IPA IP 2023 Question 19
A question IPA Japan published in 令和5年度 ITパスポート試験 公開問題 問19, translated into English. ITPEC is based on the same exams.
There is a mechanism in which communication equipment built into a beverage vending machine installed in a residential area and a computer that monitors the vending machine remotely send and receive data via a network, so that inventory management is realized. Like this, which of the following is a mechanism in which machines exchange information with each other via a network, so that advanced control and operation are performed autonomously?
Explanation
M2M (Machine to Machine) — machines exchanging data over a network directly with each other, with no person in between, to control and act autonomously.
The vending machine reports its sales and stock over the network, and the monitoring computer uses the data to plan restocking: the machines talk to each other and the work runs without anyone visiting the site. Other M2M examples are remote meter reading and monitoring of elevators or construction machinery. M2M is the basis of IoT, which widens the idea to every kind of thing connected to the Internet.
Answer (c)
Why not others:
- •(a) MOT — Management of Technology: managing technology as a source of business value, a management discipline
- •(b) MRP — Material Requirements Planning: calculating the quantities and timing of parts to order from the production plan, the bill of materials and inventory
- •(d) O2O — Online to Offline: using online channels, such as coupons on an app, to bring customers to physical shops
Key rule: M2M is device-to-device communication with no human in the loop; IoT is the wider idea of connecting all kinds of things to the Internet to collect and use their data.
Business Industry · 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.