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Oracle Autonomous Database Cloud 2025 Professional Sample Questions (Q103-Q108):

NEW QUESTION # 103
Which three are use cases for Graph Studio? (Choose three.)

A. Facial recognition
B. Clustering
C. Churn analysis
D. Pattern matching
E. 3-D modelling

Answer: B,C,D

Explanation:
Graph Studio in Autonomous Database supports graph-based analysis:
Correct Answer (C): Pattern matching identifies relationships (e.g., fraud rings) using graph queries like PGQL.
Correct Answer (D): Clustering groups related nodes (e.g., communities) using graph algorithms.
Correct Answer (B): Churn analysis leverages graph relationships to predict customer loss (e.g., via influence networks), though less emphasized than C and D, it's a valid use case.
Incorrect Options:
A: Facial recognition is image-based, not graph-based.
E: 3-D modelling is a misinterpretation; it's not a primary graph use case.
These align with Graph Studio's strengths in relationship analysis.

NEW QUESTION # 104
Data Guard is enabled for your Autonomous Database and the Lifecycle State field for the primary database indicates that it is Stopped. Which statement is true?

A. Standby database is also stopped.
B. Switchover is automatically initiated.
C. Standby database is terminated.
D. Failover is automatically initiated.

Answer: A

Explanation:
With Autonomous Data Guard enabled, the primary and standby databases are tightly coupled:
Correct Answer (C): "Standby database is also stopped" is true. When the primary database is stopped (e.g., via OCI Console), the standby database is also stopped to maintain consistency and alignment between the two. This ensures the standby remains a viable replica when the primary restarts.
Incorrect Options:
A: Switchover (role reversal) requires manual initiation and an active primary; it doesn't occur automatically on stop.
B: The standby is not terminated; it remains configured but stopped.
D: Failover (standby promotion) is not automatic on a planned stop; it's triggered only by primary failure.
This behavior preserves Data Guard functionality.

NEW QUESTION # 105
Which predefined role that exists in Autonomous Database includes common privileges that are used by a Data Warehouse developer? (Choose the best answer.)

A. ADMIN
B. ADWC
C. ADBDEV
D. DWROLE

Answer: D

Explanation:
Autonomous Database provides predefined roles tailored to specific use cases. The correct answer is:
DWROLE (B): The DWROLE predefined role is designed for Data Warehouse developers. It includes privileges commonly needed for data warehousing tasks, such as creating tables, views, and materialized views, as well as executing analytical queries. This role is optimized for Autonomous Data Warehouse (ADW) workloads.
The incorrect options are:
ADBDEV (A): There is no predefined ADBDEV role in Autonomous Database; this appears to be a fictional or misinterpreted role.
ADMIN (C): The ADMIN role is a superuser role with full database privileges, far exceeding the needs of a typical Data Warehouse developer and not tailored to that specific use case.
ADWC (D): This is not a predefined role; it might be a typo or confusion with ADW (Autonomous Data Warehouse), but no such role exists.
DWROLE is the best fit for a Data Warehouse developer's needs.

NEW QUESTION # 106
Which stage of the indexing pipeline divides text into tokens?

A. Sectioner
B. Lexer
C. Filter
D. Tokenizer

Answer: B

Explanation:
The indexing pipeline in Oracle Text processes text for search:
Correct Answer (D): "Lexer" divides text into tokens (words, symbols) based on language rules and settings (e.g., whitespace, punctuation). It's the stage responsible for tokenization in Oracle's text indexing process.
Incorrect Options:
A: Sectioner identifies document sections (e.g., headers), not tokens.
B: Tokenizer is a generic term, but in Oracle Text, "Lexer" is the specific component.
C: Filter preprocesses text (e.g., removing stopwords), post-tokenization.
This step enables efficient text search capabilities.

NEW QUESTION # 107
How do you change the tablespace quota for user MTHEO on an Autonomous Database on Shared Infrastructure?

A. Execute DBMS_CLOUD_ADMIN.GRANT_TABLESPACE_QUOTA(username => 'MTHEO', tablespace_quota => 'UNLIMITED');
B. Execute ALTER DATABASE FOR USER MTHEO TABLESPACE DATA QUOTA = 10G;
C. Execute ALTER TABLESPACE DATA SET QUOTA = 10G;
D. Execute ALTER USER MTHEO QUOTA UNLIMITED ON TABLESPACE DATA;

Answer: D

Explanation:
Full Detailed In-Depth Explanation:
In Autonomous Database on Shared Infrastructure, tablespace quotas are managed using standard SQL commands, as administrative packages like DBMS_CLOUD_ADMIN are restricted in this environment. The correct method is:
ALTER USER MTHEO QUOTA UNLIMITED ON TABLESPACE DATA: This command directly modifies the user's quota on the DATA tablespace, which is the default tablespace in Autonomous Database. "UNLIMITED" removes any storage restrictions.
Analysis of options:
A: Incorrect. DBMS_CLOUD_ADMIN is used in dedicated infrastructure for advanced administrative tasks, not shared infrastructure for quota changes.
B: Correct. This is the standard SQL syntax supported in shared infrastructure.
C: Incorrect. ALTER TABLESPACE modifies tablespace properties, not user quotas, and isn't applicable here.
D: Incorrect. ALTER DATABASE syntax is invalid for user quotas; it's for database-wide settings.

NEW QUESTION # 108
......

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