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多选题Which two statements about bigfile tablespaces are true？ （）AThe bigfile tablespace have only one data file.BThe segment space management is automatic.CThe extent management is dictionary managed.DThe database can have only one bigfile tablespace.EThe b

题目
多选题
Which two statements about bigfile tablespaces are true？ （）
A

The bigfile tablespace have only one data file.

B

The segment space management is automatic.

C

The extent management is dictionary managed.

D

The database can have only one bigfile tablespace.

E

The bigfile tablespace can be converted to a smallfile tablespace.

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相似问题和答案

第1题：

You want the size of the tablespace to increase when it is full. Which option would you use？（）

  • A、use automatic extent allocation
  • B、disable threshold for the tablespace
  • C、use freelists to manage the free space
  • D、use automatic segment space management
  • E、create the tablespace as a bigfile tablespace
  • F、use the RESIZE clause while creating the tablespace
  • G、enable AUTOEXTEND for at least one of the data files in the tablespace

正确答案:G

第2题：

You are creating a locally managed tablespace to meet the following requirements： All the extents should be of the same size.  The data should be spread across two data files.  A bitmap should be used to record the free space within the allocated extents. Which three options would you choose？（）

  • A、set PCTFREE and PCTUSED to 50
  • B、specify extent allocation as Uniform
  • C、specify extent allocation as Automatic
  • D、create the tablespace as bigfile tablespace
  • E、create the tablespace as smallfile tablespace
  • F、set segment space management to Automatic
  • G、use the RESIZE clause while creating the tablespace

正确答案:B,E,F

第3题：

Which two statements about the SQL Management Base (SMB) are true?()

A. It contains only SQL profiles generated by SQL Tuning Advisor.

B. It stores plans generated by the optimizer using a stored outline.

C. It is part of the data dictionary and stored in the SYSAUX tablespace.

D. It is part of the data dictionary and stored in the SYSTEM tablespace.

E. It contains the statement log, the plan history, plan baselines, and SQL profiles.


参考答案：C, E

第4题：

You executed the following command to create a tablespace called SALES_DATA： SQL> CREATE TABLESPACE sales_data DATAFILE SIZE 100M SEGMENT SPACE MANAGEMENT AUTO； Which two statements are true about the SALES_DATA tablespace（）

  • A、The database automatically determines the extent-sizing policy for the tablespace.
  • B、The segments are automatically shrunk when the contents are removed from them.
  • C、The allocation of extents within the tablespace is managed through the dictionary tables.
  • D、The space utilization description of the data blocks in segments is recorded in bitmap blocks.
  • E、The space utilization description of the data blocks in segments is managed through free lists.

正确答案:A,D

第5题：

Which two statements about bigfile tablespaces are true？ （）

  • A、The bigfile tablespace have only one data file.
  • B、The segment space management is automatic.
  • C、The extent management is dictionary managed.
  • D、The database can have only one bigfile tablespace.
  • E、The bigfile tablespace can be converted to a smallfile tablespace.

正确答案:A,B

第6题：

Which two statements are true regarding undo tablespaces（）

  • A、The database can have more than one undo tablespace.
  • B、The UNDO_TABLESPACE parameter is valid in both automatic andmanualundo management.
  • C、Undo segments automatically grow and shrink as needed， acting as circular storage buffer for their assigned transactions.
  • D、An undotablespaceis automatically created if the UNDO_TABLESPACEparameter is not set and the UNDO_MANAGEMENT parameter is set to AUTO during the database instance start up.

正确答案:A,C

第7题：

Which two statements about the SQL Management Base (SMB) are true? （）(Choose two.)

  • A、It contains only SQL profiles generated by SQL Tuning Advisor.
  • B、It stores plans generated by the optimizer using a stored outline.
  • C、It is part of the data dictionary and stored in the SYSAUX tablespace.
  • D、It is part of the data dictionary and stored in the SYSTEM tablespace.
  • E、It contains the statement log, the plan history, plan baselines, and SQL profiles.

正确答案:C,E

第8题：

Which two statements correctly describe the relation between a data file and the logical databasestructures（）

  • A、An extent cannot spread across data files.
  • B、A segment cannot spread across data files.
  • C、A data file can belong to only one tablespace.
  • D、A data file can have only one segment created in it.
  • E、A data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.

正确答案:A,C

第9题：

Which statements are true about logical structures of the Oracle database（）

  • A、Each segment contains one or more extents.
  • B、Multiple tablespaces can share a single data file
  • C、A data block is the smallest unit of input/output （I/O） in data files.
  • D、It is possible to have tablespaces of different block sizes in a database.
  • E、Each data block in the database always corresponds to one operating system block

正确答案:A,C,D

第10题：

Examine the commands executed in a DBA session：SQL> CREATE BIGFILE TABLESPACE MRKT 2 DATAFILE ’/u01/app/oracle/oradata/orcl/mrkt.dbf’ size 10M LOGGING 3 EXTENT MANAGEMENT LOCALSEGMENT SPACE MANAGEMENT AUTO； Tablespace created. SQL> ALTER DATABASE DEFAULT TABLESPACE MRKT； Database altered.  Which two statements are trueregarding the MRKT tablespace（）

  • A、No more data files can be added to the tablespace.
  • B、Segment space is managed by free lists in the tablespace.
  • C、A user created without being assigned a default tablespace uses this tablespace.
  • D、The tablespace can be dropped with the current setting with segments present in it

正确答案:A,C

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