Oracle chinesedumps legit 1z0-083 Exam Download by Cosmo q254 vce pdf

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Exam Name:	Oracle Database Administration II
Exam Code:	1z0-083 Dumps
Vendor:	Oracle	Certification:	Oracle Database 19c
Questions:	286 Q&A's	Shared By:	cosmo

Question 56

Which three are true about an application container?

Options:

It can contain a single application

Two application containers can share an application seed PDB.

It must have an application root PDB.

An application PDB can belong to multiple application containers.

It must have an application seed PDB.

It can contain multiple applications.

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Question 57

Choose the best answer. Examine this output of an export from the current release of an Oracle multitenant database: $ sqlplus system/oracle . SQL> col name for a10 SQL> select name, open_mode from v$pdbs; NAME OPEN_MODE ---------------------------------------PDB$SEED READ ONLY PDB1 READ WRITE PDB2 MOUNTED SQL> exit Next you execute: $ expdp system/oracle full=y What is the outcome?

Options:

It fails because Data Pump cannot be container.

It creates a full export of the root

It creates a full export of only the used while connected to the root container and PDB1. container and all PDBs. container and all open PDBs. root container.

Discussion

Question 58

Choose two. When backing up to the Oracle Fast Recovery Area (FRA), you determine that the backup takes too long and suspect a performance bottleneck. Which two are true about diagnosing and tuning these problems?

Options:

Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.

If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then read I/O is a likely bottleneck.F

If an RMAN BACKUP VALIDATE command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.

If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.

Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.

Discussion

Question 59

Which three are true about using Database Resource Manager in an Oracle multitenant environment?

Options:

PDB-level resource plans can limit uncommitted UNDO per consumer group.

A PDB-level resource plan can limit session PGA memory.