Yes, the monitor can be attached to a monitor mount as it has a VESA hole with the 100 x 100 mm standard. This allows it to be mounted on compatible brackets.

If you mean tiltable, yes it is. :)

The DisplayPort on this monitor is version 1.4. It has one DisplayPort 1.4 connection available.

The monitor has integrated speakers with a total output of 4 watts. There is also a headphone output (3.5 mm) to which you can connect external speakers or headphones. This means you can either use the built-in speakers or connect your own speakers via the headphone output.