Which three are located by using environment variables? (Choose three.)

A. the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files.

B. the location of Oracle Net Services configuration files

C. the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup

D. default directories for temporary files used by temporary tablespaces

E. the temporary disk space used by Oracle Installer during installation

F. the maximum number of database files that can be opened by a database instance

Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor? (Choose two.)

A. Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.

B. A failure can be closed only when it has been repaired.

C. Data Recovery Advisor can be used if a database is closed.

D. The Data Recovery Advisor CHANGE FAILURE command can be used only to change failure priorities.

E. Data Recovery Advisor can proactively check for failures.

For which two tasks can you use the DBMS_PDB.DESCRIBE procedure? (Choose two).

A. to generate an XML metadata file that describes a non-CDB Oracle 12c database so that it can be plugged in as a PDB

B. to generate an XML metadata file from any unplugged PDB

C. to determine whether an XML file describes a PDB that can be plugged into the CDB in which you run the procedure

D. to generate a . pdb archive file for any PDB in the current CDB

E. to generate an XML metadata file that describes the current plugged-in PDB

Which two are true about backup set compression using RMAN default compression? (Choose two.)

A. Compressed backups can be written only to media.

B. Binary compression adds CPU overhead to backup operations.

C. Unused blocks below the high water mark are backed up.

D. Compressed backups cannot have a section size defined.

E. Compression can be done only for locally managed tablespaces.

Which are three of the steps taken by Database Configuration Assistant (DBCA) to clone a remote pluggable database (PBD) starting from Oracle 19c? (Choose three.)

A. creating a database link from CDB$ROOT in the local database to the PDB in the remote system that is to be cloned

B. creating a database link from CDB$ROOT in the local database to CDB$ROOT in the remote system that is to be cloned

C. creating a new empty PDB in the local database from PDB$SEED

D. creating a database link from CDB$ROOT in the remote database to be cloned to CDB$ROOT in the local database

E. automatically dropping the database link to the remote database if it already exists

F. creating a database link from CDB$ROOT in the remote database to the PDB in the local database

G. opening the cloned PDB