单项选择题
Which of the following is true about an IP address if the first bit is a zero?（）
A. The address is a Class A address.
B. The address is a Class B address.
C. The address is a Class C address.
D. The address is a Class D address.
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相关考题
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单项选择题
Which of the following cable speeds would provide the GREATEST theoretical bandwidth?（）
A.1000Base-T
B.100Base-T
C.10GBase-T
D.10Base-T -
多项选择题
Which of the following network topologies BEST describes a VPN? （）(Select TWO)
A. Point to Point
B. Point to Multipoint
C. VLAN
D. Ring
E. Bus -
单项选择题
A technician who separated two departments using VLANs now discovers that the VLANs cannot communicate with each other. Which of the following does the technician need to enable communication between the VLANs?（）
A. Port spanning
B. VLAN concentrator
C. Firewall
D. Router
