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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Objectives
Database Storage Structures	- Control files and redo logs - Tablespaces and datafiles
Database Administration	- Managing users and privileges - Managing database objects
Backup and Recovery Concepts	- RMAN fundamentals - Backup and restore operations
Oracle Database Architecture	- Physical database structure - Database instance and memory structures
Multitenant Architecture	- Container and pluggable databases (CDB/PDB) - Managing pluggable databases
Monitoring and Performance Management	- Database monitoring tools - Performance tuning basics
Database Installation and Configuration	- Installing Oracle Database software - Creating and configuring a database

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Oracle Database Administration I 認定 1Z1-082 試験問題 (Q19-Q24):

質問 # 19
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? (Choose three.)

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

正解：D、E、F

質問 # 20
Which two statements are true about the PMON background process? (Choose two.)

A. It registers database services with all local and remote listeners known to the database instance
B. It records checkpoint information in the control file
C. It frees unused temporary segments
D. It kills sessions that exceed idle time
E. It frees resources held by abnormally terminated processes

正解：D、E

解説：
Reference:
* Performs process recovery when a user process fails - Cleans up the database buffer cache - Frees resources that are used by the user process * Monitors sessions for idle session timeout

質問 # 21
Which two tasks can you perform using DBCA for databases? (Choose two.)

A. Enable flashback database for an existing database
B. Change the standard block size of an existing database
C. Configure incremental backups for a new database
D. Configure a nonstandard block size for a new database
E. Register a new database with an available Enterprise Manager Management server

正解：B、E

解説：
Explanation/Reference: https://docs.oracle.com/cd/B16254_01/doc/server.102/b14196/install003.htm

質問 # 22
Which two are true about shrinking a segment online? (Choose two.)

A. To shrink a table it must have a UNIQUE KEY constraint
B. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
C. It always eliminates all migrated rows if any exist in the table
D. To shrink a table it must have row movement enabled
E. To shrink a table it must have a PRIMARY KEY constraint
F. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)

正解：D、F

解説：
Reference:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_3001.htm

質問 # 23
Examine the description of the CUSTOMERS table:

For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND due_amount != NULL;
B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND cust_credit_level !=NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level <> NULLAND due_amount <> NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND due_amount IS NOT NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND cust_credit_limit IS NOT NULL;

正解：E

質問 # 24
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