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单选题What is the data type returned by the CREATE_TIMER built-in?（）A longB timerC numberD varchar2

题目
单选题
What is the data type returned by the CREATE_TIMER built-in?（）
A

long

B

timer

C

number

D

varchar2

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第1题：

Which fields are included in the TCP header?（）

  • A、Source Port
  • B、Acknowledgement Number
  • C、Request Number
  • D、Destination Address
  • E、Window
  • F、Data

正确答案:A,B,E

第2题：

Data deduplication ratios depend on many factors. However， deduplication ratios are generallygreater for what type of data？（）

  • A、encrypted data
  • B、compressed data
  • C、archive data
  • D、multiplexed data streams

正确答案:B

第3题：

WhatisthedatatypereturnedbytheCREATE_TIMERbuilt－in?()

A.long

B.timer

C.number

D.varchar2


参考答案：B

第4题：

You are maintaining a database of credit card transactions. You want the data to be returned automatically in the chronological order of the credit card numbers without using the ORDER BY clause in the query. Which type of cluster will you use to obtain the desired result？（）  

  • A、 Hash cluster
  • B、 Index cluster
  • C、 Sorted hash cluster
  • D、 Real Application cluster

正确答案:C

第5题：

Which datatype is returned by the FIND_MENU_ITEM built-in function?（）

  • A、number 
  • B、Boolean 
  • C、menuitem 
  • D、VARCHAR2 

正确答案:C

第6题：

What does the value returned by the method getID（） found in class java.awt.AWTEvent uniquely identify？（）  

  • A、The particular event instance.
  • B、The source of the event.
  • C、The set of events that were triggered by the same action.
  • D、The type of event.
  • E、The type of component from which the event originated.

正确答案:D

第7题：

What type of protection is implemented when the DBA issues the ALTER DATABASE SET STANDBY DATABASE PROTECTED； command？（）

  • A、The standby database is protected against write operations. 
  • B、The primary database is protected against write operations. 
  • C、The primary database is protected against data loss and data divergence. 
  • D、The standby database is protected against data loss and data divergence. 

正确答案:C

第8题：

When a client using the SERVER_ENCRYPT authentication type connects to a server using the SERVER authentication type, what happens?()

A.An error will occur.

B.Data passed between the client and the server is encrypted.

C.User IDs and passwords are passed to the server unencrypted.

D.User IDs and passwords are encrypted before they are passed to the server.


参考答案：A

第9题：

Which three statements are true regarding the data types in Oracle Database 10g/11g?（）

  • A、Only one LONG column can be used per table 
  • B、A TIMESTAMP data type column stores only time values with fractional seconds 
  • C、The BLOB data type column is used to store binary data in an operating system file 
  • D、The minimum column width that can be specified for a VARCHAR2 data type column is one 
  • E、The value for a CHAR data type column is blank-padded to the maximum defined column width

正确答案:A,D,E

第10题：

What is the data type returned by the CREATE_TIMER built-in?（）

  • A、long
  • B、timer
  • C、number
  • D、varchar2

正确答案:B

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