Free Practice Questions for Oracle 1Z0-1123-25 Exam

Question 1

You are planning to migrate an Oracle database from an on-premises data center to OCI Database service. Which two can be used for the migration?

AData Transfer Service

BData Pump

CBlock Volume Replication

DZero Downtime Migration

EOracle Cloud Migrations

Correct Answer: B. Data Pump; D. Zero Downtime Migration

Explanation:

Data Pump and Zero Downtime Migration are both valid options for migrating an Oracle database from on-premises to OCI Database service. Data Pump allows for export and import of data and metadata, while Zero Downtime Migration ensures continuous availability during the migration process.

Question 2

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?

AProvide detailed application topology to choose the target OCI Region

BEstimate the cost to run the migrated workloads in the OCI environment

CTransfer large volumes of data through a storage appliance

DGroup and organize discovered workloads to represent applications & lines of business

EAutomatic containerization of Virtual Machines to Oracle Container Engine for Kubernetes (OKE)

Correct Answer: B. Estimate the cost to run the migrated workloads in the OCI environment; D. Group and organize discovered workloads to represent applications & lines of business

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.

Question 3

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?

AvSphere Distributed Resource Scheduler (DRS)

BOCI Fault Domain

CvSAN Fault Domain

DHCX Mobility Groups

Correct Answer: B. OCI Fault Domain; C. vSAN Fault Domain

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.

Question 4

How does the Copy to another region feature in Oracle Cloud Infrastructure (OCI) aid in achieving smooth transitions during Block Volume migration?

AIt compresses backup data before transferring, thereby expediting the migration process

BIt automates the migration process by transferring applications between regions

CIt ensures real-time data synchronization during migration for minimal downtime

DIt replicates Block Volume backups to a target region, enabling smooth data migration

Correct Answer: D. It replicates Block Volume backups to a target region, enabling smooth data migration

Explanation:

The correct choice is that the Copy to another region feature in OCI aids in achieving smooth transitions during Block Volume migration by replicating Block Volume backups to a target region. This enables a seamless data migration process without the need for manual backup and restore operations.

Question 5

Which two can help you perform logical online migration to Oracle Autonomous Database?

AOracle Golden Gate

BOracle Enterprise Manager Migration Workbench

COCI Database Migration

DOracle SQL Developer

Correct Answer: A. Oracle Golden Gate; D. Oracle SQL Developer

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.

Question 6

You are setting up Oracle Cloud Migrations (OCM) service for migrating workloads to Oracle Cloud Infrastructure (OCI). As part of the initial configuration, a Source Environment is created with Remote connection agents and Agent Dependency. However, the Replication plugin indicates the status as Inactive. What is the likely reason for this issue?

AThe replication plugin does not support encrypted VM disk files

BThe OCI tenancy has exceeded its service limit for compute instances, preventing the replication plugin from provisioning necessary resources

CThe source VMs are using an unsupported file system that the replication plugin is unable to process

DThe VDDK (Virtual Disk Development Kit) file required by the replication plugin is missing in the OCI Object Storage

Correct Answer: D. The VDDK (Virtual Disk Development Kit) file required by the replication plugin is missing in the OCI Object Storage

Explanation:

The VDDK file is essential for the replication plugin to access and replicate VM disk files. If this file is missing in the OCI Object Storage, the replication plugin will be unable to function properly, resulting in an inactive status.

Question 7

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?

AEvaluating and identifying workloads

BOptimizing the environment

CPlanning and establishing a foundation

DImplementing workloads

Correct Answer: C. Planning and establishing a foundation

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.

Question 8

Which statement accurately describes the routing mechanism within a Virtual Cloud Network (VCN) in Oracle Cloud Infrastructure (OCI)?

AEach subnet within a VCN employs multiple route rules, allowing for diverse routing paths based on traffic priorities

BA subnet in a VCN is associated with a single route table, dictating how outbound traffic from all Virtual Network Interface Cards (VNICs) within that subnet is directed

CIf no route rule matches the network traffic you intend to route outside the VCN, the traffic is sent to the Internet

DVCN local routing necessitates manual configuration of route rules to facilitate infrastructure communication

Correct Answer: B. A subnet in a VCN is associated with a single route table, dictating how outbound traffic from all Virtual Network Interface Cards (VNICs) within that subnet is directed

Explanation:

In Oracle Cloud Infrastructure (OCI), a subnet in a Virtual Cloud Network (VCN) is indeed associated with a single route table. This route table determines how outbound traffic from all Virtual Network Interface Cards (VNICs) within that subnet is directed, providing a centralized control mechanism for routing within the VCN.

Question 9

What is the primary purpose of the Oracle Cloud Balancer or OCI Native Ingress Controller during the implementation phase of Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) workloads?

AExpose running workloads internally and externally

BConduct comprehensive testing and monitor performance metrics

CGradually shift traffic from the source environment to OKE

DEfficiently manage packages with Helm charts

Correct Answer: A. Expose running workloads internally and externally

Explanation:

Exposing running workloads internally and externally is the main purpose of the Oracle Cloud Balancer or OCI Native Ingress Controller during the implementation phase of OKE workloads. These tools help manage incoming traffic and route it to the appropriate services within the Kubernetes cluster.

Question 10

You are a migration architect responsible for migrating 100 TB of on-premises data to Oracle Cloud Infrastructure (OCI). Because of limited bandwidth and security concerns, transferring the data over the public Internet is not feasible. Which OCI service would you recommend to efficiently transfer the large volume of on-premises data to OCI while ensuring data security?

ASnowball

BData Transfer Service

CData Integration

DStorage Gateway

Correct Answer: B. Data Transfer Service

Explanation:

Data Transfer Service in OCI is specifically designed for efficiently transferring large volumes of data to OCI while ensuring data security. It provides high-speed data transfer over dedicated network connections, making it the ideal choice for migrating 100 TB of on-premises data to OCI.