IPA IP 2021 Question 86
A question IPA Japan published in 令和3年度 ITパスポート試験 公開問題 問86, translated into English. ITPEC is based on the same exams.
A system is to be built that sends the data obtained from many network cameras installed in a store to an IoT server via the Internet, and analyzes the behavior of customers. In this case, a system configuration was adopted in which an IoT gateway is placed in the store and executes video analysis processing to extract only the coordinate data of persons from the video, so that the data is sent after its volume has been reduced. Which of the following is the term for such a system configuration?
Explanation
Edge computing — the data is processed close to where it arises, in the store's IoT gateway, and only the result goes to the server.
Sending the video of many cameras to the IoT server would load the Internet connection and the server. Here the IoT gateway in the store, at the edge of the network near the cameras, runs the video analysis itself and sends only the coordinates of the people in the picture. Processing near the devices like this cuts the volume of data sent, lightens the server's load and shortens the response time; it is what edge computing means.
Answer (c)
Why not others:
- •(a) MDM — Mobile Device Management, the central management of a company's smartphones and tablets (settings, applications, remote lock and wipe)
- •(b) SDN — Software-Defined Networking, controlling the configuration and behaviour of network devices centrally by software
- •(d) Duplex system — two systems, one online and one on standby that takes over on a failure; a configuration for reliability, not for reducing data
Key rule: Doing the processing near the devices and sending only the results to the centre is edge computing; it reduces traffic and server load.
System Component · AI-written, may contain errors
This question comes from the past questions IPA Japan publishes, translated into English by ITPEC Practice. ITPEC Practice is an independent study tool and is not affiliated with IPA or ITPEC. See the original paper (PDF) or Report an issue.