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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Weight	Objectives
Managing Data and Concurrency	10%	- Managing Locks and Concurrency - Using SQL to Manage Data - Managing Transactions
Backup and Recovery Concepts	10%	- Performing Complete and Incomplete Recovery - Using RMAN for Backup and Recovery - Understanding Backup and Recovery Architecture
Administering User Accounts and Security	15%	- Managing Privileges and Roles - Implementing Security Policies - Creating and Managing Users
Understanding Oracle Database Architecture	20%	- Understanding Memory Structures - Explaining Storage Structures - Overview of Oracle Database Architecture - Understanding Background Processes - Understanding Multitenant Architecture
Configuring and Managing Oracle Network	10%	- Configuring Listener and Naming Methods - Managing Network Connections
Managing Database Instances	20%	- Starting Up and Shutting Down Databases - Using Data Dictionary and Dynamic Performance Views - Managing Alert Log and Trace Files - Using Initialization Parameters
Managing Storage Structures	15%	- Managing Control Files - Managing Redo Log Files - Managing Tablespaces and Data Files - Managing Undo Data

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Oracle Database Administration I Sample Questions (Q30-Q35):

NEW QUESTION # 30
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 IS NOT NULLAND cust_credit_limit IS NOT NULL;
C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND due_amount IS NOT NULL;
D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND cust_credit_level !=NULL;
E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND due_amount != NULL;

Answer: B

NEW QUESTION # 31
In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:
1. A size of 100 MB
2. AUTOEXTEND is off
3. UNDO_RETENTION is set to 15 minutes
4. It has RETENTION GUARANTEE
UNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.
What will happen when the next update is attempted by any transaction?

A. It succeeds and the generated undo is stored in SYSAUX.
B. It succeeds and the generated undo is stored in SYSTEM.
C. It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by the generated undo.
D. It fails and returns the error message "ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDOTBS1'".
E. It succeeds and the least recently written undo block of UNDOTBS1 is overwritten by the generated undo.

Answer: D

Explanation:
To guarantee the success of long-running queries or Oracle Flashback operations, you can enable retention guarantee. If retention guarantee is enabled, the specified minimum undo retention is guaranteed; the database never overwrites unexpired undo data even if it means that transactions fail due to lack of space in the undo tablespace. If retention guarantee is not enabled, the database can overwrite unexpired undo when space is low, thus lowering the undo retention for the system. This option is disabled by default.

NEW QUESTION # 32
Examine this command:

Which two statements are true?

A. Tables with one or more extents in this data file may be queried during the execution of this command.
B. The "to" clause containing the new file name must be specified even if Oracle Managed Files (OMF) is used.
C. It overwrites any existing file with the name SALES02.DBF.dbf in /u02 by default.
D. DML may be performed on tables with one or more extents in this data file during the execution of this command.
E. Compressed objects in SALES01.DBF will be uncompressed In SALES02.DBF after the move.

Answer: A,D

NEW QUESTION # 33
Your database instance is started with a PFILE.
Examine these parameters:

You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
What is the outcome?

A. Change is applied to the current instance, but does not persist after instance restart
B. It fails because the SCOPE clause is missing
C. The value is changed only in the PFILE and takes effect at the next instance startup
D. The value is changed for the current instance and in the PFILE

Answer: A

Explanation:
https://docs.oracle.com/database/121/SQLRF/statements_2017.htm#SQLRF00902

NEW QUESTION # 34
Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.)

A. Connect Time Failover requires the connect string to have two or more listener addresses configured
B. Source Routing requires the use of a name server
C. Connect Time Failover requires the use of Transparent Application Failover (TAF)
D. Load Balancing requires the use of a name server
E. Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall
F. Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration

Answer: A,B,E

Explanation:
https://docs.oracle.com/cd/E11882_01/network.112/e41945/advcfg.htm#NETAG013

NEW QUESTION # 35
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