Brakes issue ?

Hello, My Camry XLS have pulsation when brake pedal is applied. The pulsation get increased with the speed and very noticeable at 60 -70 mph.

Is it front or rear break issue ? If you think rotors has to be re-surfacesd should I also change pads ?

Thanks for you help

This sounds like what happens when the rotors are worn unevenly or warped, which is usually caused by pads that should have been changed a long time ago. If the rotors are worn, they can probably be resurfaced. If they're warped, they probably need to be replaced. Get them checked, then get them checked again by someone else. A second opinion is always a good idea. Don't go to a dealership unless you have a warranty through them, because they'll likely try to rip you off.