Which of the following commands would MOST likely be used to see where a loss of connectivity between two devices on a network is located?（）
第1题：
A.568A
B.568B
C.Crossover
D.Loopback
第2题：
A.IDS
B.VPN
C.NIPS
D.HIDS
第3题：
A.Mesh
B.Bus
C.Ring
D.Star
第4题：
A system administrator is trying to troubleshoot company wide email problems that may be related to DNS. Which of the following network tools would be MOST useful to determine if it is a DNS issue？（）
第5题：
Which of the following network topologies is MOST likely to affect other devices on the network if there is a problem with one of the devices? （）
第6题：
A.Router
B.Hub
C.Switch
D.Bridge
第7题：
A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command. In which OSI layer is the problem most likely occurring?（）
第8题：
A.TRACERT
B.IPCONFIG/ALL
C.NSLOOKUP
D.PING-T
第9题：
Which of the following commands would a technician use to view the active applicationconnections on a local PC to the network?（）
第10题：
Which of the following wiring standards would MOST likely be used to interconnect two devices without the use of a hub or switch?（）