多项选择题
Which of the following network connections would use a standard POTS line to both send andreceive Internet packets?（）
A.Dial-up
B.DSL
C.Satellite
D.OC3
E.T1
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A. Emergency Restore Disk
B. System Restore point
C. Original Installation CD
D. Automated System Recovery -
单项选择题
Which of the following is the MOST common secure web server port?（）
A.22
B.80
C.110
D.443 -
多项选择题
A client states they are receiving poor signal strength on their wireless Internet connection. Which of the following is MOST likely causing the interference?（）
A. Cordless phones
B. Drywall
C. Access points
D. Microwaves
E. Fluorescents lights
