单选题Which statement about windows and blocks is true?（）A Transaction management is block-oriented rather than window-oriented. B Forms automatically navigates to an item located in an activated window. C A window may contain multiple blocks, but each block

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单选题

Which statement about windows and blocks is true?（）

Transaction management is block-oriented rather than window-oriented.

Forms automatically navigates to an item located in an activated window.

A window may contain multiple blocks, but each block can only span one window.

A window can contain multiple canvases, and an item can be located on multiple canvases.

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第1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.

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第2题

The DB_BLOCK_CHECKING initialization parameter is set to TRUE. What would be the result of this setting on the data blocks being written to the datafiles， every time the DBWn writes？（）A、The Oracle database will check all data blocks by going through the data on each block， making sure the data is self-consistent.B、DBWn and the direct loader will calculate a checksum and store it in the cache header of every data block when writing it to disk.C、The Oracle database will check data blocks belonging to the SYSTEM tablespace only， by going through the data on each block， making sure the data is self-consistent.D、The Oracle database will check data blocks belonging to the SYSAUX tablespace only， by going through the data on each block， making sure the data is self-consistent.E、The Oracle database will check data blocks in the SYSTEM and SYSAUX tablespaces only， by going through the data on each block， making sure the data is self-consistent

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第3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.

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第4题

Which two statements are true about Block Media Recovery （BMR）？（）A、 BMR increases the Mean Time To Recover （MTTR）.B、 BMR can only be implemented using Recovery Manager （RMAN）.C、 The blocks that need to be recovered are accessible during BMR.D、 BMR cannot be performed using cumulative incremental backups.E、 The datafile must be restored if most of the blocks in the datafile are corrupt.

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第5题

You executed the following command to create a tablespace called SALES_DATA： > 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 inbitmapblocks.E、The space utilization description of the data blocks in segments is managed through free lists.MANUAL

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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.

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第7题

In the COURSE_ENROLLMENT form module, you define a master-detail relation between the COURSES_OFFERED data block and the STUDENT data block, respectively. To implement block coordination, which statement must be true?（）A、 The Enforce Primary Key property on the STUDENT block is set to Yes. B、 The Alias property on the COURSES_OFFERED block is set to Student. C、 The Copy Value from item property on the foreign key item in the STUDENT blocks is set to the primary key item of the COURSES_OFFERED block. D、 The Synchronize with item property on the foreign key item in the STUDENT block is set to the primary key item of the COURSES_OFFERED block.

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单选题Which statement about windows and blocks is true?（）A Transaction management is block-oriented rather than window-oriented. B Forms automatically navigates to an item located in an activated window. C A window may contain multiple blocks, but each block

题目

更多“单选题Which statement about windows and blocks is true?（）A Transaction management is block-oriented rather than window-oriented. B Forms automatically navigates to an item located in an activated window. C A window may contain multiple blocks, but each block”相关问题

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