Difference between juma and zuhr's namaz?

Juma, which literally translates to Friday is the most religious day of the week for Muslims (similar to Saturday for Jews and Sunday for Christians). Muslim men are obligated to pray the afternoon prayers (refered to as Zuhr) in the mosque with the congregation. The Imam or preacher also gives a sermon and the prayers or namaz (farsi/urdu Word for prayers) is shorter than the regular Zuhr prayers (Juma prayers are 2 Rakat Faraz vs 4 Rakat for Zuhr). If a person misses their Juma prayer then they are obligated to do the regular Zuhr prayers.