单选题which one of the following accurately describes field names?（）A they must be unique in a database  B they can only be used once in a view  C they can only used once on each form  D they can be used mulriple times on a form 

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第3题：

What is the use of an "all configuration" backup in Cisco UCS？（）

• A、 Can be used to migrate from a 6120 to a 6140 and retain the same service profiles
• B、 Can only be used on the fabric interconnect on which it was created
• C、 Can be used to migrate from a 6120 to 6140 and retain system IP addresses and cluster information
• D、 Can be used to match firmware versions between 6120 and 6140 during a migration

正确答案:A

第4题：

which one of the following best where layer can be used?（）

• A、form 
• B、page 
• C、subform 
• D、all of the above

正确答案:B

第5题：

which one of the following types of actions can be used on unopened doc?（）

• A、 form action 
• B、 view action 
• C、 hotspot action 
• D、 db action

正确答案:B

第6题：

Which two statements are true about the Automatic Diagnostic Repository （ADR）？（） 

• A、 The ADR base keeps all diagnostic information in binary format
• B、 SQL*Plus provides the ADRI script， which can be used to work with ADR
• C、 The ADR can be used for problem diagnosis only when the database is open
• D、 The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to null
• E、 The ADR can be used for problem diagnosis even when the database instance is down
• F、 The ADR base is shared across multiple instances

正确答案:E,F

第7题：

What is true about sequences? （）

• A、Once created, a sequence belongs to a specific schema.
• B、Once created, a sequence is linked to a specific table.
• C、Once created, a sequence is automatically available to all users.
• D、Only the DBA can control which sequence is used by a certain table.
• E、Once created, a sequence is automatically used in all INSERT and UPDATE statements.

正确答案:A

第8题：

Which two statements are true about the Automatic Diagnostic Repository (ADR)?（） (Choose two.)

• A、The ADR base keeps all diagnostic information in binary format
• B、SQL*Plus provides the ADRI script, which can be used to work with ADR
• C、The ADR can be used for problem diagnosis only when the database is open
• D、The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to null
• E、The ADR can be used for problem diagnosis even when the database instance is down
• F、The ADR base is shared across multiple instances

正确答案:E,F

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第14题：

Which of the following constraint types can be used to ensure the value of an INTEGER column references only positive values?（）

• A、Unique
• B、Check
• C、Referential
• D、Informational

正确答案:B

第15题：

Which of the following statements about a Sales Catalog is TRUE？（）

• A、A store can only have one sales catalog.
• B、A sales catalog is used to bundle similar products.
• C、A sales catalog may be used to place a product in more than one category.
• D、Every store must have a sales catalog.

正确答案:C

第16题：

A user copied files from a CD and now the files can only be opened as read-only. Which of the following utilities can be used to allow the user the ability to edit the files?（）

• A、EDIT
• B、CHMOD
• C、ATTRIB
• D、CONVERT

正确答案:C

第17题：

which one of the following accurately describes field names?（）

• A、they must be unique in a database  
• B、they can only be used once in a view  
• C、they can only used once on each form  
• D、they can be used mulriple times on a form 

正确答案:C

第18题：

Which two statements are true about WHERE and HAVING clauses? （）

• A、A WHERE clause can be used to restrict both rows and groups.
• B、A WHERE clause can be used to restrict rows only.
• C、A HAVING clause can be used to restrict both rows and groups.
• D、A HAVING clause can be used to restrict groups only.
• E、A WHERE clause CANNOT be used in a query of the query uses a HAVING clause.
• F、A HAVING clause CANNOT be used in subqueries.

正确答案:B,D

第19题：

You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation？（）

• A、 The backup as copy can only be taken to disk
• B、 The backup as copy can only be taken to tape
• C、 Backup can be performed only when the instance is shutdown
• D、 Backup will constitute all used and unused blocks in the database

正确答案:A,D

第20题：

You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?（） (Choose two).

• A、The backup as copy can only be taken to disk
• B、The backup as copy can only be taken to tape
• C、Backup can be performed only when the instance is shutdown
• D、Backup will constitute all used and unused blocks in the database

正确答案:A,D

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