Explanation:Communication as a Service (CaaS), enables the consumer to utilize Enterprise level VoIP, VPNs, PBX and Unified Communications without the costly investment of purchasing, hosting and managing the infrastructure. 10. Which of the following is IaaS service provider ?
A. EC2
B. EC1
C. EC10
D. Hybrid
Answer:A
Explanation:Communication as a Service (CaaS), enables the consumer to utilize Enterprise level VoIP, VPNs, PBX and Unified Communications without the costly investment of purchasing, hosting and managing the infrastructure. 10. Which of the following is IaaS service provider ?
A. EC2 B. EC1 C. EC10 D. Hybrid
Explanation:On Amazon EC2, a client would provision a computer in the form of a virtual machine image. Sanfoundry Global Education & Learning Series – Cloud Computing.