Need C-V joint replacement?

[RJRavalli@xxxx]

I was told earlier that my chirping sound from my passenger
rear wheel is a C-V joint / boot. I know this is a dumb question
but please bear with me- Are the joint and the boot the same thing?
Will replacing this be something my shop can do with standard
parts readily available, or will I have to order from a vendor?
Any help would be great as I would like to fix this in a one day
without having to wait for parts if possible.

Thank you in advance,

Richard
(Still wowing people in Modesto, CA on a regular basis!)