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多选题
Which two statements are true about the Oracle Direct Network File system (DNFS)?（）
A
It utilizes the OS file system cache.
B
A traditional NFS mount is not required when using Direct NFS.
C
Oracle Disk Manager can manage NFS on its own, without using the operating kernel NFS driver.
D
Direct NFS is available only in UNIX platforms.
E
Direct NFS can load-balance I/O traffic across multiple network adapters.
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更多 “多选题Which two statements are true about the Oracle Direct Network File system (DNFS)?（）AIt utilizes the OS file system cache.BA traditional NFS mount is not required when using Direct NFS.COracle Disk Manager can manage NFS on its own, without using the operating kernel NFS driver.DDirect NFS is available only in UNIX platforms.EDirect NFS can load-balance I/O traffic across multiple network adapters.” 相关考题
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多选题You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）ACorrupted blocks, if any, are repaired.BChecks are performed for physical corruptions.CChecks are performed for logical corruptions.DChecks are performed to confirm whether all database files exist in correct locationsEBackup sets containing both data files and archive logs are created.
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多选题You run a script that completes successfully using SQL*Plus that performs these actions: 1. Creates a multitenant container database (CDB) 2. Plugs in three pluggable databases (PDBs) 3. Shuts down the CDB instance 4. Starts up the CDB instance using STARTUP OPEN READ WRITE Which two statements are true about the outcome after running the script?（）AThe seed will be in mount state.BThe seed will be opened read-only.CThe seed will be opened read/write.DThe other PDBs will be in mount state.EThe other PDBs will be opened read-only.FThe PDBs will be opened read/write.
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单选题In 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 thresholdB
Implementing Database Resource ManagerC
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多选题An administrator account is granted the CREATE SESSION and SET CONTAINER system privileges. A multitenant container database (CDB) instant has the following parameter set: THREADED_EXECUTION = FALSE Which four statements are true about this administrator establishing connections to root in a CDB that has been opened in read only mode?（）AYou can conned as a common user by using the connect statement.BYou can connect as a local user by using the connect statement.CYou can connect by using easy connect.DYou can connect by using OS authentication.EYou can connect by using a Net Service name.FYou can connect as a local user by using the SET CONTAINER statement.
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The shutdown proceeds immediately. The shutdown proceeds as soon as all transactions in the PDBs are either committed or rolledhack.B
The shutdown proceeds as soon as all transactions in the CDB are either committed or rolled back.C
The shutdown proceeds as soon as all transactions in both the CDB and PDBs are either committed or rolled back.D
The statement results in an error because there are open PDBs.
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单选题You find this query being used in your Oracle 12c database: Which method a used by the optimizer to limit the rows being returned?（）A
A filter is added to the table query dynamically using ROWNUM to limit the rows to 20 percent of the total rowsB
All the rows are returned to the client or middle tier but only the first 20 percent are returned to the screen or the application.C
A view is created during execution and a filter on the view limits the rows to 20 percent of the total rows.D
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多选题The persistent configuration settings for RMAN have default for all parameters.Identify four RMAN commands that produce a multi-section backup.（）ABACKUP TABLESPACE SYSTEM SECTION SIZE 100M;BBACKUP AS COPY TABLESPACE SYSTEM SECTION SIZE 100M;CBACKUP ARCHIVELOG ALL SECTION SIZE 25M;DBACKUP TABLESPACE TEMP SECTION SIZE 10M;EBACKUP TABLESPACE UNDO INCLUDE CURRENT CONTROLFILE SECTION SIZE 100M;FBACKUP SPFILE SECTION SIZE 1M;GBACKUP INCREMENTAL LEVEL 0 TABLESPACE SYSAUX SECTION SIZE 100M;
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考题
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Examine the Active Session History (ASH) reports for the time period of the ETL or batch reporting runs.B
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考题
多选题Examine the following command: CREATE TABLE (prod_id number(4), Prod_name varchar2 (20), Category_id number(30), Quantity_on_hand number (3) INVISIBLE); Which three statements are true about using an invisible column in the PRODUCTS table?（）AThe %ROWTYPE attribute declarations in PL/SQL to access a row will not display the invisible column in the output.BThe DESCRIBE commands in SQL *Plus will not display the invisible column in the output.CReferential integrity constraint cannot be set on the invisible column.DThe invisible column cannot be made visible and can only be marked as unused.EA primary key constraint can be added on the invisible column.
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