单项选择题
Forlaserswithtightlycontrolledwavelengths,approximatelyhowfarapartarethecentersofadjacentwavelengthswhen100GHzspacingisusedinaDWDMsystem?()
单项选择题 WhattoolisusedtoestimatethehardwareserverresourcesrequiredforanIPCCExpressdeployment?()
单项选择题 WhatissuesnotificationmessagesforCRSengineerrors?()
单项选择题 WhatformuladoyouusetocalculatethenumberofVoiceGatewayports?()