Cloud is new the buzzword. If you go and search for cloud computing, every vendor comes up with its own definition. For all those people who want to get certified, there are many vendor specific certifications like AWS Architect etc or one can chose many vendor neutral certifications like the one provided by CloudSchool or Comptia.
One such exam which i recently did was Comptia Cloud+ Certification. This certification gives you good overview on the internals of cloud architecture and concepts which can be very helpful.
The below are the resources which one could use to pass the exam.
1. Comptia Cloud+ Book
This book is a good starting point. It also contains CD which gives you 5 full exams. Though this is a good starting point, but i think one should not totally rely on it. The concepts given in the book are good from theory perspective, but real exam does test you in dept of particular concept. So one needs to go for combination of concepts given in this book along with youtube videos to get more clarity.
2. CV0-001 Mock mobile based mock exam
These are good 200+ questions available on over an apple device.
3. Simply iLearn web-based training
4. cybrary.it -> Good site for dedicated videos on Comptia Cloud+
Finally, make sure you go thru Comptia Cloud+ Terminologies given in the objectives thoroughly & also go through as many as videos on you tube for each of the concept given in the book. The exam tests you on in deep on concepts like RAID, SAN, NAS, Security, HBA, LUN Masking etc.
Best of Luck!!