单项选择题 The operator needs to change the /test filesystem in the testvg volume group so that it mounts automatically following a system reboot. Which of the following commands is correct?（）

单项选择题 The operator needs to execute a long-running shell script. How can the script be executed so the operator does not have to wait until it is complete to access the command prompt?（）

单项选择题 An operator needs to transfer several files in the same directory using ftp without being prompted. Which of the following ftp subcommands must be used?（）