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Oracle 1z0-1093-25 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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.
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	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.

Oracle Cloud Database Services 2025 Professional Sample Questions (Q61-Q66):

NEW QUESTION # 61
Before migrating to MySQL HeatWave, what is the MOST important action to take regarding user accounts and privileges?

A. Merge all user accounts into a single 'admin' account.
B. Delete all user accounts except for the root account.
C. Reset all user passwords to default values.
D. Migrate all user accounts to use external authentication (e.g., LDAP).
E. Ensure all user accounts and privileges are compatible with MySQL 8.0, and recreate any incompatible accounts on the target instance.

Answer: E

Explanation:
B: Ensure all user accounts and privileges are compatible with MySQL 8.0:
* MySQL HeatWaveis based onMySQL 8.0, so compatibility is crucial.
* User accounts and privileges must be updated to match the security and syntax requirements of MySQL
8.0.
* If any incompatibility is detected, the accounts should be recreated on the target HeatWave instance.
* Typical issues include changes inpassword hashing algorithms,privilege structure, androle management.
Why the other options are incorrect:
* A. Resetting passwords to default:Risky from a security perspective and unnecessary.
* C. Deleting user accounts except root:This drastically limits access and disrupts database operations.
* D. External authentication (LDAP):Not mandatory or relevant to compatibility with HeatWave.
* E. Merging accounts into a single 'admin':Violates best practices for user management and security.

NEW QUESTION # 62
During the provisioning of an Oracle Cloud Infrastructure (OCI) Base Database Service (BaseDB) virtual machine (VM), what is the PRIMARY purpose of specifying the database name (DB Name)?

A. To create the initial database instance and its associated files.
B. To determine the operating system user account used for database administration.
C. To select the character set for the operating system.
D. To define the hostname for the database server.

Answer: A

Explanation:
Database Name (DB Name):
When provisioning aBaseDB VM, thedatabase nameis used to create the initial instance. It specifies how the database will be identified and helps in creating associated system files, such ascontrol files, redo log files, and datafiles. This name is crucial fordatabase instance managementand connectivity within the OCI environment.
The DB name becomes part of theDB System resource identifierin OCI, which is used in automation and management tasks.
Why the other options are incorrect:
* A:The hostname is specified independently during network configuration.
* B:OS user accounts are configured separately.
* D:The character set is chosen during database configuration, not based on the DB name.

NEW QUESTION # 63
Which BaseDB lifecycle management activity is MOST directly associated with ensuring the continued availability of a database instance during a planned maintenance window?

A. Using Oracle Data Guard for a switchover operation.
B. Applying a quarterly security patch.
C. Resizing the block volume storage.
D. Performing an in-place upgrade of the database software.
E. Taking a full database backup using RMAN.

Answer: A

Explanation:
C: Using Oracle Data Guard for a switchover operation:
* Aswitchoveris a planned role reversal between the primary and standby databases.
* Zero data loss:Since both databases are synchronized, it minimizes downtime.
* Ideal for planned maintenance:The primary database is switched to the standby, allowing maintenance on the original primary without downtime.
* Data Guard Switchover:
sql
CopyEdit
ALTER DATABASE SWITCHOVER TO standby_db;
Why the other options are incorrect:
* A. Full backup with RMAN:Backup does not ensure availability during maintenance.
* B. In-place upgrade:Typically involves downtime.
* D. Quarterly patch:Patching often requires database restarts, causing downtime.
* E. Resizing block volume:Does not maintain availability if the database requires restarting.

NEW QUESTION # 64
Which two requirements must be met before you can create an Exadata Database Service VM Cluster?

A. A Virtual Cloud Network (VCN) with necessary subnets for client access and backups.
B. A valid support identifier (SI) associated with the OCI account.
C. A configured Exadata Cloud@Customer infrastructure.
D. An Exadata Infrastructure resource must be created first.
E. A configured Oracle Cloud Infrastructure (OCI) Vault and Key.

Answer: A,D

Explanation:
* B. VCN and Subnets:Exadata Database Service VM Clusters require a VCN to provide network connectivity for database instances, client access, and backups. Proper subnets are essential for this network setup.
* E. Exadata Infrastructure Resource:Before creating a VM Cluster, an Exadata Infrastructure resource must be provisioned. The VM Cluster resides within this infrastructure.
Why the other options are incorrect:
* A:OCI Vault and Key are used for encryption but not mandatory for VM Cluster creation.
* C:A valid SI is needed for support but not a technical requirement for VM cluster creation.
* D:Exadata Cloud@Customer is a separate service from Exadata Database Service.

NEW QUESTION # 65
What is the MOST effective method to minimize the recovery time objective (RTO) for a BaseDB database in the event of a complete DB system failure, assuming both cost and complexity are important considerations?

A. Using Oracle Data Guard with synchronous replication to a remote region.
B. Relying solely on regular full database backups.
C. Using Oracle Data Guard with asynchronous replication to a different availability domain within the same region.
D. Performing frequent incremental backups with block change tracking enabled.
E. Implementing a custom script to regularly copy data files to a secondary block volume.

Answer: C

Explanation:
C: Using Oracle Data Guard with asynchronous replication to a different availability domain within the same region.
Asynchronous Replication:
* Minimizes performance impact while ensuring data protection.
* Placing standby in the same region reduces latency and cost.
* Fast switchover reduces RTO.
Why the other options are less effective:
* A. Full backups:Time-consuming for recovery.
* B. Synchronous to a remote region:Increases latency and cost.
* D. Incremental backups:Slower recovery process.
* E. Custom script:Complex and less reliable than Data Guard.

NEW QUESTION # 66
......

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