I've been playing bass for 15 years now, and honestly, I never get bored of it. However, while taking a look at this video, I can see how beginners can become tired of this instrument quickly. The reason for this "beginner-boredom" is simply that practicing what really matters for bassists can be monotonous, tedious, and down-right exhausting. (Maybe it's not a coincidence I went to law school!)
Anyway, fear not because these type of exercises will help you become a better bass player so long as you take the time to build up a solid foundation.
1=first finger, 2=middle finger, 3=ring finger, 4=pinky
Use one finger per fret, and play these combination, starting on the 5th fret:
1234 1243 1324 1342 1423 1432
2134 2143 2314 2341 2413 2431
3124 3142 3214 3241 3412 3421
4123 4132 4213 4231 4312 4321