CCNA: Cisco Certified Network Associate — Question 684

Which two northbound APIs are found in a software-defined network? (Choose two.)

Answer options

• A. REST
• B. OpenFlow
• C. SOAP
• D. NETCONF
• E. OpFlex

Correct answer: A, C

Explanation

The correct answers are A (REST) and C (SOAP) because both are northbound APIs that facilitate communication between the SDN controller and applications. Options B (OpenFlow) and D (NETCONF) are primarily used as southbound protocols, while E (OpFlex) is not a standard northbound API like REST or SOAP.