Which command shows your active Telnet connections?（）
第1题：
A.show session
B.show cdp neighbors
C.show users
D.show queue
第2题：
Which command shows system hardware and software version information？（）
第3题：
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."
At which OSI layer is this problem associated with?
A．The data link layer
B．The application layer
C．The access layer
D．The session layer
E．The network layer
第4题：
Which IOS command shows the detailed error report?（）
第5题：
Which command shows dump components and controls live dump attributes?（）
第6题：
Which command shows your active Telnet connections?（）
第7题：
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）
第8题：
A.dumpctrl
B.sysdumpdev
C.livedumpdev
D.livedumpctrl
第9题：
Which command shows all the paging spaces available on a system？（）
第10题：
Your company has an Active Directory domain. You install a new domain controller in the domain. Twenty users report that they are unable to log on to the domain. You need to register the SRV records. Which command should you run on the new domain controller（）