TOP FEATURES OF 2PASS4SURE 1Z0-1093-25 ORACLE CLOUD DATABASE SERVICES 2025 PROFESSIONAL PDF QUESTIONS FILE AND PRACTICE TEST SOFTWARE

Top Features of 2Pass4sure 1z0-1093-25 Oracle Cloud Database Services 2025 Professional PDF Questions File and Practice Test Software

Top Features of 2Pass4sure 1z0-1093-25 Oracle Cloud Database Services 2025 Professional PDF Questions File and Practice Test Software

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Oracle 1z0-1093-25 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Base Database Service - VM (BaseDB): This section of the exam measures the skills of a Cloud Database Administrator and covers the foundational elements of Oracle’s Base Database Service. It includes understanding what the BaseDB service is, how to provision and manage it, and lifecycle operations such as backups, recovery, patching, and upgrades. It also tests familiarity with monitoring and management interfaces used to control and observe the BaseDB environment.
Topic 2
  • Oracle Cloud Infrastructure Database Management Service: This section of the exam measures the skills of a Cloud Operations Analyst and provides insight into Oracle’s Database Management Service on OCI. It focuses on enabling the service for databases, monitoring their performance, and performing diagnostic and tuning activities. It also covers tasks related to the administration of databases running on Oracle Cloud Infrastructure.
Topic 3
  • Exadata Database Service (ExaDB): This section of the exam measures the skills of a Database Infrastructure Engineer and focuses on the advanced Exadata Database Service. It includes the provisioning of Exadata systems, management of Exadata Cloud Infrastructure, and VM Cluster administration. It also evaluates knowledge of lifecycle management tasks and how to interact with various Exadata management utilities and interfaces.
Topic 4
  • MySQL HeatWave Technical Overview: This section of the exam measures the skills of a MySQL Cloud Specialist and introduces MySQL HeatWave, Oracle’s high-performance analytics engine for MySQL. It includes provisioning, migrating existing MySQL databases to HeatWave, and working with its analytical and machine-learning capabilities. It also covers day-to-day operational activities within the MySQL HeatWave environment.
Topic 5
  • NoSQL Database Service Technical Overview: This section of the exam measures the skills of a NoSQL Developer and explores Oracle’s NoSQL Database Service. It includes understanding the basics of NoSQL architecture, handling table-level security, rate limiting, and data modeling. It also covers concepts like provisioned throughput and the usage of language SDKs for interacting with NoSQL services on Oracle Cloud.

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Oracle Cloud Database Services 2025 Professional Sample Questions (Q16-Q21):

NEW QUESTION # 16
Which of the following is the recommended approach for migrating a large, mission-critical database from an on-premises Exadata system to Exadata Database Service with minimal downtime?

  • A. Traditional export/import using Data Pump over a public network.
  • B. Using SQL Developer to copy the data over a VPN connection.
  • C. Creating a physical standby database using Data Guard and switching over to the standby in OCI.
  • D. Performing a full backup and restore to a new Exadata Database Service instance.

Answer: C

Explanation:
B: Using Data Guard for physical standby and switchover:
* This method enablesminimal downtimemigration.
* Steps:
* Configure Data Guard to synchronize thestandby databasewith the primary on-premises database.
* Once synchronized, perform aswitchoverto make the standby the new primary.
* Downtime is limited to the switchover duration.
* This approach leveragesreal-time replicationto minimize disruption.
Why the other options are incorrect:
* A. Export/Import with Data Pump:Too time-consuming for large databases.
* C. Full backup and restore:High downtime due to the time required for data transfer and restoration.
* D. Copying via SQL Developer:Not feasible for mission-critical and large databases due to slow transfer speeds.


NEW QUESTION # 17
You are tasked with checking the status of the Exadata Database Service (ExaDB) components using the dcli utility. You need to gather information about the health and status of the database servers and storage cells across the ExaDB infrastructure. Which dcli command, combined with appropriate commands run across the nodes, will provide the most comprehensive overview?

  • A. dcli -g cell_group "list cell attributes name, status, metriccurrent"
  • B. dcli -g cell_group "list cell attributes name, status" combined with dcli -g dbnodes "srvctl status database -d dbname"
  • C. dcli -g dbnodes "list dbnodes"
  • D. dcli -g all "list status"

Answer: B

Explanation:
A: dcli -g cell_group "list cell attributes name, status" combined with dcli -g dbnodes "srvctl status database -d dbname" dcli Utility:
* dcli(Distributed Command Line Interface) allows you to run commands on multiple nodes simultaneously.
* cell_group: A group configuration file listing all storage cells.
* dbnodes: A group configuration file listing all database nodes.
Commands Explanation:
* dcli -g cell_group "list cell attributes name, status":
* Retrieves the name and current status of each storage cell.
* dcli -g dbnodes "srvctl status database -d dbname":
* Checks the status of the database instances on the compute nodes.
* Combining these commands provides a complete picture of both storage and compute components.
Why the other options are incorrect:
* B. Including metriccurrent:Produces excessive output, not suitable for a quick health check.
* C. Listing dbnodes only:Insufficient as it lacks storage cell status.
* D. dcli -g all "list status":Invalid syntax and lacks specificity.


NEW QUESTION # 18
Which statement BEST describes the primary architectural distinction between Exadata Database Service and a traditional Oracle Database deployed on virtual machines in the cloud?

  • A. Exadata Database Service exclusively supports Oracle RAC, while traditional cloud deployments can support both single-instance and RAC databases.
  • B. Exadata Database Service utilizes only virtualized compute nodes, while traditional deployments use bare metal.
  • C. Exadata Database Service uses a completely different SQL parsing engine compared to a traditional Oracle Database.
  • D. Exadata Database Service integrates specialized, high-performance storage servers and a high- bandwidth, low-latency RDMA over Converged Ethernet (RoCE) network, optimized for database workloads, which are not present in typical cloud VM deployments.

Answer: D

Explanation:
Exadata's Unique Architecture:
Exadata Database Service is engineered specifically for Oracle Database workloads. The architecture leverages specialized storage servers that performdata-intensive operations at the storage level(such as filtering and aggregation), reducing the amount of data sent to the compute nodes.
TheRoCE network(RDMA over Converged Ethernet) provides high-bandwidth, low-latency connectivity between compute and storage nodes, significantly enhancing I/O performance. This architecture is optimized for bothOLTP and OLAP workloads, making Exadata a superior choice for performance-critical applications.
Why the other options are incorrect:
* A:Exadata combines both virtualized and bare metal compute nodes.
* C:Both Exadata and traditional cloud deployments can support Oracle RAC, but Exadata is optimized for it.
* D:Exadata uses the same Oracle Database SQL parsing engine; the difference lies in the optimized hardware.


NEW QUESTION # 19
What primary security mechanism within Oracle NoSQL Database Cloud Service governs access to individual tables, dictating which users or groups can perform specific actions?

  • A. Transparent Data Encryption (TDE)
  • B. Database Vault
  • C. Virtual Cloud Network (VCN) security lists
  • D. Identity and Access Management (IAM) policies

Answer: D

Explanation:
IAM Policies:
Oracle NoSQL Database Cloud Service usesOCI IAM policiesto control access to tables. These policies specify who (user or group) can perform what actions (read, write, delete) on specific database resources. This centralized approach allows for granular permission control, supporting the principle ofleast privilege.
IAM policies are configured at theOCI tenancy leveland can be customized to define access based onusers, groups, and dynamic groups. They are essential for maintaining secure data access, especially in multi- tenant environments.
Why the other options are incorrect:
* A:VCN security lists control network traffic, not table-level access.
* C:Database Vault is for fine-grained access control within traditional Oracle Databases, not NoSQL.
* D:TDE handles data encryption, not access management.


NEW QUESTION # 20
What role does the Exadata Storage Server Software play within the Exadata Database Service architecture?

  • A. It provides intelligent storage capabilities, including data filtering, compression, and encryption.
  • B. It manages the virtual machines hosting the database instances.
  • C. It acts as a load balancer distributing connections across the database instances.
  • D. It provides the operating system and management software for the database servers.

Answer: A

Explanation:
C: Intelligent Storage Capabilities:
* The Exadata Storage Server Software enhances data processing at the storage layer.
* Key features include:
* Smart Scan:Offloads SQL processing to storage.
* Compression:Reduces data size and improves I/O efficiency.
* Encryption:Protects data at rest.
* This software significantly boosts database performance by reducing data transfer to the compute nodes.
Why the other options are incorrect:
* A. VM management:Handled by OCI infrastructure.
* B. OS and management software:Not related to Exadata Storage Server Software.
* D. Load balancing:Handled by Oracle RAC or OCI load balancers.


NEW QUESTION # 21
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