You are a Database Administrator with WonderWeb. You use a p

题目
单选题
You are a Database Administrator with WonderWeb. You use a password file to establish connections to the Sales database located on the server. You created the password file using the following command:        ORAPWD file=d:/oracle/ora9i/orapwU01 password=admin entries=4   You erroneously deleted the password file while the database was running. You re-create the password file using the following command:   ORAPWD file=d:/oracle/ora9i/orapwU01 password=change_on_install entries=4   However, when you try to connect as the SYS user, you receive the following error:        ORA-01031: insufficient privileges   What should you do to resolve this error?()
A

 Delete the newly created password file and re-create another password file with the password admin, without shutting down the database.

B

 Enable the operating system authentication, shut down the database, disable the operating system authentication, and restart the database using the password file.

C

 Enable the operating system authentication, shut down the database, re-create the password file using the same ORAPWD command, and restart the database using the password file.

D

 Delete the newly created password file, enable operating system authentication and shut down the database. Then, re-create another password file using the same ORAPWD command and restart the database using this password file.

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相似问题和答案

第1题:

多选题
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process?()
A

open the database with the RESTRICTED option

B

open the database with the RESETLOGS option

C

recover to the required SCN only that data file in which the error occurred

D

recover all the data files to the same system change number (SCN)


正确答案: A,B
解析: 暂无解析

第2题:

多选题
Your database in running in the ARCHIVELOG mode. You issue the following command to back up datafile 2 in your database.   RMAN> COPY DATAFILE 2 TO ’D:///ORACLE/ORA90/MYNEWDB/DA2.DBF’;   Which two statements are true regarding the backup created using this command?()
A

The copy of the datafile created is stored in the RMAN repository.

B

The copy of the datafile created can be viewed using the LIST BACKUP command.

C

The copy of the datafile created using this COPY command can be placed only on the disk.

D

The copy of the datafile created is similar to the backup of the file created using the BACKUP command.

E

The copy of the datafile created can be used for recovering the database using the user-managed recovery method.


正确答案: A,D
解析: 暂无解析

第3题:

单选题
You executed the following code:   BEGIN   DBMS_SCHEDULER.SET_ATTRIBUTE  (  NAME => ’JOB_A’,   ATTRIBUTE => ’JOB_PRIORITY’,   VALUE => 7);   END;  /   After analyzing the above code, what conclusion will you draw?()
A

 The code will be executed successfully.

B

 The code will not be executed successfully because the value of the VALUE parameter must be 1, 2, or 3.

C

 The code will not be executed successfully because the value of the VALUE parameter must range between 1 and 5.

D

 The code will not be executed successfully because no SET_ATTRIBUTE procedure exists in the DBMS_SCHDULER package.


正确答案: A
解析: 暂无解析

第4题:

单选题
You are maintaining your database in Oracle10g. You find that the INDEXES index tablespace should be recovered. How will you recover the index tablespace?()
A

 by using the Flashback Database feature

B

 by using RMAN incomplete recovery

C

 by performing a user-managed incomplete recovery

D

 by dropping and re-creating the index tablespace


正确答案: D
解析: 暂无解析

第5题:

单选题
You have many users complaining about slow inserts into a large table. While investigating the reason, you find that the number of indexes on the table is high. You want to find out which indexes are not being used.  Which method would you follow to achieve this?()
A

enable index monitoring and query the DBA_OBJECTS view

B

enable index monitoring and query the DBA_INDEXES view

C

enable index monitoring and query the V$OBJECT_USAGE view

D

enable index monitoring and view the DBA_INDEXTYPE_COMMENTS view


正确答案: B
解析: 暂无解析

第6题:

单选题
Which statement is true regarding the creation of nested plans using Resource Manager?()
A

 Only one nested subplan is allowed.

B

 The plans can be nested up to four levels.

C

 Resource Manager does not support nested plans.

D

 Nested plans control only the degree of parallelism but not the CPU.

E

 Each nested plan gets a proportion of the CPU resources assigned to its parent group.


正确答案: C
解析: 暂无解析

第7题:

单选题
You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance.  Which advisory component would you refer to, in order to determine the appropriate indexes?()
A

Memory Advisor

B

Segment Advisor

C

SQL Access Advisor

D

Automatic Workload Repository (AWR)

E

Automatic Database Diagnostic Monitor (ADDM)


正确答案: D
解析: 暂无解析

第8题:

单选题
You lost the index tablespace in your database. You are not able to use tablespace point-in-time recovery on the index tablespace. What could be the reason for this?()
A

 The index tablespace contains bitmap indexes.

B

 The index tablespace contains more than one data file.

C

 The index tablespace supports only complete recovery.

D

 The index tablespace is not a dictionary-managed tablespace.

E

 There is a dependency relationship between a table and its indexes.


正确答案: B
解析: 暂无解析

第9题:

单选题
You have created a resource plan, DB_PLAN, using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan?()
A

 assign users to consumer groups

B

 set the resource plan for the instance

C

 configure a simple resource plan and specify plan directives

D

 configure a complex resource plan and specify plan directives


正确答案: B
解析: 暂无解析

第10题:

多选题
You have created a resource plan, PROD_DB_PLAN, with the following consumer groups with the respective plan directives:  Consumer group SALESwith CPU_P1as 60 and DEGREE_OF_PARALLELISMas 4.   Consumer group MARKETwith CPU_P1as 20.   Consumer group DEVwith CPU_P1as 20.   Consumer groupOTHERSwith CPU_P1as 0 and CPU_P2as 100.  Which two statements are correct in this scenario?()
A

The maximum degree of parallelism for the members of the consumer groups is 4.

B

The CPU allocation will always be equal for the consumer groups MARKET and DEV.

C

The OTHERS consumer group would get 100% of the CPU if there are unused level 1 CPU resources.

D

The SALES and MARKET consumer groups would get 100% of the CPU if there are unused level 2 CPU resources.

E

The maximum degree of parallelism for the members of the consumer group SALES is 4 with no restriction for the remaining groups.


正确答案: E,B
解析: 暂无解析

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