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單項(xiàng)選擇題

Which of the following devices separates a LAN segment into two collision domains, without affecting the broadcast domain?（）

A.Firewall
B.Bridge
C.Repeater
D.Router

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Which of the following protocols is used to encrypt data between web servers and web browsers?（）

A.SMTP
B.SIP
C.HTTP
D.SSL

單項(xiàng)選擇題

A user plugged a cable between two network jacks that attach to the same switch and caused a broadcast storm.
Which of the following would have prevented the broadcast storm?（）

A. Spanning tree
B. VLAN tagging
C. 802.1x
D. Port mirroring