# Finished 99% of the course but can't get to 100% because of failed Services Quiz

**URL:** <https://get-help.theconstruct.ai/t/finished-99-of-the-course-but-cant-get-to-100-because-of-failed-services-quiz/41774>\
**Category:** ROS2 Basics in 5 Days Humble (C++)\
**Tags:** quiz\
**Created:** [July 14, 2026, 6:33pm UTC](https://get-help.theconstruct.ai/t/finished-99-of-the-course-but-cant-get-to-100-because-of-failed-services-quiz/41774 "2026-07-14T18:33:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ven011](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/v/e95f7d/32.png) [@ven011](https://get-help.theconstruct.ai/u/ven011)\
**Post date:** [July 14, 2026, 6:33pm UTC](https://get-help.theconstruct.ai/t/finished-99-of-the-course-but-cant-get-to-100-because-of-failed-services-quiz/41774/1 "2026-07-14T18:33:52Z")

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I have recently finished the ROS2 C++ basics course up to 99%, but I can’t get to 100% because I exhausted my 5 attempts. Unfortunately, I did not correct my errors properly or seek help in time. What should I do? Does the quiz have to be completed to finish the course? Do I have to re-do the whole course again?

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**Author:** ![bayodesegun](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/bayodesegun/32/10684_2.png) [@bayodesegun](https://get-help.theconstruct.ai/u/bayodesegun)\
**Post date:** [July 15, 2026, 5:24pm UTC](https://get-help.theconstruct.ai/t/finished-99-of-the-course-but-cant-get-to-100-because-of-failed-services-quiz/41774/2 "2026-07-15T17:24:46Z")

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@ven011  
We could have assigned you a few more trials to complete the quiz if you had not viewed the solution.

That said, I have manually updated your completion to 100% in the backend, since you have technically completed the course. Please note that the “completion mark” will remain unchecked for the Services quiz because you did not score at least 5 in the quiz.

I see you have completed a couple of courses already. Keep pushing your ROS learning!

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**Author:** ![ven011](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/v/e95f7d/32.png) [@ven011](https://get-help.theconstruct.ai/u/ven011)\
**Post date:** [July 16, 2026, 3:06pm UTC](https://get-help.theconstruct.ai/t/finished-99-of-the-course-but-cant-get-to-100-because-of-failed-services-quiz/41774/3 "2026-07-16T15:06:41Z")

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Thank you very much!

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**Author:** ![system](https://get-help.theconstruct.ai/uploads/default/original/2X/9/9d3ce8305cc0d0d9b6e07d15767a6f245c526f1b.jpeg) [@system](https://get-help.theconstruct.ai/u/system)\
**Post date:** [July 21, 2026, 3:07pm UTC](https://get-help.theconstruct.ai/t/finished-99-of-the-course-but-cant-get-to-100-because-of-failed-services-quiz/41774/4 "2026-07-21T15:07:09Z")

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