Does the Cloud DevOps Nanodegree prepares me for the AWS Certified DevOps Engineer — Professional exam?

Yes, the Cloud DevOps Nanodegree prepares you for the AWS Certified DevOps Engineer — Professional exam.

But you need to understand this to prepare any exam:

• To prepare any exam you need to know how it is going to work and train using sample exams or old exams similar to the current exam. No matter how smart you are or how much you know, to be able to succeed in a difficult exam you need to train. You can be the best runner in the world, but if you never run before a 100m, you are not going to be able to give your best and you can even fail.
• Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams. Prepare with sample exams or old exams.
• There are some topics that are not explained in detail in the Nanodegree, these are: