Always take practice tests when you can. Petersons.com has practice tests for both of these exams. I'd suggest using those to gage your knowledge. You want to score at least 50% to be safe. I myself won't take a CLEP until I get at least 60% on them, but I like to be sure.

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CLEP exams passed:
Management, Accounting, Marketing, Macroeconomics, Microeconomics

DSST exams passed:
Human Resources Management, Organizational Behavior, Statistics, Management Information Systems

Earned:
B.A. in Business Administration: Technology Management (magna cum laude) from Saint Leo University

In Progress:
M.S. in Leadership and Business Ethics from Duquesne University (24 credits completed)