What command visualizes the general NetFlow data on the command line?（）
What is the result of entering the command spanning-tree loopguard default？（）A、The command enables both loop guard and root guard.B、The command changes the status of loop guard from the default of disabled to enabled.C、The command activates loop guard on point-to-multipoint links in the switched network.D、The command will disable EtherChannel guard.
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基因对基因学说（gene-for-gene theory）
What will be disabled as a result of the no service password-recovery command？（）A、password encryption serviceB、changes to the config-register settingC、the xmodem privilege EXEC mode command to recover the Cisco IOS imageD、ROMMON
In the Cisco IOS, what is the definition of a global command?（）A、A command that can be entered in any configuration mode.B、A command that supports all protocols.C、A command that is implemented in all IOS versions.D、A command that is set once and affects the entire router.E、A command that is available in every release of IOS.
What is a global command?（）A、a command that is set once and affects the entire routerB、a command that is implemented in all foreign and domestic IOS versionsC、a command that is universal in application and supports all protocolsD、a command that is available in every release of IOS, regardless of the version or deployment statusE、a command that can be entered in any configuration mode
The command echo $! will produce what output？（）A、 the process id of last background commandB、 the exit status of the last commandC、 the exit status of the last background commandD、 the process id of the current shellE、 the name of the command being executed
What command will display the network configuration of an Ethernet adapter？（）A、lsdevB、lscfgC、entstatD、ifconfig
