CMS专题

单选题Which kind of non-sourced UDF can be created so that it only returns a single value?（）A RowB TableC ScalarD Column

题目
单选题
Which kind of non-sourced UDF can be created so that it only returns a single value?（）
A

Row

B

Table

C

Scalar

D

Column

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相似问题和答案

第1题：

Which kind of non－sourced UDF can be created so that it only returns a single value?()

A.Row

B.Table

C.Scalar

D.Column


参考答案：C

第2题：

When devices are in cluster mode， which new interfaces are created？（）

  • A、No new interface is created.
  • B、Only the st interface is created.
  • C、fxp1， fab0， and fab1 are created.
  • D、st，fxp1，reth，fab0，and fab1 are created.

正确答案:C

第3题：

Which kind of activity can be considered as ‘moderate exercises’? ()

A. swimming

B. walking

C. jogging

D. gardening


参考答案：ABCD

第4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5题：

Which two statements about views are true? （）

  • A、A view can be created as read only.
  • B、A view can be created as a join on two or more tables.
  • C、A view cannot have an ORDER BY clause in the SELECT statement.
  • D、A view cannot be created with a GROUP BY clause in the SELECT statement.
  • E、A view must have aliases defined for the column names in the SELECT statement.

正确答案:A,B

第6题：

Preventive maintenance______.

A.should not be carried out during the watches

B.can only be carried out in port

C.is a kind of maintenances carried out prior to the occurrence

D.is a kind of maintenances carried out after the occurrence


正确答案：C

第7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8题：

Given that the current directory is empty, and that the user has read and write privileges to the current, 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.


参考答案：B

第9题：

Which two statements are true about the Cisco Classic （CBAC） IOS Firewall set？（）

  • A、It can be used to block bulk encryption attacks
  • B、It can be used to protect against denial of service attacks
  • C、Traffic originating from the router is considered trusted， so it is not inspected
  • D、Based upon the custom firewall rules， an ACL entry is statically created and added to theexisting ACL permanently
  • E、Temporary ACL entries that allow selected traffic to pass are created and persist for theduration of the communication session

正确答案:B,E

第10题：

Which two statements about static NAT are true？（）

  • A、Static NAT can only be used with destination NAT.
  • B、Static NAT rules take precedence over overlapping dynamic NAT rules.
  • C、Dynamic NAT rules take precedence over overlapping static NAT rules.
  • D、A reverse mapping is automatically created.

正确答案:B,D

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