99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項選擇題

Which of the following type of packets can easily be filtered with a stateful packet filter by enforcing the context or state of the request?以下那個協(xié)議很容易的根據請求狀態(tài)或者環(huán)境被狀態(tài)包過濾設備進行過濾?()

A.TCP
B.UDP
C.IP
D.ICMP

微信掃碼免費搜題