授權的Oracle 1Z1-182：Oracle Database 23ai Administration Associate證照資訊 -高通過率的Fast2test 1Z1-182熱門考題

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>> 1Z1-182證照資訊 <<

1Z1-182熱門考題，1Z1-182學習筆記

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最新的 Oracle Database 23ai 1Z1-182 免費考試真題 (Q82-Q87):

問題 #82
Which statement is true about the PDB_DBA role granted to a local user during the creation of a new PDB?

A. No privileges are provided with the PDB_DBA role.
B. The role has the privileges to administer the PDB.
C. The role has the privileges to create and manage users within the PDB.
D. The role has the privileges to perform DDL operations on all local schema objects.

答案：B

解題說明：
A .True. PDB_DBA grants admin rights (e.g., CREATE SESSION, ALTER SYSTEM) within the PDB.
B .False. DDL on objects requires ownership or explicit grants.
C .False. User management needs CREATE USER privilege, not inherent.
D .False. It includes multiple privileges, not none.

問題 #83
You start your database instance in NOMOUNT state. Which two actions are performed?

A. The control files are opened.
B. Memory is allocated for the SGA.
C. SYS can access the database.
D. All required background processes are started.
E. The consistency of the database is checked.

答案：B,D

解題說明：
A .True. Background processes (e.g., PMON) start.
B .False. Consistency checks require MOUNT.
C .False. Control files open in MOUNT.
D .True. SGA is allocated at startup.
E .False. SYS access requires OPEN.

問題 #84
Which statement regarding PDBs (Pluggable Databases) is correct?

A. When the relocation of a PDB is finished, the source PDB must be dropped.
B. You can drop a PDB as long as it is not the PDB seed.
C. You cannot drop a source PDB of a refreshable PDB.
D. You can drop an application root along with the associated PDBs.

答案：B

解題說明：
A .True. Any PDB except PDB$SEED can be dropped.
B .False. Source PDBs of refreshable clones can be dropped after cloning.
C .False. Dropping an application root requires explicit handling of PDBs.
D .False. Relocation doesn't mandate dropping the source PDB.

問題 #85
Examine these commands:
[oracle@host01 ~]$ sqlplus u1/oracle
SQL> SELECT * FROM emp;
ENO ENAME DN
-------------------------
1 Alan 2
2 Ben 2
SQL> exit
[oracle@host01 ~]$ cat emp.dat
1, Alan, 2
3, Curl, 4
4, Bob, 4
[oracle@host01 ~]$ sqlldr u1/oracle TABLE=emp
Which two statements are true?

A. It overwrites all data in EMP with data from EMP.DAT.
B. It generates a SQL script that it uses to load data from EMP.DAT to EMP.
C. It overwrites the data for Alan and adds data for Curl and Bob.
D. It appends data from EMP.DAT to EMP.
E. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations.

答案：D,E

解題說明：
SQL*Loader (sqlldr) loads data from external files into Oracle tables. The command sqlldr u1/oracle TABLE=emp uses defaults since no control file is specified. Let's evaluate:
A . It overwrites the data for Alan and adds data for Curl and Bob.
False. SQLLoader's default mode is APPEND, not REPLACE. It doesn't "overwrite" existing rows unless REPLACE or TRUNCATE is specified in a control file. Here, row 1, Alan, 2 exists, and SQLLoader will either skip it (if a primary key rejects duplicates) or raise an error, but it won't overwrite. 3, Curl, 4 and 4, Bob, 4 are appended.
Mechanics:Without a control file, SQL*Loader assumes APPEND and matches columns positionally (ENO, ENAME, DN).
B . It generates a log that contains control file entries, which can be used with normal SQL*Loader operations.
True. SQL*Loader always generates a log file (e.g., emp.log) when invoked. With no control file specified, it auto-generates one internally and logs it, including entries like LOAD DATA INFILE 'emp.dat' APPEND INTO TABLE emp FIELDS TERMINATED BY ',' (ENO, ENAME, DN). This can be reused.
Practical Use:The log's control section is editable for future runs (e.g., changing to REPLACE).
C . It appends data from EMP.DAT to EMP.
True. Default behavior without a control file is APPEND, adding new rows (3, Curl, 4 and 4, Bob, 4) to EMP. Existing rows (1, Alan, 2, 2, Ben, 2) remain unless constrained (e.g., unique key violations).
Mechanics:SQL*Loader processes each line of emp.dat, skipping duplicates if constrained, appending otherwise.
D . It generates a SQL script that it uses to load data from EMP.DAT to EMP.
False. SQL*Loader doesn't generate SQL scripts; it uses direct path or conventional path loading, not SQL scripts. The log contains control file syntax, not a script.
E . It overwrites all data in EMP with data from EMP.DAT.
False. REPLACE or TRUNCATE would overwrite, but these require a control file with those options. Default APPEND preserves existing data.

問題 #86
Which three relationships between instances and Oracle databases are possible without using Multi-tenant?

A. One instance on one server mounting multiple databases.
B. One instance on one server mounting and opening multiple databases.
C. One instance on one server mounting and opening one database.
D. One instance on one server that has no database mounted.
E. Two or more instances on separate servers all mounting and opening the same database.

答案：C,D,E

解題說明：
A .False. One instance can't mount multiple DBs without multitenant.
B .True. RAC allows multiple instances to share one DB.
C .False. Same as A; not possible without CDB.
D .True. An instance can start in NOMOUNT with no DB.
E .True. Standard single-instance configuration.

問題 #87
......

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1Z1-182證照資訊有效通過Oracle Database 23ai Administration Associate考试

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