单项选择题
A.An IPv6 address is 64 b long and is represented as hexadecimal characters.
B.An IPv6 address is 32 b long and is represented as decimal digits.
C.An IPv6 address is 128 b long and is represented as decimal digits.
D.An IPv6 address is 128 b long and is represented as hexadecimal characters
多项选择题 A company is installing IP phones. The phones and office computers connect to the same devicE.To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffiC.What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? （）
多项选择题 What are the two results of this configuration? （）
多项选择题 What are two reasons a network administrator would use CDP? （）