Development and Testing ITP-110 Practice Questions (Page 5)

Questions 21–23

1. 21expert · hard

   A city is deploying a network of smart streetlights that connect via a cellular modem. Each light reports its status every 10 minutes. The city has a strict budget and wants to minimize the monthly cellular data cost. During testing, the team finds that the current firmware sends a 2 KB JSON payload for each status update. Which change would MOST reduce data usage while still allowing the city to monitor the lights effectively?

   • AReduce the payload size by using a compact binary format instead of verbose JSON.
   • BUse a higher compression algorithm on the JSON payload.
   • CSwitch to a different cellular carrier with a lower per-byte rate.
   • DIncrease the reporting interval from 10 minutes to 1 hour.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   During the development phase of an IoT system development life cycle, which set of activities is performed?

   • ADefining business requirements and identifying stakeholder needs
   • BPerforming end-to-end system validation and security penetration testing
   • CWriting firmware for the device, designing the printed circuit board (PCB), and configuring the network protocols
   • DDeploying the system to production and monitoring live device telemetry
   Reveal Solution Discussion Select an answer first
3. 23application · medium

   A logistics company is deploying a fleet of temperature-tracking tags that report via a cellular network. During a pilot, the tags work correctly in urban areas but fail to report when the trucks pass through a rural mountain corridor. The tags have been verified to work in the lab. Which testing activity should the team perform to characterize this issue?

   • ASecurity penetration testing on the cellular connection to check for interception.
   • BLoad testing the cloud backend to see if it can handle the fleet's report volume.
   • CRegression testing of the firmware in the lab to ensure no code changes broke the reporting logic.
   • DField testing in the rural corridor with signal-strength logging and packet-capture at the gateway.
   Reveal Solution Discussion Select an answer first