Which IoT devices can be used to improve workplace safety in mining, heavy industries, and construction? a. social media, mobile, and Internet usage surveillance b. safety helmets and wristbands embedded with sensors C. video surveillance cameras and smart locks d. smart building systems Compology's dumpster-monitoring software uses data from garbage container sensors plus external data to determine when dumpsters need service and alert sanitation workers so they can take preemptive action. Which type of IoT application is this? a. control and react b. transform and explore C. connect and monitor d. predict and adapt Which benefit of public cloud computing results when service providers operate multiple data centers distributed geographically and save multiple copies of data on different machines? a. decreased redundancy b. flexible capacity C. reduced costs O O O d. increased redundancy Questions Navigation Menu