I concur with the earlier advice about this CBE. I went through the same CBE and found it easy even though I crammed for it the day before. I have a corporate IT background, so keep that in mind. You need the textbook. The online material and the practice quiz is not enough to pass.
The best use of time is to read the end-of-chapter summary carefully, skim the chapter, then read the summary again. 1 hour per chapter the day before/day of should be sufficient to pass. I recall there were only a few repeats from the practice quiz, so I would not waste time on it beyond taking it once and reading through the wrong answers. I also agree that the actual exam is harder than the practice.
The best use of time is to read the end-of-chapter summary carefully, skim the chapter, then read the summary again. 1 hour per chapter the day before/day of should be sufficient to pass. I recall there were only a few repeats from the practice quiz, so I would not waste time on it beyond taking it once and reading through the wrong answers. I also agree that the actual exam is harder than the practice.
TESU BA CS and Math (graduated December 2016)