[ 单选题 ] (3分) By which of the following access technology, bandwidth is not shared among the users? ( )(3.0)
A. WiFi
B. HFC
C. ADSL
D. None of the above
查看答案
MAC broadcast address is ( ).
A. FF-FF-FF-FF-FF-00
B. 255.255.255.255
C. FF-FF-FF-FF-FF-FF
D. 255.255.255.0
What is stored in the ARP table of the Internet host? ( )
A. IP addresses
B. MAC addressses
C. the mapping of domain names to IP addressses
D. the mapping of IP addresses to MAC addressses
Which size of frames are treated as invalid frames? ( )
A. frames smaller than 64
B. frames smaller than 128
C. frames smaller than 100
D. frames smaller than 512
Which of the following MAC addresses is correct?（ ）
A. 00-45-6B-3A-34-2H
B. 192.168.1.55
C. 65-10-96-58-16D
D. 00-06-5B-4F-45-BA
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