Internet of things

Which standards document defines IoT as “a global infrastructure for the information society, enabling advanced services by interconnecting (physical and virtual) things”?. 3GPP Release 13. IEEE 802.15.4. ITU-T Recommendation Y.2060. MQTT 5 (OASIS).

In the cellular M2M period (1995–2010), which technology enabled vending machines, alarms and trucks to be connected?. GSM SMS and GPRS modules. leased lines and private radio. IPv6 and 6LoWPAN. NB-IoT and LoRaWAN.

In the early 1980s, which device at Carnegie Mellon reported its stock over the ARPANET?. a smart electricity meter. an RFID-tagged pallet. a lift emergency phone. a Coca-Cola vending machine.

In which 3GPP release were LTE-M and NB-IoT added?. Release 8 (2008). Release 13 (2016). Release 15 (2018). Release 17 (2022).

A classic M2M solution has four parts. Which of them is described as optional?. the M2M area network. the M2M device. the communication network. the M2M application.

Each silo application costs $500k, while a shared platform costs $700k plus $100k per application. How much does the shared platform save for five applications?. $0.5M. $0.8M. $1.0M. $1.3M.

According to the textbook, the IoT vision is a move from closed, vertical, device-centric point solutions towards systems that are: closed, horizontal and device-centric. open, vertical and application-centric. open, horizontal and information-centric. proprietary, horizontal and network-centric.

A sensor observes whether a parking bay is occupied. In IoT terms, the parking bay itself is: the Device. the Physical Entity, the “thing” of interest. the gateway. the broker.

Which of the following is a business driver of the move from M2M to IoT?. IPv6’s 2^128 addresses. urbanisation. eCall regulation. products sold as services (“power by the hour”).

Around 2010, visions predicted 50 billion devices by 2020. What did analyst counts for 2020 show (excluding phones and PCs)?. about 11–12 billion. about 50 billion. about 1–2 billion. about 100 billion.

600 000 meters each report every 15 minutes, and all of them send within the first 30 s of each quarter-hour. What is the peak message rate?. about 667 messages/s. 20 000 messages/s. 10 000 messages/s. 40 000 messages/s.

A 40-byte payload is sent over MQTT/TCP/IPv4 with a 2-byte fixed header and a 24-byte topic field. What are the total size and the efficiency? (look at comment below). 66 B and 60.6 %. 82 B and 48.8 %. 106 B and 37.7 %. 126 B and 31.7 %.

The water meter of the notes uses 0.0556 mAh per report and 0.24 mAh per day asleep. What is its daily consumption if it reports every 30 minutes?. 0.24 mAh/day. 1.57 mAh/day. 5.57 mAh/day. 2.91 mAh/day.

According to the M2M versus IoT comparison table, what is the main value of M2M?. new services and knowledge from combined data. operational efficiency. data marketplaces. integration with ERP and CRM.

Which subscription receives messages published to both cs412/meter/42/kwh and cs412/pump/7/status?. cs412/#. cs412/meter/+/kwh. cs412/+/kwh. cs412/meter/#.

The idea of the value chain, which the textbook applies to M2M and IoT, was first introduced inside one firm by: James Moore (1993). Michael Porter (1985). Stan Shih (1992). Gereffi, Humphrey and Sturgeon (2005).

In the five generic value-chain stages, the stage where IoT products are combined and made saleable as dashboards, APIs or information products is. inputs. production / processing. distribution / marketing. packaging.