Is there an advantage with using Straighterline rather than enrolling with a Univ?

[cookderosa]

I am planning to take SL courses (Science or Arts)for my Excelsior BS Computer degree. I have plan to earn Masters degree from traditional university. Will I have any issue for getting admission in graduate school as I will have few UG courses from SL?

Possibly. I wouldn't use any pass/fail source for your pre-reqs. Your non-pre req gen eds won't matter. SL, CLEP, etc will all simply appear as "credit" and not a grade. Depending on your grad school, this may be important. If your grad school simply requires a degree and GPA, you should be fine. For instance, health science folks shouldn't use SL for anatomy & physiology. Business folks shouldn't use CLEP for economics, science folks shouldn't use SL for lab sciences. Of course this all depends on the school, but that advice assumes you want general advice. That advice is for people not yet sure about which grad school.

When you say "traditional" I interpret that to mean butt-in-seat on the ground university from a non-profit. If that's the case, and you already have a few picked out, you should absolutely start looking at admission requirements. Plan what you can, and deal with the rest. If you can't get into an English master's program because you tested out of all the writing requirements, then you might not end up in an English program at your choice school. On the other hand, a business school probably doesn't care that you CLEPped Humanities.

Let me edit my answer to add that of the 2000 grad programs in this country, everything I just said applies to about 20% of them. The other 80% would love to have you and your cash.