单项选择题
A.RIP B.BGP C.OSPF D.EIGRP
AcompanyisinstallingIPphones.Thephonesandofficecomputer...
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? (Choose two.)（）
A.hub B.router C.switch D.STP E.subinterfaces F.VLAN
Anetworkinterfaceporthascollisiondetectionandcarriersen...
单项选择题A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?（）
A.This is a 10 Mb/s switch port. B.This is a 100 Mb/s switch port. C.This is an Ethernet port operating at half duplex. D.This is an Ethernet port operating at full duplex. E.This is a port on a network interface card in a PC
Whichspreadspectrumtechnologydoesthe802.11bstandarddefi...
单项选择题Which spread spectrum technology does the 802.11b standard define for operation?（）
A.IR B.DSSS C.FHSS D.DSSS and FHSS E.IR, FHSS, and DSSS
