Wow, that sounds like an absolutely horrendous experience - taking exams is stressful enough without all of that happening to you!
They do have a policy covering "exam assistance and breaks", and "technical issues" which I've linked below. Your situation may fall outside of this policy so persevere with contacting Support to get a proper adjudication and hopefully a resit at no additional fee/no wait time.
In terms of the potential impacts:
- If the exam timer was still running down during your issues then you would have lost time through no fault of your own.
- Stress of the situation causing you not to think clearly or be distracted leading to selection of incorrect answers to questions.
I'm not sure being logged on in multiple places would cause any issues with the scoring unless someone else was sat at one of the terminals answering questions incorrectly. Did you notice the question numbers not being sequential? I don't know if the CAT algorithm takes into account time to answer a question (e.g. extended time to answer through taking voluntary breaks or enforced breaks due to issues being considered a negative thing), but even if it did I think that would potentially only change the number of questions you were asked and the topics. Scoring should only be affected by correct/incorrect answers.
Here's the policy:
https://www.isc2.org/Register-for-Exam#accordion-a4e681b65dfa428996b5b1a53721c643
"Exam Assistance and Breaks
You must remain in your seat during the exam, unless the staff says it’s okay for you to get up. You may not change your computer terminal unless a TA directs you to do so.
Raise your hand to notify the TA if you:
- Believe you have a problem with your computer.
- Need to change note boards.
- Need to take a break.
- Need the administrator for any reason.
Your total exam time includes any unscheduled breaks you may take. All breaks count against your testing time. You must leave the testing room during your break. However, you may not leave the building or access any personal belongings unless absolutely necessary (such as for retrieving medication).
When you take a break, you’ll be required to submit to a palm vein scan before and after your break
...
...
Technical Issues
On rare occasions, the test center may have technical problems. You may need to reschedule your cybersecurity exam.
If technical issues cause you to wait more than 30 minutes after your scheduled exam start time, or your exam starts and then stops with a delay of more than 30 minutes, you’ll have the choice of continuing to wait or rescheduling with no additional fee:
- If you choose not to reschedule and take the test after your delay, your test results will count. You’ll have no further recourse.
- If you choose to wait but change your mind before starting (or restarting) your exam, you can take the exam at a later date at no extra cost.
- If you choose to reschedule or the technical problem can’t be fixed, you’ll be allowed to test at a later date at no extra charge.
We know your time is valuable. If your test center identifies technical problems before your exam, they’ll make every attempt to contact you."
Effectively, the policy covers an issue lasting 30 mins, but doesn't say anything about multiple issues that may add up to 30 mins or more, so you may have some recourse there if you were inconvenienced by more than 30 mins in total. I would also highlight the stress of the situation as this is sure to have had an effect. Starting and stopping multiple times is probably just as bad if not worse than one issue lasting 30 mins.
Although, if you were offered the chance to reschedule at the time and chose to continue then you may have no recourse.
