Which step would you use to get information about the number of contacts currently in queue?（）

单项选择题Whichstepisdesignedtopromptausertopressorsayasingle-digitnumbertoperformaspecificfunction?（）

A.Menu  
B.Get Digit String  
C.Get Call Contact Info  
D.Extended Get Digit String

单项选择题IntheCRSApplicationEditor,wheredoyoustartthedebugger?（）

A.toolbar  
B.Step palette  
C.Design window  
D.Variable window

单项选择题IftheCallRedirectstepsendsacallertoadevicethatdoesnotexistintheCallManager,whichbranchofthestepisexecuted?（）

A.Busy  
B.Invalid  
C.Successful  
D.Unsuccessfu

多项选择题Whichtwostepscheckoutadatabaseconnectionfromtheconnectionpool?（）

A.DB Get  
B.DB Read  
C.DB Write  
D.DB Release

单项选择题WhatistheFlushInputBuffersettingusedforintheInputtaboftheMenustep?（）

A.to release memory held by the prompt variable  
B.to clear the value of the menu choice before the prompt is played  
C.to prevent the previous value from being used again on the menu choice  
D.to prevent the caller from entering a menu choice before the prompt has played