Oracle 1Z0-053 Online Practice Questions and Exam Preparation

Oracle 1Z0-053 Online Questions & Answers

• Question 571:

  Which statement describes the scenario that must have produced this warning?

  A. The CHANGE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository(ADR).
  B. The VALIDATE DATABASE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR).
  C. The ADVISE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE.
  D. The RECOVER command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE command was executed.
  C. The ADVISE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE.

• Question 572:

  Identify three key features of ASM. (Choose three.)

  A. file striping
  B. allocation unit mirroring
  C. automatic disk rebalancing
  D. automatic file size increment
  E. automatic undo management
  A. file striping
  B. allocation unit mirroring
  C. automatic disk rebalancing

• Question 573:

  Which three are the valid statements in relation to SQL plan baselines? (Choose three.)

  A. The plans can be manually loaded to the SQL plan baseline.
  B. The plans in the SQL plan baseline are verified and accepted plans.
  C. The plans generated for every SQL statement are stored in the SQL plan baseline by default.
  D. The plan baselines are stored temporarily in the memory as long as the database instance is running.
  E. For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.
  A. The plans can be manually loaded to the SQL plan baseline.
  B. The plans in the SQL plan baseline are verified and accepted plans.
  E. For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.

• Question 574:

  Which of the following calendaring syntax expressions would evaluate to the last day of every month?

  A. FREQ = MONTHLY; BYMONTHDAY = 31
  B. FREQ = MONTHLY; BYMONTHDAY = -1
  C. FREQ = DAILY; BYDAY = -1
  D. FREQ = MONTHLY; BYDAY = 31
  E. FREQ = DAILY; BYMONTHDAY = LAST_DAY
  B. FREQ = MONTHLY; BYMONTHDAY = -1

• Question 575:

  Which method would you use to undo the changes made by a particular transaction without affecting the made by other transactions?

  A. Point-in-time recovery
  B. Execute the ROLLBACK command with transaction number
  C. Flashback the database to before the transaction was committed
  D. Determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery
  D. Determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery

• Question 576:

  You executed the following query:

  SELECT oldest_flashback_scn, oldest_flashback_time

  FROM V$FLASHBACK_DATABASE_LOG;

  Considering that all the redo logs are available, what information can you derive from the output of the preceding query?

  A. The time when the last flashback operation in your database was performed
  B. The time when the first flashback operation in your database was performed
  C. The approximate time and the lowest system change number (SCN) to which you can flash back your database
  D. The system change number (SCN) and the time when the Flashback Database was enabled in the database instance
  C. The approximate time and the lowest system change number (SCN) to which you can flash back your database

• Question 577:

  You executed the following commands in an RMAN session for your database instance that has failures:

  RMAN> LIST FAILURE;

  After some time, you executed the following command in the same session:

  RMAN> ADVISE FAILURE;

  But there are new failures recorded in the Automatic Diagnostic Repository (ADR) after the execution of the last LIST FAILURE command.

  Which statement is true for the above ADVISE FAILURE command in this scenario?

  A. It produces a warning for new failures before advising for CRITICAL and HIGH failures.
  B. It ignores new failures and considers the failures listed in the last LIST FAILURE command only.
  C. It produces an error with recommendation to run the LIST FAILURE command before the ADVISE FAILURE command.
  D. It produces advice only for new failures and the failures listed in the last LIST FAILURE command are ignored.
  A. It produces a warning for new failures before advising for CRITICAL and HIGH failures.

• Question 578:

  Which of the following can be used in conjunction with a Flashback Versions Query to filter the results? (Choose all that apply.)

  A. A range of SCN values
  B. A list of SCN values
  C. A starting and ending timestamp
  D. Minimum and maximum sequence values
  E. A list of sequence values
  A. A range of SCN values
  C. A starting and ending timestamp

• Question 579:

  Compressed backups work with which of the following commands?

  A. copy as backup
  B. backup as copy
  C. backup
  D. copy
  C. backup

• Question 580:

  You have applications that have frequently executed queries, and produce small and static result sets. You configure the sqlnet.ora file in the client machine to set a nonzero value for the OCI_RESULT_CACHE_MAX_SIZE parameter.

  What is the purpose of this configuration?

  A. to avoid round trips to the server by enabling caching of query results in client memory
  B. to improve performance by storing a copy of the data from the private SQL area of the PGA
  C. to enhance the query performance by creating a cache in the client memory for sorting operations
  D. to avoid the storing of query plans and results in the server by creating a cache in the client memory
  A. to avoid round trips to the server by enabling caching of query results in client memory