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Quiz

1Z0-062 Oracle Admin Exam

Abdullah Albyati 14 perguntas

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Perguntas do quiz (14)

  1. 1Which statement is true about the Log Writer process?
    1. AA. It writes when it receives a signal from the checkpoint process (CKPT).
    2. BB. It writes concurrently to all members of multiplexed redo log groups.
    3. CC. It writes after the Database Writer process writes dirty buffers to disk.
    4. DD. It writes when a user commits a transaction.
  2. 2Which two tasks can be performed on an external table? (Choose two.)
    1. AA. partitioning the table
    2. BB. creating an invisible index
    3. CC. updating the table by using an update statement
    4. DD. creating a public synonym
    5. EE. creating a view
  3. 3Which action takes place when a file checkpoint occurs?
    1. AA. The checkpoint position is advanced in the checkpoint queue.
    2. BB. All buffers for a checkpointed file that were modified before a specific SCN are written to disk by DBWn and the SCN is stored in the control file.
    3. CC. The Database Writer process (DBWn) writes all dirty buffers in the buffer cache to data files.
    4. DD. The Log Writer process (LGWR) writes all redo entries in the log buffer to online redo log files.
  4. 4Examine the query and its output:

    What might have caused three of the alerts to disappear?
    Imagem da pergunta 4
    1. AA. The threshold alerts were cleared and transferred to DBA_ALERT_HISTORY.
    2. BB. An Automatic Workload Repository (AWR) snapshot was taken before the execution of the second query.
    3. CC. An Automatic Database Diagnostic Monitor (ADOM) report was generated before the execution of the second query.
    4. DD. The database instance was restarted before the execution of the second query.
  5. 5Examine the current value for the following parameters in your database instance:

    SGA_MAX_SIZE = 1024M -

    SGA_TARGET = 700M -

    DB_8K_CACHE_SIZE = 124M -

    LOG_BUFFER = 200M -
    You issue the following command to increase the value of DB_8K_CACHE_SIZE:
    SQL> ALTER SYSTEM SET DB_8K_CACHE_SIZE=140M;
    Which statement is true?
    1. AA. It fails because the DB_8K_CACHE_SIZE parameter cannot be changed dynamically.
    2. BB. It succeeds only if memory is available from the autotuned components if SGA.
    3. CC. It fails because an increase in DB_8K_CACHE_SIZE cannot be accommodated within SGA_TARGET.
    4. DD. It fails because an increase in DB_8K_CACHE_SIZE cannot be accommodated within SGA_MAX_SIZE.
  6. 6Which three features work together, to allow a SQL statement to have different cursors for the same statement based on different selectivity ranges? (Choose three.)
    1. AA. Bind Variable Peeking
    2. BB. SQL Plan Baselines
    3. CC. Adaptive Cursor Sharing
    4. DD. Bind variable used in a SQL statement
    5. EE. Literals in a SQL statement
  7. 7You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.
    Which method or feature should you use?
    1. AA. Compare Period ADDM report
    2. BB. AWR Compare Period report
    3. CC. Active Session History (ASH) report
    4. DD. Taking a new snapshot and comparing it with a preserved snapshot
  8. 8Which three statements are true about Automatic Workload Repository (AWR)? (Choose three.)
    1. AA. All AWR tables belong to the SYSTEM schema.
    2. BB. The AWR data is stored in memory and in the database.
    3. CC. The snapshots collected by AWR are used by the self-tuning components in the database
    4. DD. AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.
    5. EE. AWR contains system wide tracing and logging information.
  9. 9Examine the contents of SQL loader control file:

    Which three statements are true regarding the SQL* Loader operation performed using the control file? (Choose three.)
    Imagem da pergunta 9
    1. AA. An EMP table is created if a table does not exist. Otherwise, if the EMP table is appended with the loaded data.
    2. BB. The SQL* Loader data file myfile1.dat has the column names for the EMP table.
    3. CC. The SQL* Loader operation fails because no record terminators are specified.
    4. DD. Field names should be the first line in the both the SQL* Loader data files.
    5. EE. The SQL* Loader operation assumes that the file must be a stream record format file with the normal carriage return string as the record terminator.
  10. 10In your multitenant container database (CDB) containing pluggable database (PDBs), you granted the CREATE TABLE privilege to the common user C # #
    A_ADMIN in root and all PDBs. You execute the following command from the root container:
    SQL > REVOKE create table FROM C # # A_ADMIN;
    What is the result?
    1. AA. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root only.
    2. BB. It fails and reports an error because the CONTAINER=ALL clause is not used.
    3. CC. It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.
    4. DD. It fails and reports an error because the CONTAINER=CURRENT clause is not used.
    5. EE. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in all PDBs.

Informações

Descrição
This question set is used for the confusing, stupid questions that the Oracle DBA exam has. I mean seriously this test is stupid DON'T BECOME ORACLE DBA
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English
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oracle1z0-062
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