单项选择题
A.IPv6 B.RIP C.IGRP D.RIPv2
Auserisunabletoconnecttothenetwork.Anetworktechnicianis...
单项选择题A user is unable to connect to the network. A network technician is able to determine that there is a problem on the switch. All other users on that switch are able to connect successfully to the network. Which of the following is a probable cause？（）
A.Switching loop is occurring on the switch. B.Wrong subnet mask on the switch. C.Incorrect SNMP settings on the switch. D.Port is misconfigured on the switch.
Whichofthefollowingprotocolswouldamultilayerswitchuseto...
单项选择题Which of the following protocols would a multilayer switch use to learn the IP address of a directly connected device？（）
A.ARP B.BOOTP C.Inverse-ARP D.DNS
Whichofthefollowingisthedefaultportfortelnet？（）A.20B.21...
单项选择题Which of the following is the default port for telnet？（）
A.20 B.21 C.22 D.23
