单项选择题
A remote user cannot connect to the office via VPN. The user has established Internet connectivity.
Which of the following is the MOST likely next step in troubleshooting?（）
A.Power cycle the VPN concentrator at the office.
B.Determine if the VPN service is running at the office.
C.Reinstall the VPN client at the remote computer.
D.Determine if the user has the correct VPN address and password.
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A.OSPF
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There are two networks sharing the same office space. One network already has an 802.11g accesspoint. The second network acquires one as well. If known, which of the following would help keep the two networks from interfering with each other?（）
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