Which of the following is a characteristic of cold pluggable devices?

Cold pluggable devices refer to hardware components that need to be installed or removed while the system is powered off. This characteristic ensures that they do not introduce any electrical risks or data corruption that may occur if modifications are made while the system is running.

When connecting or disconnecting these devices, it’s important that the system is turned off to maintain the integrity of the hardware and the overall stability of the operating environment. This is commonly applicable to components such as certain types of hard drives or older hardware interfaces that cannot handle live connections safely.

The other choices describe characteristics of hot-pluggable devices, which can be connected or disconnected while the system is powered on. This includes more modern hardware standards that support dynamic insertion and removal without needing a system shutdown.