What is the purpose of udevmonitor?
A. Listen to kernel events produced by a udev rule and print information to the console
B. Monitors the /dev directory for new devices
C. Monitors the udev process and prints performance statistics to the console
D. Communicates with D-Bus to setup new devices
題解
「udevadm」已經取代了「udevmonitor」。「udevadm」指令可以傳送控制命令或是測試裝置管理員，當然也可以監聽kernel和udev事件。所以答案是選項A。