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Why would an architect require an application to be written as an internal application rather than as an external application?
A. lower cost of development
B. faster event-driven responses
C. greater flexibility of platform choices
D. increased program language options
Correct Answer: B
Explanation/Reference:
Explanation: HP SDN Controller Internal Applications and Modules There are two main ways applications interact with the controller:
· Within the controller using native applications or modules (Java based or byte compatible applications such as Scala).
· Outside the controller using web based applications (using RESTful APIs).
Application Types:
· Native Applications / Modules – This is the ideal model for applications that need to exert relatively finegrained, frequent and low-latency control interactions with the environment, e.g. handling packet-in events, etc.
· Web Based applications – Suitable for applications that need to exert "business" level, i.e. relatively coarsegrained, infrequent and high-latency control interactions with the environment, e.g. path provisioning, flow inspections, etc.
Reference: HP SDN Controller Architecture, Technical Solution Guide
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