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
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多项选择题
CiscoSoftwareAdvisorallowsyoutosearcheitherforsoftwarethatiscompatiblewithyourhardwareorforsoftwarewiththespecificfeaturesyouneed.Identifytwoitemsthatareonlyavailableforselectionwhensearchingforspecificfeatures？（Choosetwo.）（）
A. Category
B. Type
C. Series
D. Model
E. OS
F. Engine/CPU -
单项选择题
WhatisonebenefitoftheCiscoanti-Xdefensestrategy？（）
A. applications security
B. virtual firewall protection
C. security events correlation for proactive response
D. malware， virus， and worm mitigation
