Deep cycle?

[steplift20]

I just picked up a group 24 battery it has 1000 cca for my 115 Yamaha 4 stroke
I didn't look at the battery when I picked it up and when I got home it is a deep cycle battery I think that shout be good, for starting my engine and he electronics My question is this First will that battery be good? And what is the real difference between starting,duel purpose and deep cycle Thanks guys Next time I'm going to take glasses with me