Which two statements are true regarding the functionality of the remap command in ASMCMD?（）A、It repairs blocks that have read disk I/O errors.B、It checks whether the alias metadata directory and the file directory are linked correctly.C、It repairs blocks

题目

Which two statements are true regarding the functionality of the remap command in ASMCMD?（）

  • A、It repairs blocks that have read disk I/O errors.
  • B、It checks whether the alias metadata directory and the file directory are linked correctly.
  • C、It repairs blocks by always reading them from the mirror copy and writing them to the original location.
  • D、It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read properly.
相似考题

1.Which two statements are true regarding the functionality of the remap command in ASMCMD?()A. It repairs blocks that have read disk I/O errors.B. It checks whether the alias metadata directory and the file directory are linked correctly.C. It repairs blocks by always reading them from the mirror copy and writing them to the original location.D. It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read properly.

2.Given that the current directory is empty, and that the user has read and write permissions, and the following:Which statement is true?()A.Compilation fails.B.The file system has a new empty directory named dir.C.The file system has a new empty directory named newDir.D.The file system has a directory named dir, containing a file f1.txt.E.The file system has a directory named newDir, containing a file f1.txt.

3.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?（）A. Corrupted blocks, if any, are repaired.B. Checks are performed for physical corruptions.C. Checks are performed for logical corruptions.D. Checks are performed to confirm whether all database files exist in correct locationsE. Backup sets containing both data files and archive logs are created.

4.Which statement is true regarding the VALIDATE DATABASE command?()A. It checks the database for intrablock corruptions only.B. It checks for block corruption in the valid backups of the database.C. It checks the database for both intrablock and interblock corruptions.D. It checks for only those corrupted blocks that are associated with data files.

参考答案和解析
正确答案:A,D
更多“Which two statements are true regarding the functionality of the remap command in ASMCMD?（）A、It repairs blocks that have read disk I/O errors.B、It checks whether the alias metadata directory and the file directory are linked correctly.C、It repairs blocks ”相关问题

  • 第1题：

    Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?（）

    • A、 The df command only counts the number of disk blocks and superblocks. 
    • B、 The df command ignores space used for inodes, gnodes, and vnodes.
    • C、 The du command does not take into account filesystem metadata. 
    • D、 The du command counts indirect blocks and superblocks in its calculations. 

    正确答案:C

  • 第2题：

    Which two are the uses of the ASM metadata backup and restore （AMBR） feature？（）

    • A、 It can be used to back up all data on ASM disks.
    • B、 It can be used to recover the damaged ASM disk group along with the data.
    • C、 It can be used to gather information about a preexisting ASM disk group with disk paths，disk name，failure groups，attributes templates，and alias directory structure.
    • D、 It can be used to re-create the ASM disk group with its attributes.

    正确答案:C,D

  • 第3题：

    Which two statements are true regarding B-tree indexs（）

    • A、The leaf blocks in the index are doubly linked.
    • B、The leaf node stores a bitmap for each key value.
    • C、The rows with NULL value in key columns also have entries in the index.
    • D、The deletion of a row from the table causes a logical deletion in index leaf block and the space becomesavailable for the new leaf entry

    正确答案:A,D

  • 第4题：

    You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays， to tape.  Which two statements are true about differential incremental backups（）

    • A、The backup performed on Sundays contains all the blocks that have ever been used in the database.
    • B、The backup performed on Sundays contains all the blocks that have changed since the last level 1backup. 
    • C、The backup performed on each working day contains all the blocks that have changed since the lastlevel 0 backup.
    • D、The backup performed on Monday contains all the blocks that have changed since the level 0 backup，and every other working day contains all the blocks that have changed since the level 1 backup.

    正确答案:A,D

  • 第5题：

    Which statement is true regarding the VALIDATE DATABASE command?（）

    • A、It checks the database for intrablock corruptions only.
    • B、It checks for block corruption in the valid backups of the database.
    • C、It checks the database for both intrablock and interblock corruptions.
    • D、It checks for only those corrupted blocks that are associated with data files.

    正确答案:A

  • 第6题：

    Which two statements are true regarding a tablespace（）

    • A、It can span multiple databases.
    • B、It can consist of multiple data files.
    • C、It can contain blocks of different sizes.
    • D、It can contain segments of different sizes.
    • E、It can contain a part of a nonpartitioned segment.

    正确答案:B,D

  • 第7题：

    单选题
    You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group ，you issued the following ASMCMD command：   ASMCMD> lsdsk -I -d DATA   Which statement is true regarding the outcome of this command？（）
    A

     The command succeeds but it retrieves only the disk names.

    B

     The command produces an error because the ASM instance is down.

    C

     The command succeeds but it shows only the status of the ASM instance.

    D

     The command succeeds and retrieves information by scanning the disk headers based on an  ASM_DISKSTRING  value.


    正确答案： B
    解析： 暂无解析

  • 第8题：

    多选题
    Which two statements are true regarding B-tree index（）
    A

    The leaf blocks in the index are doubly linked.

    B

    The leaf node stores a bitmap for each key value.

    C

    The rows with NULL value in key columns also have entries in the index.

    D

    The deletion of a row from the table causes a logical deletion in index leaf block and the space becomes available for the new leaf entry.


    正确答案： B,D
    解析： 暂无解析

  • 第9题：

    单选题
    Which statement is true regarding the VALIDATE DATABASE command?（）
    A

    It checks the database for intrablock corruptions only.

    B

    It checks for block corruption in the valid backups of the database.

    C

    It checks the database for both intrablock and interblock corruptions.

    D

    It checks for only those corrupted blocks that are associated with data files.


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    Given that the current directory is empty， and that the user has read and write privileges to the current directory， and the following： Which statement is true？（）
    A

    Compilation fails.

    B

    Nothing is added to the file system.

    C

    Only a new file is created on the file system.

    D

    Only a new directory is created on the file system.

    E

    Both a new file and a new directory are created on the file system.


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    You are managing an Oracle Database 11g instance with ASM storage. The ASM instance is down. To know the details of the disks in the DATA disk group , you issued the following ASMCMD command: ASMCMD> lsdsk -I -d DATA Which statement is true regarding the outcome of this command?（）
    A

    The command succeeds but it retrieves only the disk names.

    B

    The command produces an error because the ASM instance is down.

    C

    The command succeeds but it shows only the status of the ASM instance.

    D

    The command succeeds and retrieves information by scanning the disk headers based on an ASM_DISKSTRING value.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    多选题
    Which two statements are true regarding B-tree indexs（）
    A

    The leaf blocks in the index are doubly linked.

    B

    The leaf node stores a bitmap for each key value.

    C

    The rows with NULL value in key columns also have entries in the index.

    D

    The deletion of a row from the table causes a logical deletion in index leaf block and the space becomesavailable for the new leaf entry


    正确答案： C,B
    解析： 暂无解析

  • 第13题：

    You want to create a valid directory structure for your Java EE web application， and you want to put yourweb application into a WAR file called MyApp.war. Which two are true about the WAR file？（）

    • A、At deploy time， Java EE containers add a directory called META-INF directly into the MyApp directory.
    • B、At deploy time， Java EE containers add a file called MANIFEST.MF directly into the MyApp directory.
    • C、It can instruct your Java EE container to verify， at deploy time， whether you have properly configured your application’s classes.
    • D、At deploy time， Java EE containers add a directory call META-WAR directly into the MyApp directory.

    正确答案:A,C

  • 第14题：

    On your Oracle 12c database, you invoked SQL *Loader to load data into the EMPLOYEES table in the HR schema by issuing the following command: $> sqlldr hr/hr@pdb table=employees Which two statements are true regarding the command?（）

    • A、It succeeds with default settings if the EMPLOYEES table belonging to HR is already defined in the database.
    • B、It fails because no SQL *Loader data file location is specified.
    • C、It fails if the HR user does not have the CREATE ANY DIRECTORY privilege.
    • D、It fails because no SQL *Loader control file location is specified.

    正确答案:A,C

  • 第15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?（）

    • A、Corrupted blocks, if any, are repaired.
    • B、Checks are performed for physical corruptions.
    • C、Checks are performed for logical corruptions.
    • D、Checks are performed to confirm whether all database files exist in correct locations
    • E、Backup sets containing both data files and archive logs are created.

    正确答案:B,D

  • 第16题：

    Consider the following scenario： You have a directory， data， under the disk group tdgroupA. You want to create an alias for one of the data files and you execute the following command： ALTER DISKGROUP tdgroupA  ADD ALIAS ’+tdgroupA/data/datafile.dbf’  FOR ’+tdgroupA.231.45678’；  Which task would be accomplished by the command？（）

    • A、The command drops the file +tdgroupA·231.45678.
    • B、The command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.
    • C、The command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.
    • D、The command creates an alias， datafile.dbf， and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.
    • E、The command creates a file， datafile.dbf， in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.

    正确答案:D

  • 第17题：

    You want to perform the following operations for the DATA ASM disk group： -Verify the consistency of the disk.  -Cross-check all the file extent maps and allocation tables for consistency. check whether the alias metadata directory and file directory are linked correctly.  -Check that ASM metadata directories do not have unreachable allocated blocks.   Which command accomplishes these tasks（）？

    • A、 ALTER DISKGROUP data CHECK
    • B、 ALTER DISKGROUP data CHECK DISK
    • C、 ALTER DISKGROUP data CHECK FILE
    • D、 ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1

    正确答案:A

  • 第18题：

    Which two statements are true regarding B-tree index（）

    • A、The leaf blocks in the index are doubly linked.
    • B、The leaf node stores a bitmap for each key value.
    • C、The rows with NULL value in key columns also have entries in the index.
    • D、The deletion of a row from the table causes a logical deletion in index leaf block and the space becomes available for the new leaf entry.

    正确答案:A,D

  • 第19题：

    多选题
    On your Oracle 12c database, you invoked SQL *Loader to load data into the EMPLOYEES table in the HR schema by issuing the following command: $> sqlldr hr/hr@pdb table=employees Which two statements are true regarding the command?（）
    A

    It succeeds with default settings if the EMPLOYEES table belonging to HR is already defined in the database.

    B

    It fails because no SQL *Loader data file location is specified.

    C

    It fails if the HR user does not have the CREATE ANY DIRECTORY privilege.

    D

    It fails because no SQL *Loader control file location is specified.


    正确答案： C,B
    解析： 暂无解析

  • 第20题：

    多选题
    On your Oracle 12c database, you invoked SQL *Loader to load data into the EMPLOYEES table in the HR schema by issuing the following command: $> sqlldr hr/hr@pdb table=employees Which two statements are true regarding the command?（）
    A

    It succeeds with default settings if the EMPLOYEES table belonging to HR is already defined in the database.

    B

    It fails because no SQL *Loader data file location is specified.

    C

    It fails if the HR user does not have the CREATE ANY DIRECTORY privilege.

    D

    It fails because no SQL *Loader control file location is specified.


    正确答案： D,B
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?（）
    A

     The df command only counts the number of disk blocks and superblocks. 

    B

     The df command ignores space used for inodes, gnodes, and vnodes.

    C

     The du command does not take into account filesystem metadata. 

    D

     The du command counts indirect blocks and superblocks in its calculations. 


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    You want to perform the following operations for the DATA ASM disk group： -Verify the consistency of the disk.  -Cross-check all the file extent maps and allocation tables for consistency. check whether the alias metadata directory and file directory are linked correctly.  -Check that ASM metadata directories do not have unreachable allocated blocks.   Which command accomplishes these tasks（）？
    A

     ALTER DISKGROUP data CHECK

    B

     ALTER DISKGROUP data CHECK DISK

    C

     ALTER DISKGROUP data CHECK FILE

    D

     ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Consider the following scenario： You have a directory， data， under the disk group tdgroupA. You want to create an alias for one of the data files and you execute the following command： ALTER DISKGROUP tdgroupA  ADD ALIAS ’+tdgroupA/data/datafile.dbf’  FOR ’+tdgroupA.231.45678’；  Which task would be accomplished by the command？（）
    A

    The command drops the file +tdgroupA·231.45678.

    B

    The command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.

    C

    The command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.

    D

    The command creates an alias， datafile.dbf， and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.

    E

    The command creates a file， datafile.dbf， in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.


    正确答案： B
    解析： 暂无解析

相关内容