CCNA: Cisco Certified Network Associate — Question 311

What uses HTTP messages to transfer data to applications residing on different hosts?

Answer options

• A. OpenStack
• B. OpFlex
• C. REST
• D. OpenFlow

Correct answer: C

Explanation

REST is the correct answer because it is an architectural style that leverages HTTP for data transfer between clients and servers. OpenStack and OpFlex are related to cloud computing and policy management, respectively, while OpenFlow is a protocol for network management and does not focus on application data transfer.