Identify and Describe Common IoT Safety Concerns. ITP-110 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which IoT failure in a smart traffic management system could lead to a transportation accident?

   • AThe system sends conflicting signals to traffic lights at an intersection, causing all directions to show green simultaneously.
   • BThe system's cameras record lower-resolution video than expected.
   • CThe system fails to display advertisements on digital billboards.
   • DThe system's sensors detect more cars than are actually present.
   Reveal Solution Discussion Select an answer first
2. 27expert · hard

   A food processing plant uses IoT sensors to monitor the temperature of its cold storage units. An attacker exploits a vulnerability in the sensor's web interface to alter the temperature readings, showing a safe temperature when the actual temperature has risen to a level that allows bacterial growth. The plant's quality assurance team only checks the sensor data remotely. What is the most effective way to mitigate this risk without completely shutting down the plant?

   • AImplement a more secure web interface for the sensors to prevent the attacker from altering the readings.
   • BImplement a mandatory physical temperature check by staff at random intervals, independent of the IoT sensor readings.
   • CIncrease the frequency of sensor data logging to detect the attack faster.
   • DDisconnect the cold storage sensors from the network and rely on manual temperature checks only.
   Reveal Solution Discussion Select an answer first
4. 28application · medium

   A chemical plant uses IoT-enabled pressure sensors to monitor storage tanks. The sensors transmit readings to a central SCADA system over an unencrypted wireless protocol. An attacker spoofs sensor data to show normal pressure while the actual tank pressure rises to dangerous levels. What is the most immediate safety concern from this scenario?

   • AThe spoofed readings could delay emergency response, allowing the tank to rupture and cause an industrial explosion.
   • BThe wireless protocol could interfere with workers' pacemakers, causing cardiac events.
   • CThe unencrypted protocol violates data privacy regulations for industrial control systems.
   • DThe attacker could steal proprietary chemical formulas from the SCADA database.
   Reveal Solution Discussion Select an answer first
5. 29expert · hard

   A municipal water treatment plant uses IoT sensors to monitor chlorine levels and control the dosing system. An attacker compromises the sensor network and reports false 'low chlorine' readings, causing the automated system to inject excessive chlorine into the water supply. The plant's safety protocol requires a manual verification step before any alarm is raised. What is the most effective immediate action to prevent a public health crisis?

   • AIncrease the frequency of sensor data transmissions to the central system to detect the attack faster.
   • BTemporarily switch the chlorination system to manual control and require a physical water sample test before any dosing adjustments are made.
   • CDisconnect the entire water distribution network from the internet to prevent further attacks.
   • DImplement a new encryption protocol for the sensor data to prevent the attacker from sending false readings.
   Reveal Solution Discussion Select an answer first
6. 30expert · hard

   A chemical plant has an IoT-based safety system that monitors for toxic gas leaks and automatically triggers ventilation and alarms. The system's sensors are connected to the same network as the plant's administrative office systems. A phishing attack compromises an office computer, which is then used to send false 'safe' readings to the safety system, suppressing a real gas leak alarm. The plant manager must decide on a mitigation that balances safety with operational continuity. What is the most effective approach?

   • AImplement a new firewall rule to block all traffic from the office network to the safety system.
   • BIncrease the sensitivity of the gas sensors so they can detect even smaller leaks.
   • CSegment the network so the safety system is on an isolated, air-gapped network with no connection to the office systems.
   • DSchedule more frequent manual inspections of the plant to check for gas leaks.
   Reveal Solution Discussion Select an answer first