单选题The database instance has the following parameter setting: OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSE REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD.You create a database user OPS$SKD, and then assign external authentication. The user OPS$SKD has theCREATE SESSION privilege.  What would you achieve by the above process()AThe database user OPS$SKD will be able to administer the database.BThe authentication detail for the database user OPS$SKD is recorded in the password file.CThe local operating system user SKD will be able to access the database instance without specifying theusername and password.DThe database user OPS$SKD has to login with the password of the local operating system user SKD toaccess the database instance.

单选题
The database instance has the following parameter setting: OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSE REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD.You create a database user OPS$SKD, and then assign external authentication. The user OPS$SKD has theCREATE SESSION privilege.  What would you achieve by the above process()
A

The database user OPS$SKD will be able to administer the database.

B

The authentication detail for the database user OPS$SKD is recorded in the password file.

C

The local operating system user SKD will be able to access the database instance without specifying theusername and password.

D

The database user OPS$SKD has to login with the password of the local operating system user SKD toaccess the database instance.


参考解析

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单选题You included the following Automatic Storage Management (ASM) initialization parameter settings in the ASM initialization parameter file:   INSTANCE_TYPE = ASM  ASM_POWER_LIMIT = 11  LARGE_POOL_SIZE = 4M   ASM_DISKGROUPS = DG1, DG2  DB_UNIQUE_NAME = +ASM   You are unable to start the ASM instance. Which initialization parameter file setting(s) is not allowing the ASM instance to start?()A only the INSTANCE_TYPE initialization parameter is set to an invalid valueB only the ASM_POWER_LIMIT initialization parameter is set to an invalid valueC only the LARGE_POOL_SIZE initialization parameter is set to an invalid valueD both the LARGE_POOL_SIZE and INSTANCE_TYPE initialization parameters are set to invalid values

单选题You are using an Automatic Storage Management (ASM) instance to manage the files of your production database. While studying the parameter file of the ASM instance, you find the following entry:  ASM_DISKSTRING = /devices/*  What could be the reason for this setting?()Ato enable the ASM instance to identify the alert log fileBto enable the ASM instance to identify the server parameter fileCto enable the ASM instance to define the locations for Oracle Managed Files (OMF)Dto enable the ASM instance to identify all disks that can be accessed by it in the /devices directory

单选题You specify a nonzero value for the MEMORY_TARGET initialization parameter, but do not set the PGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance. Which statement about the result is true?()AThe database instance starts, and Oracle sets the default value of SGA_TARGET to the same value as SGA_MAX_SIZEBThe database instance starts, and Oracle automatically tunes memory and allocates 60 percent to the SGA and 40 percent to the PGACThe database instance starts, but Automatic Memory Management is disabledDThe database instance will not start because you did not specify the PGA_AGGREGATE_TARGET or SGA_TARGET parameter

单选题Which setting enables the baselines by default in Oracle Database 11g?()A setting the STATISTICS_LEVEL parameter to TYPICALB adding filters to the Automatic Database Diagnostic Monitor (ADDM)C enabling Automated Maintenance Task using Oracle Enterprise ManagerD setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to TRUE

单选题You work as a database administrator for Certkiller .com. You started the instance using theinit.orafile. You have two control files and three redo log groups in your database. You decided to protect the database against failures by adding one more control file. Which file is the appropriate way to perform this task?()AShut down the instance, copy the control file to the third location and open the database.BAbort the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.CCopy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile, restart the instance and open the database.DShut down the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.EShut down the instance, startup in the mount state, copy the control file to the third location, modify the CONTROL_FILES parameter ininit.oraand open the database.

单选题The database instance has the following parameter setting: OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE  REMOTE_OS_AUTHENT = FALSE REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0  You have a local operating system user SKD. You create a database user OPS$SKD, and then  assignexternal authentication. The user OPS$SKD has the CREATE SESSION privilege.  What would youachieve by the above process()AThe database user OPS$SKD will be able to administer the database.BThe authentication detail for the database user OPS$SKD is recorded in the password file.CThe local operating system user SKD will be able to access the database instance without specifying the username and password.DThe database user OPS$SKD has to login with the password of the local operating system user SKD to access the database instance.