Which of the following tools should be used to report current network status and is often used to check the reliability of a network？（）

Whichofthefollowingcommandsshouldbeusedtosetnetworkattr...

单项选择题Which of the following commands should be used to set network attributes on a currently running kernel？（）

Whichofthefollowingcommandsshouldbeusedtoviewandchanget...

单项选择题Which of the following commands should be used to view and change the network filesystem tuning parameters available on the system？（）

Whichofthefollowingcommandsdisplaysthenumberofsystemcal...

单项选择题Which of the following commands displays the number of system calls per second that are being executed？（）