Hi,
According to AWS, you need to know the below concepts very well if you are thinking for AWS Certified Solutions Architect.
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Hands-on experience using compute, networking, storage, and database AWS services
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Hands-on experience with AWS deployment and management services
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Ability to identify and define technical requirements for an AWS-based application
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Ability to identify which AWS services meet a given technical requirement
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Knowledge of recommended best practices for building secure and reliable applications on the AWS platform
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An understanding of the basic architectural principles of building on the AWS Cloud
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An understanding of the AWS global infrastructure
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An understanding of network technologies as they relate to AWS
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An understanding of security features and tools that AWS provides and how they relate to traditional services
Hope this helps!
Join AWS solution architect certification program and become a certified expert.
Thanks!