单选题A company is upgrading from DSL to a new T1. When the ISP sends a technician out, the technicianwill terminate the T1 at which of the following locations in the building?（）APatch panelBFirewallCSwitchDDemarc
单选题
A company is upgrading from DSL to a new T1. When the ISP sends a technician out, the technicianwill terminate the T1 at which of the following locations in the building?（）
A
Patch panel
B
Firewall
C
Switch
D
Demarc
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