A developer is writing an application that stores data in an Amazon DynamoDB table by using the Putltem API operation. The table has a partition key of streamID and has a sort key of seqID. The developer needs to make sure that the Putltem invocation does not overwrite the existing partition key and sort key.
Which condition expression will maintain the uniqueness of the partition key and the sort key?

A. 
      

B. 
      

C. 
      

D. 
      








 

Suggested Answer: C

Community Answer: A




This question is in DVA-C01 AWS Certified Developer – Associate Exam
For getting AWS Certified Developer – Associate Certificate


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