Which of the following datatypes are used in situations wher

题目
单选题
Which of the following datatypes are used in situations where you want an ordered set of data elements, where every element is the same datatype, and where you predefine the number of elements that appear in the set?()
A

REF 

B

TABLE 

C

CLOB 

D

VARRAY

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相似问题和答案

第1题:

In which of the following situations should correlation names be used?()

  • A、A table referenced in the FROM clause has no indexed column.
  • B、The table referenced in the FROM clause has more than 200 columns.
  • C、Two or more tables in the FROM clause have identical column names.
  • D、The FROM clause contains two or more tables in the SELECT statement.

正确答案:C

第2题:

Which of the following protocols is used by thin clients?()

  • A、IPX
  • B、NetBIOS
  • C、RDP
  • D、UDP

正确答案:C

第3题:

Which of the following datatypes store time-zone information in the database?()

A. TIMESTAMP

B. DATE

C. TIMESTAMP WITH TIME ZONE

D. TIMESTAMP WITH LOCAL TIME ZONE

E. DATETIME


参考答案:C

第4题:

Which of the following commands should be used to report statistics on network protocols used by the system?()

  • A、 lsattr
  • B、 pstat
  • C、 netstat
  • D、 ifconfig

正确答案:C

第5题:

Which of the following would BEST optimize a computer that is heavily used? ()

  • A、Scandisk
  • B、Defrag
  • C、Indexing
  • D、Chkdsk

正确答案:B

第6题:

Which of the following utilities are used to choose which programs run at startup? ()

  • A、SFC
  • B、SETDEBUG
  • C、MSCONFIG
  • D、REGEDIT

正确答案:C

第7题:

Which of the following protocols is commonly used for VoIP technology?()

  • A、Telnet
  • B、SMTP
  • C、SIP
  • D、SNMP

正确答案:C

第8题:

In which of the following situations should correlation names be used?()

A.A table referenced in the FROM clause has no indexed column.

B.The table referenced in the FROM clause has more than 200 columns.

C.Two or more tables in the FROM clause have identical column names.

D.The FROM clause contains two or more tables in the SELECT statement.


参考答案:C

第9题:

Which of the following tools should be used to report current network status and is often used to check the reliability of a network?()

  • A、 netpmon
  • B、 netstat
  • C、 nfsstat
  • D、 vmstat

正确答案:B

第10题:

Which of the following datatypes store time-zone information in the database?()

  • A、 TIMESTAMP
  • B、 DATE
  • C、 TIMESTAMP WITH TIME ZONE
  • D、 TIMESTAMP WITH LOCAL TIME ZONE
  • E、 DATETIME

正确答案:C

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