Finally passed my CS exam after two failed attempts — here's what worked

by Sofia R. 28 views3 replies
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Sofia R.OP
May 27, 2026

I'm not gonna sugarcoat it — I failed the CS exam twice before finally passing last month. First attempt I went in way too confident, barely studied. Second time I used some random CS study guide I found on Amazon that honestly felt outdated and covered stuff that wasn't even on the test. Third time I actually got strategic about it.

What made the difference was drilling with a quality CS practice test environment. I mean actually simulating the real thing — timed, no pausing, treating every session like the real exam. I did this for about six weeks, two hours a night. My weak spots were distributed systems and algorithm complexity, so I focused hard there. Went from consistently scoring in the low 60s to hitting 78-82% on practice runs.

If you're currently preparing, the biggest exam tip I can give you is to stop just reading and start doing. Passive review will get you nowhere. What resources are you all using right now? Curious if anyone else struggled with the networking concepts section specifically.

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Daniel M.
May 28, 2026
The tip about simulating real test conditions is spot on. I passed on my second attempt and honestly the biggest shift was treating my study guide as a reference, not something to read cover to cover. I'd take a practice test, identify every wrong answer, then go look up just those topics. That targeted approach cut my prep time in half compared to my first attempt where I just reviewed everything randomly.
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lisa.prep
May 28, 2026
Congrats on passing! I'm in the middle of my first attempt prep right now and the distributed systems stuff is killing me too. Been using a mix of a CS practice test site and some YouTube lectures. My test is in five weeks and I'm hovering around 70% on mocks. Did you find the real exam harder or easier than the practice versions you were using?
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Nicole F.
May 28, 2026
Six weeks at two hours a night is probably the sweet spot. I tried cramming in three weeks for mine and burned out hard. Gave myself eight weeks the second time and passed with room to spare. Consistent > intense, every time.

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