单项选择题

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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单项选择题

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

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

单项选择题

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
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多项选择题

A network consultant is asked to set up a wireless network in a home. The home user wants the wireless network to be available in every comer of the house.
Which of the following additional information will the technician need to determine the equipment for the installation? （）(Select TWO)

A. The length of the house
B. How many rooms are in the house
C. How many users will be using the wireless network
D. The building material of the house
E. The cost of the house