NEW 1Z0-083 EXAM DUMPS - 1Z0-083 PRACTICE TEST ONLINE

New 1Z0-083 Exam Dumps - 1Z0-083 Practice Test Online

New 1Z0-083 Exam Dumps - 1Z0-083 Practice Test Online

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Oracle Database Administration II Sample Questions (Q69-Q74):

NEW QUESTION # 69
Which three are located by using environment variables? (Choose three.)

  • A. default directories for temporary files used by temporary tablespaces
  • B. the temporary disk space used by Oracle Installer during installation
  • C. the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup
  • D. the maximum number of database files that can be opened by a database instance
  • E. the location of Oracle Net Services configuration files
  • F. the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files.

Answer: A,D,E


NEW QUESTION # 70
Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)

  • A. The BACKUP DATABASE PLUS ARCHIVELOG command will back up archive logs when RMAN is connected to a PDB.
  • B. The BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT.
  • C. Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.
  • D. The BACKUP DATABASE command will create a pluggable database (PDB) backup when RMAN is connected to a PDB.
  • E. SPFILE backups can be created while connected to an application root PDB.

Answer: B,D

Explanation:
E is correct
tested: backup pluggable database "cdb$root". the quotes due to the $ symbol. it backups only the root container files (no pdb datafiles).
tested CD: both incorrect
Tested b: correct
A is not correct due to the "must". you can connect to cdb and distinguish between tbs with same name in different pdbs with qualifying RMAN> BACKUP TABLESPACE pdb1:system, pdb1:sysaux, pdb1:users, pdb2:system;


NEW QUESTION # 71
Which three are true about Oracle pluggable databases (PDBs)?

  • A. An unplugged PDB can be plugged into multiple CDBs simultaneously by sharing data files.
  • B. A PDB in a remote CDB can be accessed transparently there by aggregating results from local and remote PDBs.
  • C. A PDB unplugged from a container database (CDB) can be plugged into a different CDB without altering any of its schemas.
  • D. A PDB created from PDB$SEED must be set to READ ONLY after loading data.
  • E. A PDB created from PDB$SEED must be set to READ WRITE after loading data.
  • F. A PDB can be plugged into a CDB only if both are of the same Oracle Database release.
  • G. A non-CDB can be converted into a PDB.

Answer: B,C,G


NEW QUESTION # 72
Which two statements are true when row archival management is enabled?

  • A. The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only.
  • B. The ORA_ARCHIVE_STATE column is updated automatically by the Oracle Server based on activity tracking columns, to Indicate that a row is no longer considered active. Correct
  • C. The ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns, to indicate that a row is no longer considered active.
  • D. The ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query.
  • E. The ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter.

Answer: C,D


NEW QUESTION # 73
Which two are true about Oracle instance recovery? (Choose two.)

  • A. Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.
  • B. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.
  • C. Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).
  • D. Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.
  • E. Recovery begins from the beginning of the CURRENT redo log group.
  • F. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.

Answer: B,C

Explanation:
E: Instance recovery is the process of applying records in the online redo log to data files to reconstruct changes made after the most recent checkpoint. Instance recovery occurs automatically when an administrator attempts to open a database that was previously shut down inconsistently.
..
The checkpoint process (CKPT) is responsible for writing checkpoints to the data file headers and control file.
F: Oracle Database can roll back multiple transactions simultaneously as needed. All transactions that were active at the time of failure are marked as terminated. Instead of waiting for the SMON process to roll back terminated transactions, new transactions can roll back individual blocks themselves to obtain the required data.
https://docs.oracle.com/cd/E25178_01/server.1111/e25789/startup.htm


NEW QUESTION # 74
......

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