The AWS Certified Big Data certification is suitable for individuals who perform complex Big Data analyses having minimum of two years of experience in AWS.
Abilities Validated by the Certification
Implement core AWS Big Data services as per the basic architecture best practices
Design and maintain Big Data
Leverage tools to automate data analysis
If you want to prepare for AWS Big Data Speciality Certification, then I recommend this AWS Big Data Certification course by Intellipaat.
Also, watch this video on Big Data in AWS: