单项选择题
A.802.11g B.802.11a C.802.1n D.802.11b
Which of the following protocols is commonly used by pi...
单项选择题Which of the following protocols is commonly used by ping?（）
A.SIP B.ICMP C.TFTP D.ARP
The "1000" in 1000BaseT cabling represents which of the...
单项选择题The "1000" in 1000BaseT cabling represents which of the following?（）
A. The theoretical maximum cable length B. The theoretical maximum bandwidth C. The theoretical port limit of the cable D. The quality level of the copper wiring used
Which of the following wireless technologies can operat...
单项选择题Which of the following wireless technologies can operate at only 5GHz?（）
A.802.11b/g B.802.11g C.802.11b D.802.11a
