Hi Rajeswari Depala,
Thank you for your question in Microsoft QnA!
DDos Protection have different SKUs and as the Question is Specific to "DDoS Rapid response" which is SKU specific offering and dosn't comes with DDoS IP Protection
You can find the comparision here :
https://learn.microsoft.com/en-us/azure/ddos-protection/ddos-protection-sku-comparison
Please click "Accept as Answer " if this helps