. Estimate the cost to run the migrated workloads in the OCI environment
- D. Provide detailed application topology to choose the target OCI Region
- E. Automatic containerization of Virtual Machines to Oracle Container Engine for Kubernetes (OKE)
Answer: A,C
Explanation:
Estimating the cost to run the migrated workloads in the OCI environment and grouping and organizing discovered workloads to represent applications & lines of business are core features of the Oracle Cloud Migrations service.
NEW QUESTION # 31
Your company wants to expand its cloud infrastructure footprint by adopting Oracle Cloud VMware Solution (OCVS). The OCVS Software Defined Data Center (SDDC) platform will be dedicated to hosting business-critical workloads and should avoid single points of failure within its architecture. Which two would be considered while setting up the solution?
- A. OCI Fault Domain
- B. HCX Mobility Groups
- C. vSAN Fault Domain
- D. vSphere Distributed Resource Scheduler (DRS)
Answer: A,C
Explanation:
OCI Fault Domains and vSAN Fault Domains are critical considerations to avoid single points of failure and ensure high availability for business-critical workloads hosted on the OCVS SDDC platform.
NEW QUESTION # 32
How does containerization differ from virtualization in terms of resource optimization?
- A. Virtualization maximizes efficiency by running multiple applications on the same OS kernel
- B. Virtualization offers more flexibility in terms of application dependencies
- C. Containerization allows for more efficient utilization of hardware resources by sharing the host operating system
- D. Containers require a full operating system to run, whereas virtual machines share a single operating system
Answer: C
Explanation:
Containerization allows for more efficient utilization of hardware resources by sharing the host operating system. Containers only package the application and its dependencies, running on top of the host OS without the need for a separate guest OS.
NEW QUESTION # 33
You plan to perform migrations between on-premises and OCI. What is the minimum bandwidth required with FastConnect as the dedicated network link between the environments?
- A. 100 Gbps
- B. 50 Gbps
- C. 10 Gbps
- D. 1 Gbps
Answer: D
Explanation:
The minimum bandwidth required for FastConnect is 1 Gbps to ensure fast and reliable data transfer between the environments.
NEW QUESTION # 34
Your company is planning to decommission their on-premises data center hosting a set of Virtual Machines (VMs) that heavily rely on VMware technologies. The goal is to migrate those VMs into OCI, make this transition as quick as possible, ensuring the environment is highly available and can be controlled by the company after the migration. What are the two advantages of using Oracle Cloud VMware Solution (OCVS)?
- A. The company could convert all of VMware-based applications into native OCI Compute instances
- B. The company can free up their IT team as Oracle takes over the management, including updates and patching of the OCVS environment
- C. The company can control root access to the OCVS environment
- D. The company can bring their own product licenses (BYOL) for VMware products such as vSphere, vSAN, and NSX
- E. The company can move those application VMs into OCVS "as-is"
Answer: D,E
Explanation:
Two key advantages of using OCVS are the ability to bring your own licenses (BYOL) for VMware products, and the ability to move application VMs "as-is," minimizing the need for modifications.
NEW QUESTION # 35
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