Possibly both pictures are correct. This depends if you own DCE device or not; (likely you not) and if DCE device is located in your office or outside;
This is old WAN technology which is going away anyway.
If this is some kind of test question or review question I would probably answer the black and white. My reasons being, the ISP typically provides the Clock rate and in the color photo it looks as though they dont own the DCE equipment. Looks like something setup at the customer site. Therefore my answer would be black and white.
old WANs using DCE and CSU/DSU devices are Serial leased lines, FR and ISDN (stil in use in Europe I believe);
For exam, I think it is safe to say: DCE is provided by ISP.