单项选择题
Your company has two primary divisions： Products and Services. The Products division is on network 150.10.640/21. The Services division is on network 150.10.72.0/21. You want to summarize both networks into one routing statement. Which IP address and subnet mask combination would most efficiently accomplish this？（）
A. 150.10.64.0/21 B. 150.10.64.0/22 C. 150.10.64.0/20 D. 150.10.0.0./16
多项选择题 CiscoSoftwareAdvisorallowsyoutosearcheitherforsoftwarethatiscompatiblewithyourhardwareorforsoftwarewiththespecificfeaturesyouneed.Identifytwoitemsthatareonlyavailableforselectionwhensearchingforspecificfeatures？（Choosetwo.）（）
单项选择题 WhatisonebenefitoftheCiscoanti-Xdefensestrategy？（）
