多选题You decided to use Direct NFS configuration in a non-RAC Oracle installation and created the oranfstab file in /etc. Which two statements are true regarding this oranfstab file？（））AIts entries are specific to a single database.BIt contains file systems

第1题：

Which two statements are true about the rescue configuration file?（）

• A、It must include a root password
• B、It is roll back file number 50, and you can recover it by issuing rollback 50
• C、It is created by issuing request system configuration rescue save
• D、It is updated automatically when you commit

第2题：

You 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、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.

第3题：

第4题：

Which two statements about Oracle Direct Network File System (NFS) are true?（）

• A、It bypasses the OS file system cache.
• B、A separate NFS interface is required for use across Linux, UNIX, and Windows platforms.
• C、It uses the operating system kernel NFS layer for user tasks and network communication modules.
• D、File systems need not be mounted by the kernel NFS system when being served through Direct NFS.
• E、Oracle Disk Manager can manage NFS on its own, without using the operating system kernel NFS driver.

第5题：

You performed the RMAN database backup with the KEEP option. Which two statements are true regarding this backup？（）

• A、 The backup contains data files， the server parameter file，and the control file even if the control file  autobackup is disabled.
• B、 The KEEP option overrides the configured retention policy.
• C、 The backup contains only data files and archived redo log files.
• D、 The KEEP option is an attribute of an individual backup piece.

第6题：

Which two statements are true about the rescue configuration file?（）

• A、It must include a root password.
• B、It is rollback file number 50, and you can recover it by issuing rollback 50.
• C、It is created by issuing request system configuration rescue save.
• D、It is updated automatically when you commit.

第7题：

Which steps are mandatory to enable Direct NFS？（）   1. Mount all required file systems using the kernel NFS driver.  2. Create an oranfstab file containing the attributes for each NFS server to be accessed using Direct NFS.    3. Replace the ODM library libodm11.so_stub with libodm11.so.

• A、 2 and 3
• B、 1 and 3
• C、 1 and 2
• D、 1，2 and 3

第8题：

Which two statements are true about the rescue configuration file?（）

• A、It gets updated automatically when you commit.
• B、You need to create it by issuing request system configuration rescue save.
• C、It is rollback file number 50 and you can recover it by issuing rollback 50.
• D、You can load it by entering rollback rescue.

第9题：

You performed the RMAN database backup with the KEEP option.Which two statements are true about this backup?（） (Choose two)

• A、The KEEP option overrides the configured retention policy
• B、The KEEP option is an attribute of an individual backup piece
• C、The backup contains only data files and archived redo log files
• D、The backup contains data files, the server parameter file and the control file even if the control file auto backup is disabled

第10题：

You decided to use Direct NFS configuration in a non-RAC Oracle installation and created the oranfstab file in /etc. Which two statements are true regarding this oranfstab file？（））  

• A、 Its entries are specific to a single database.
• B、 It contains file systems that have been mounted by Direct NFS.
• C、 It is globally available to all Oracle 11g databases on the machine.
• D、 It contains file systems that have been mounted by the kernel NFS system.