单项选择题 Choosethemostaccuratestatementregardingtheaccountqualificationandplanningservice componentinthepreparephase.（）

单项选择题 Becauseofthesystems－levelapproach，Ciscosecuritycandefendagainstwidespreadattacks fromhackersandviruses.WhatdescribestheCisconetworksecuritystrategy？（）

单项选择题 Whatwillcausewirelessvoicedevicestoperformpoorly？（）