Which three statements are true about Oracle Data Pump export and import operations、

试卷相关题目

• 1Identify two situations in which the alert log file is updated.

  A.Running a query on a table returns ORA-600: Internal Error.

  B.Inserting a value into a table returns ORA-01722: invalid number.

  C.Creating a table returns ORA-00955: name us already in used by an existing objects.

  D.Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.

  E.Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file # 14, block # 50) error.

  开始考试点击查看答案
• 2You Execute the Following command to create a password file in the database server:$ orapwd file = ‘+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12’Which two statements are true about the password file、

  A.It records the usernames and passwords of users when granted the DBA role.

  B.It contains the usernames and passwords of users for whom auditing is enabled.

  C.Is used by Oracle to authenticate users for remote database administration.

  D.C.Is used by Oracle to authenticate users for remote database administration.D.It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.

  E.It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.

  开始考试点击查看答案
• 3In your database, you want to ensure that idle sessions that are blocking active are automatically terminated after a specified period of time.How would you accomplish this、

  A.Setting a metric threshold

  B.Implementing Database Resource Manager

  C.Enabling resumable timeout for user sessions

  D.Decreasing the value of the IDLE_TIME resource limit in the default profile

  开始考试点击查看答案
• 4You want to flash back a test database by five hours.You issue this command:SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);Which two statements are true about this flashback scenario、

  A.The database must have multiplexed redo logs for the flashback to succeed.

  B.The database must be MOUNTED for the flashback to succeed.

  C.The database must use block change tracking for the flashback to succee

  D.B.The database must be MOUNTED for the flashback to succeed.C.The database must use block change tracking for the flashback to succeed.D.The database must be opened in restricted mode for the flashback to succeed.

  E.The database must be opened with the RESETLOGS option after the flashback is complete.

  F.The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.

  开始考试点击查看答案
• 5Which three statements are true about SQL plan directives、

  A.They are tied to a specific statement or SQL ID.

  B.They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.

  C.They are used to gather only missing statistics.

  D.B.They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.C.They are used to gather only missing statistics.D.They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.

  E.They instruct the optimizer to create only column group statistics.

  F.Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.

  开始考试点击查看答案
• 6In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20.Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement、

  A.The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

  B.Setting the target tablespace to read-only

  C.The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

  D.Setting the target tablespace offline

  E.The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

  开始考试点击查看答案
• 7Which three statements are true about Flashback Database、

  A.Flashback logs are written sequentially, and are archived.

  B.Flashback Database uses a restored control file to recover a database.

  C.The Oracle database automatically creates, deletes, and resides flashback logs in the Fast Recovery Area.

  D.B.Flashback Database uses a restored control file to recover a databas

  E.C.The Oracle database automatically creates, deletes, and resides flashback logs in the Fast Recovery Area.D.Flashback Database can recover a database to the state that it was in before a reset logs operation.E.Flashback Database can recover a data file that was dropped during the span of time of the flashback.

  F.Flashback logs are used to restore to the blocks' before images, and then the redo data may be used to roll forward to the desired flashback time.

  开始考试点击查看答案
• 8Which statement is true about Enterprise Manager (EM) express in Oracle Database 12c、

  A.By default, EM express is available for a database after database creation.

  B.You can use EM express to manage multiple databases running on the same server.

  C.You can perform basic administrative tasks for pluggable databases by using the EM express interface.

  D.You cannot start up or shut down a database Instance by using EM express.

  E.You can create and configure pluggable databases by using EM express.

  开始考试点击查看答案
• 9Examine the following command;ALTER SYSTEM SET enable_ddl_logging = TRUE;Which statement is true、

  A.Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.

  B.All DDL commands are logged in the alert log file.

  C.All DDL commands are logged in a different log file that contains DDL statements and their execution dates.

  D.Only DDL commands that resulted in the creation of new segments are logged.

  E.All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

  开始考试点击查看答案
• 10In which two scenarios do you use SQL* Loader to load data、

  A.Transform the data while it is being loaded into the database.

  B.Use transparent parallel processing without having to split the external data first.

  C.Load data into multiple tables during the same load statement.

  D.Generate unique sequential key values in specified columns.

  开始考试点击查看答案