多项选择题
Which of the following four CRS components must be active on a Historical Reporting Database (HRDB) and Call Recording expansion server?（）
A.CRS Node Manager B.CRS Engine C.Cisco Recording D.CRS Application Editor E.Cisco Monitoring F.CRS Repository Datastore, CRS Historical Datastore, CRS Config Datastore, CRS Agent Datastore
多项选择题 HowdoestheExtendedGetDigitStringstepdifferfromtheGetDigitString?（）
单项选择题 Whatlevelofcontroldoesasubflowhaveontheoverallcontact?（）
单项选择题 WhatformuladoyouusetocomputethenumberofIVRports?（）
