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Oracle 1z0-062 Exam Dumps

Oracle 1z0-062 Exam Dumps

Oracle Database 12c: Installation and Administration

Total Questions : 379
Update Date : March 26, 2024
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1z0-062 Exam Dumps


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Oracle 1z0-062 Sample Questions

Question # 1

Which files must you copy from the Oracle home of the database that is being upgraded to the new Oracle home for Oracle Database 12c? (Choose three.)

A. the tnsnames.ora file 
B. the sqlnet.ora file 
C. the initialization parameter file 
D. the password file 
E. the listener.ora file 



Question # 2

Which three statements are true about the upgrade process? (Choose three.)

A. All system triggers are disabled during the upgrade process. 
B. Only queries on fixed views execute without errors until you run the catctl.pl script. 
C. The COMPATIBLE parameter must be set to at least 12.1.0 before issuing the command
D. All job queues remain active during the upgrade process. 
E. Only connections AS SYSDBA are allowed during the upgrade process. 



Question # 3

Your database supports an online transaction processing (OLTP) workload in which one of the applications creates a temporary table for a session and performs transactions on it. This consumes a lot of undo tablespace and generates lots of redo.   Which two actions would you take to solve this problem? (Choose two.)

A. Increase the size of the temporary tablespace.
B. Enable Automatic Memory Management (AMM).
C. Enable undo retention guarantee.
D. Enable temporary undo for the database.
E. Increase the size of the redo log buffer.



Question # 4

Your database has archive logging enabled and RMAN backups are taken at regular intervals. A data file in the USERS tablespace is damaged. Which command must you execute before starting the recovery of this tablespace?

A. ALTER TABLESPACE users OFFLINE 
B. STARTUP FORCE NOMOUNT 
C. STARTUP FORCE 



Question # 5

You create a locally managed tablespace ORDERS_TBS with automatic segment management. You then create the table DAILY_ORDS_LST in the ORDERS_TBS tablespace using the command. CREATE TABLE daily_ords_1st(ordno NUMBER, ord_date DATE) PCTFREE 20; How does the PCTFREE storage parameter influence data storage for this table?

A. It allows only 80% of space to be occupied in all data blocks of this table. 
B. It minimizes row chaining during row insertion. 
C. It minimizes row migration during existing row data updation. 



Question # 6

Which two statements are true about Oracle network connections? (Choose two.) 

A. A listener may listen on behalf of only one database instance at a time. 
B. A server process checks a user’s authentication credentials and creates a session if the credentials are valid.
C. The listener continuously monitors a connection after the user process connects to a service handler.
D. The listener always spawns a new server process to deal with each new connection. 
E. A connection request from a client is always first received by a listener running on the port that is used for the connection request for the database server.



Question # 7

What is pre-requisite to alter a role?

A. You should be granted the DBA role
B. You should set the OS_ROLES parameter to true. 
C. You should be granted the role with the GRANT OPTION.
D. You should have the ALTER ANY ROLE system privilege.



Question # 8

Which four operations performed after the Oracle Restart installation are automatically added to the Oracle Restart configuration? (Choose four.)

A. listener configured by using NETCA 
B. database service created by using SRVCTL 
C. database created by using a SQL statement
D. database created by using DBCA
E. ASM instance created by using ASMCA 



Question # 9

Which task is performed by a background process in a database instance?

A. Connecting between a client process and a dispatcher
 B. Executing PL/SQL code
 C. Creating dedicated server connections
 D. Copying online redo log files to offline storage 



Question # 10

One of your databases supports an OLTP workload.The default UNDO tablespace is fixed size with:1. RETENTION NOGUARANTEE2. UNDO_RETENTION is 12 minutesUser SCOTT gets this error after a query on the SALES table has run for more than 15minutes:ORA-01555: snapshot too oldWhich three factors taken separately or in some combination might be the cause?(Choose three.)

A. An update was made to the SALES table after the query began 
B. An update to the SALES table was committed after the query began 
C. A committed delete to the SALES table was made more than 12 minutes before the query began
D. An uncommitted update to the SALES table was made more than 12 minutes before the query began
E. A committed update to the SALES table was made more than 12 minutes before the query began



Question # 11

Identify two prerequisites for configuring Enterprise Manager Database Express (EM Express).

A. Grant the APEX_PUBLIC_USER role to the SYSMAN user. 
B. Use the DBMS_XDB_CONFIG.SETHTTPPORT procedure to configure a port number for Oracle HTTP Server. 
C. Install Oracle HTTP Server. 
D. Configure at least one dispatcher for the TCP/IP protocol. 



Question # 12

Examine the parameters: Your database instance is started with a PFILE. 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; Which is the outcome?

A. Change is applied to the current instance, but does not persist after instance restart. 
B. The value is changed only in the PFILE and takes effect at the next instance startup. 



Question # 13

Which two statements are true about initialization parameter files? (Choose two.)

A. A lost or damaged SPFILE can be re-created by using the parameter values listed in the alert log.
 B. A PFILE must exist for an SPFILE to be created.
 C. The ALTER SYSTEM command cannot be used to change the value of any parameter if a database instance has started using a PFILE.
 D. Both the SPFILE and PFILE must always reside on a file system accessible from the database host server.
 E. On startup, by default a database instance always first searches for an SPFILE, and if it does not find any, searches for a PFILE. 



Question # 14

Which two options can be configured for an existing database by using the Database Configuration Assistant (DBCA)? (Choose two.)

A. Configure Label Security 
B. Database Vault in ORACLE_HOME 
C. Oracle Suggested Backup Strategy 



Question # 15

The performance of your database degrades between 11:00 AM and 3:00 PM. Automatic Workload Repository (AWR) snapshots are collected on an hourly basis. What is the most efficient way of diagnosing this problem? 

A. Create a custom ADDM task for the period defined by the snapshots taken between 11:00 AM and 3:00 PM.
B. Analyze the latest Automatic Database Diagnostic Monitor (ADDM) report.
C. Analyze the hourly ADDM reports generated between 11:00 AM and 3:00 PM.