【多选题】【消耗次数：1】
按照防火墙对数据的处理方法，可将防火墙分为（ ）两类。
①
数据包过滤防火墙
②
DNS防火墙
③
代理防火墙
④
网络服务防火墙
参考答案：
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相关题目
【多选题】
关于防火墙，叙述正确的是（）
①
A、防火墙可通过屏蔽未授权的网络访问等手段把内部网络隔离为可信任网络
②
防火墙的安全性能是可根据系统安全的要求而设置，因系统的安全级别不同而有所不同
③
防火墙可以有效的查杀病毒，对网络攻击可进行检测和告警
④
防火墙可以用来把内部可信任网络对外部网络或其他非可信任网络的访问限制在规定的范围之内
随机题目
【单选题】
16. The jacket was so ____ that he decided to buy it.
①
much
②
little
③
expensive
④
cheap
【单选题】
19. Your room is ____ mine.
①
twice as large
②
twice the size of
③
bigger twice than
④
as twice large as
【单选题】
4. I think the story is not so ____as that one.
①
interesting
②
interested
③
more interesting
④
most interesting
【单选题】
3.This book is ____that one, but ____than that one.
①
as difficult as; expensive
②
as more difficult as; more expensive
③
as difficult as; more expensive
④
more difficult as; as expensive
【单选题】
20. Your room is ____ than mine.
①
three time big
②
three times big
③
three times bigger
④
bigger three times
【单选题】
18. The earth is about ____ as the moon.
①
as fifty time big
②
fifty times as big
③
as big fifty times
④
fifty as times big
【单选题】
15.–What’s your brother like? –He is____.
①
a driver
②
very tall
③
my friend
④
at school
【单选题】
6. I think science is ____than Japanese.
①
much important
②
important
③
much more important
④
more much important