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Oracle Database 23ai Administration Associate Sample Questions (Q85-Q90):

NEW QUESTION # 85
Which two statements are true regarding Oracle database space management within blocks managed by Automatic Segment Space Management (ASSM)?

A. The first block with enough free space to accommodate a row being inserted will always be used for that row.
B. PCTFREE defaults to 10% for all blocks in all segments for all compression methods.
C. ASSM assigns blocks to one of the four fullness categories based on what percentage of the block is allocated for rows.
D. Insert operations always insert new rows into blocks with free space appropriate to the length of the row being inserted.
E. Update operations always relocate rows into blocks with free space appropriate to the length of the row being updated.

Answer: C,D

Explanation:
A .True. ASSM categorizes blocks (e.g., 0-25%, 25-50%) for efficient space use.
B .False. Updates may cause chaining/migration, not always relocation.
C .True. ASSM optimizes inserts into suitable blocks.
D .False. ASSM uses a bitmap, not necessarily the first block.
E .False. PCTFREE is segment-specific, not universally 10%.

NEW QUESTION # 86
You must create a tablespace of nonstandard block size in a new file system and plan to use this command: CREATE TABLESPACE ns_tbs DATAFILE '/u02/oracle/data/nstbs_f01.dbf' SIZE 100G BLOCKSIZE 32K; The standard block size is 8K, but other nonstandard block sizes will also be used. Which two are requirements for this command to succeed?

A. The /u02 file system must have at least 100G space for the datafile.
B. DB_32K_CACHE_SIZE must be less than DB_CACHE_SIZE.
C. The operating system must use a 32K block size.
D. DB_32K_CACHE_SIZE should be set to a value greater than DB_CACHE_SIZE.
E. DB_32K_CACHE_SIZE must be set to a value that can be accommodated in the SGA.

Answer: A,E

Explanation:
A .False. No such restriction exists; DB_32K_CACHE_SIZE is independent of DB_CACHE_SIZE.
B .True. A nonstandard block size (32K) requires a corresponding cache (DB_32K_CACHE_SIZE) set to a non-zero value within SGA limits.
C .False. OS block size is irrelevant; Oracle manages its own block sizes.
D .False. No requirement for it to exceed DB_CACHE_SIZE.
E .True. The file system must have 100G available for the datafile.

NEW QUESTION # 87
One of your database instances was shut down normally and then started in NOMOUNT state. You then executed this command: ALTER DATABASE MOUNT; Which two of these actions are performed?

A. The initialization parameter file is read.
B. Online redo logs are opened.
C. Oracle shared memory structures are allocated.
D. The alert log has instance startup details written to it.
E. Online data files are opened.
F. Control files are read.

Answer: D,F

Explanation:
A .False. Data files open in OPEN.
B .False. Redo logs open in OPEN.
C .False. PFILE/SPFILE is read at NOMOUNT.
D .False. SGA is allocated at NOMOUNT.
E .True. Alert log records mount event.
F .True. Control files are read in MOUNT.

NEW QUESTION # 88
Which two are benefits of external tables?

A. They support DELETEs, which transparently deletes records in the file system as if they were table rows.
B. They can be queried while the database is in the MOUNT state like dynamic performance views.
C. They support UPDATEs, which transparently updates records in the file system as if they were table rows.
D. The results of a complex join or aggregating function or both can be unloaded to a file for transportation to other systems.
E. They can be queried, transformed, and joined with other tables without having to load the data first.

Answer: D,E

Explanation:
A .False. External tables are read-only; no DELETE.
B .False. Require OPEN state, unlike V$ views.
C .False. No UPDATE support; read-only.
D .True. Queryable like regular tables without loading.
E .True. Data Pump can unload query results to files.

NEW QUESTION # 89
You want to apply the principle of Least Privilege in all your live databases. One of your requirements is to revoke unnecessary privileges from all users who have them using Privilege Analysis. Which three types of analyses can be done using the DBMS_PRIVILEGE_CAPTURE package?

A. Analysis of privileges that a user has on their own schema objects that they did use.
B. Analysis of all privileges used by all users including administrative users in the database.
C. Analysis of privileges that a user has on their own schema objects that they did not use.
D. Analysis of privileges granted directly to a role that are then used by a user who has been granted that role.
E. Analysis of privileges granted indirectly to a role that are then used by a user who has beengranted that role.
F. Analysis of all privileges used by all users but excluding administrative users in the database.

Answer: A,C,E

Explanation:
A .True. Captures unused self-owned object privileges.
B .False. SYS is excluded from capture.
C .False. No exclusion option for admin users.
D .False. Direct role grants aren't separately analyzed.
E .True. Tracks indirect role privileges used.
F .True. Identifies used self-owned privileges.

NEW QUESTION # 90
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