PASS GUARANTEED QUIZ HIGH PASS-RATE ORACLE - 1Z0-1093-25 LATEST EXAM PDF

Pass Guaranteed Quiz High Pass-Rate Oracle - 1z0-1093-25 Latest Exam Pdf

Pass Guaranteed Quiz High Pass-Rate Oracle - 1z0-1093-25 Latest Exam Pdf

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2025 Authoritative 1z0-1093-25 – 100% Free Latest Exam Pdf | Oracle Cloud Database Services 2025 Professional Test Sample Questions

If you're looking to advance your Oracle career, Oracle 1z0-1093-25 Exam can help you achieve that goal. This certification exam is essential to assist professionals in every aspect of their field. However, studying for the exam can be challenging, and finding reliable study materials can be difficult. This is where PrepAwayExam comes in.

Oracle Cloud Database Services 2025 Professional Sample Questions (Q66-Q71):

NEW QUESTION # 66
What is the primary processing paradigm employed by the HeatWave query accelerator for analytical workloads?

  • A. Key-value pair processing
  • B. Disk-based processing
  • C. Row-based processing
  • D. Index-based processing
  • E. Columnar processing

Answer: E

Explanation:
HeatWave's Processing Model:
HeatWave usescolumnar in-memory processingto optimize analytical workloads. Storing data in columns rather than rows allows HeatWave toprocess large datasets efficiently, reducing the volume of data scanned and improving query performance. This is crucial for OLAP operations that involveaggregating and analyzing data.
Why the other options are incorrect:
* A:Row-based processing is typical for OLTP workloads, not analytical.
* B:HeatWave operates primarily in memory, not disk.
* D:Indexing enhances performance but is not the primary processing paradigm.
* E:Key-value processing is typical in NoSQL databases, not analytical systems.


NEW QUESTION # 67
Which of the following is a proactive strategy to avoid encountering table rate limits in Oracle NoSQL Database Cloud Service?

  • A. Regularly increasing the table's storage capacity to accommodate future growth.
  • B. Carefully designing the table schema and indexes to optimize query performance and minimize the number of read/write operations required.
  • C. Consolidating all data into a single large table to simplify management.
  • D. Disabling data encryption to reduce the overhead of read/write operations.

Answer: B

Explanation:
B: Optimizing schema and indexes:
* Efficient schema design reduces the number of read/write operations.
* Proper indexing reduces the need to scan large data volumes, minimizing the number of read capacity units (RCUs) consumed.
* This proactive approach helps stay within the provisioned rate limits, avoiding throttling.
Why the other options are incorrect:
* A. Increasing storage capacity:Does not address the rate of operations, only storage volume.
* C. Disabling encryption:Unwise due to security risks and does not significantly impact rate limits.
* D. Consolidating data into one table:Likely increases the rate of operations, worsening the problem.


NEW QUESTION # 68
You need to implement a backup and recovery strategy for your MySQL HeatWave Database System. What is the recommended method for backing up and restoring your HeatWave cluster?

  • A. Relying solely on MySQL replication to another MySQL instance.
  • B. Using the OCI Object Storage service for storing manual database dumps.
  • C. Manually copying the data files from the HeatWave cluster's storage.
  • D. Utilizing OCI Database backups, which include both the MySQL Database System and the HeatWave cluster.
  • E. Using the MySQL Enterprise Backup tool directly on the HeatWave nodes.

Answer: D

Explanation:
C: Utilizing OCI Database backups:
* Integrated withOracle Cloud Infrastructure (OCI), providing consistent and complete backups.
* Supports both theMySQL Database System and the HeatWave cluster, ensuring data integrity.
* Automates backup scheduling and retention policies.
* Facilitates easy restoration in case of data loss or corruption.
Why the other options are incorrect:
* A. Manual copying:Prone to errors and lacks consistency.
* B. Manual dumps to Object Storage:Labor-intensive and not automated.
* D. MySQL replication:Suitable for high availability, but not a substitute for regular backups.
* E. MySQL Enterprise Backup on nodes:Complex and not designed for HeatWave's distributed environment.


NEW QUESTION # 69
Within an IAM policy for Oracle NoSQL Database Cloud Service, what is the purpose of the "resource" element when defining table access permissions?

  • A. To specify the IAM group that the policy applies to.
  • B. To set the expiration date for the IAM policy.
  • C. To determine the geographical region where the NoSQL database is located.
  • D. To define the specific NoSQL table or tables to which the policy's permissions apply.

Answer: D

Explanation:
B: Define specific NoSQL table permissions:
* The"resource"element specifies which Oracle NoSQL tables the IAM policy will apply to.
* It allows fine-grained access control by linking specific tables to permission statements.
* This ensures that only authorized users or groups can perform operations on specified tables.
Example IAM Policy Syntax:
{
"action": "nosql:table:read",
"resource": "ocid1.nosqltable.oc1..exampleuniqueID",
"effect": "allow"
}
Why the other options are incorrect:
* A. Specify IAM group:Groups are defined in the"subject"element, not the "resource" element.
* C. Geographical region:The region is usually part of theOCID(Oracle Cloud Identifier), not directly specified in the resource element.
* D. Set expiration date:Expiry is not defined within the "resource" element.


NEW QUESTION # 70
In a column-family NoSQL database, what is the purpose of a "super column"?

  • A. To group related columns together, providing a level of hierarchy within the column family.
  • B. To represent a single value associated with a row key.
  • C. To define the primary key for the entire database.
  • D. To store large binary objects (BLOBs).

Answer: A

Explanation:
Super Columns in Column-Family Databases:
Asuper columnis a higher-level construct used incolumn-family NoSQL databases(like Apache Cassandra).
It groups related columns together under a single name, forming atwo-level hierarchywithin a column family.
* This structure is useful when storing data that naturally fits anested or hierarchical format.
* For example, a user profile might contain super columns like "Address" (with sub-columns like
"Street", "City", "ZIP") and "Contacts" (with sub-columns like "Phone", "Email").
Why the other options are incorrect:
* A:A regular column represents a single value associated with a row key.
* C:Primary keys are defined at the row level, not using super columns.
* D:While BLOBs can be stored, the primary role of a super column is togroup related columns, not store binary data.


NEW QUESTION # 71
......

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