CERT 1Z0-1093-25 GUIDE & 1Z0-1093-25 QUESTIONS PDF

Cert 1z0-1093-25 Guide & 1z0-1093-25 Questions Pdf

Cert 1z0-1093-25 Guide & 1z0-1093-25 Questions Pdf

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Oracle 1z0-1093-25 Questions Pdf | New 1z0-1093-25 Test Forum

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Oracle Cloud Database Services 2025 Professional Sample Questions (Q24-Q29):

NEW QUESTION # 24
When provisioning a Base Database Service (BaseDB) virtual machine (VM) instance in Oracle Cloud Infrastructure (OCI), which of the following actions MUST be performed before launching the DB system?

  • A. Configuring Oracle GoldenGate replication.
  • B. Creating a Virtual Cloud Network (VCN) with appropriate subnets and security rules.
  • C. Creating a backup policy for the database being provisioned.
  • D. Configuring the Data Guard association between the VM and a standby database.

Answer: B

Explanation:
VCN Requirement:
AVirtual Cloud Network (VCN)is essential for creating a BaseDB VM instance because itprovidesnetwork connectivityandIP addressing. Subnets and security rules define the access policies and network segmentation.
Without a VCN, the VM instance cannot communicate with other resources or external networks.
Why the other options are incorrect:
* A:Data Guard can be configured after provisioning.
* B:Backup policies are important but can be set up later.
* D:Oracle GoldenGate replication is optional and not required at the time of provisioning.


NEW QUESTION # 25
When cloning a BaseDB database for development and testing, which of the following considerations is MOST critical to ensure compliance with data privacy regulations?

  • A. Scheduling the cloning operation during off-peak hours.
  • B. Maintaining the same network security group (NSG) rules as the production database.
  • C. Ensuring the compute shape of the cloned database is identical to the production database.
  • D. Using the same database version as the production database.
  • E. Masking or anonymizing sensitive data in the cloned database.

Answer: E

Explanation:
B: Masking or anonymizing sensitive data:
* Data privacy regulations (likeGDPR,HIPAA) mandate thatpersonally identifiable information (PII) is protected, even in non-production environments.
* Cloning a database without masking sensitive data could expose confidential information to unauthorized users.
* Techniques include:
* Data masking:Replacing real data with realistic, but non-sensitive values.
* Data anonymization:Irreversibly removing personally identifiable information.
Why the other options are incorrect:
* A. Matching compute shape:Relevant to performance, not privacy.
* C. Using the same database version:Important for compatibility, but not related to data privacy.
* D. Same NSG rules:Important for network security, but does not directly address data exposure.
* E. Off-peak scheduling:Minimizes disruption but does not address data protection.


NEW QUESTION # 26
In a key-value NoSQL database, what is the primary mechanism for accessing data?

  • A. Scanning all documents in the database to find matching data.
  • B. Traversing relationships between nodes to find related data.
  • C. Using SQL queries to filter and retrieve data based on complex criteria.
  • D. Using a unique key to retrieve the associated value directly.

Answer: D

Explanation:
Data Access in Key-Value Stores:
A key-value database works by storing data askey-value pairs. The primary access methodinvolves:
* Providing aunique keyto quickly retrieve the associated value.
* This model is highly efficient forsimple lookupsand data retrieval where thekey is known.
* Due to itssimplicity and speed, it is commonly used for caching and session management.
Why the other options are incorrect:
* A:SQL queries are used in relational databases, not key-value stores.
* C:Traversing nodes is typical ingraph databases.
* D:Scanning all documents is inefficient and not the primary method in key-value stores.


NEW QUESTION # 27
Which statement is FALSE regarding the relationship between provisioned throughput and workload characteristics in NoSQL Database Cloud Service?

  • A. A write-heavy workload typically necessitates more write capacity units than a read-heavy workload.
  • B. Larger average record sizes usually demand higher read and write capacity units.
  • C. Higher query complexity generally requires higher read throughput.
  • D. Increased frequency of table scans reduces the throughput needed.

Answer: D

Explanation:
Understanding Throughput in NoSQL:
Throughput in NoSQL databases is influenced by factors likequery complexity, workload type (read/write), and record size.
* Higher query complexity (A):Complex queries involving aggregation or joins consume more read capacity.
* Write-heavy workload (B):Writes inherently require more capacity units due to data modification and consistency checks.
* Larger record sizes (D):More data per operation increases the read/write capacity needed.
Why C is incorrect:
* C:Table scans involve reading large volumes of data, which increases throughput requirements rather than reducing them. Frequent table scans can overwhelm the system, especially with large datasets.


NEW QUESTION # 28
You are managing an Exadata Database Service (ExaDB) and need to perform a full backup of the database to Oracle Cloud Infrastructure Object Storage using the bkup_api utility. The backup must include all datafiles and control files. Which bkup_api command will achieve this?

  • A. bkup_api bkup_start --dbname=dbname
  • B. bkup_api bkup_start --datafiles --controlfile --dbname=dbname
  • C. bkup_api bkup_start --all --dbname=dbname
  • D. bkup_api bkup_start --full --dbname=dbname

Answer: D

Explanation:
Full Backup with bkup_api:
The --full flag in thebkup_api commandensures that the backup includesall datafiles and control files. This command is essential for creating acomplete, consistent backupsuitable for recovery purposes.
* The backup is stored inOCI Object Storage, leveraging cloud scalability and redundancy.
* The --dbname parameter specifies which database to back up.
Why the other options are incorrect:
* A:This command may initiate a default backup, not a full one.
* B:Specifying files individually is less efficient than using --full.
* D:The --all option does not necessarily imply a full backup.


NEW QUESTION # 29
......

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