Bird
0
0

Which component is essential for a Raspberry Pi real-time sensor dashboard to update data continuously?

easy🧠 Conceptual Q2 of 15
Raspberry Pi - Web Server and API
Which component is essential for a Raspberry Pi real-time sensor dashboard to update data continuously?
AA manual refresh button only
BA static HTML page without scripts
CA one-time sensor data read at startup
DA loop that reads sensor data repeatedly
Step-by-Step Solution
Solution:

  1. Step 1: Identify how continuous updates happen

    Continuous updates require repeatedly reading sensor data in a loop.

  2. Step 2: Compare options for updating data

    Static pages or one-time reads do not update automatically; manual refresh is not continuous.

  3. Final Answer:

    A loop that reads sensor data repeatedly -> Option D

  4. Quick Check:

    Continuous update = loop reading [OK]
Quick Trick: Continuous updates need loops, not static or one-time reads [OK]
Common Mistakes:
MISTAKES
  • Choosing static pages thinking they update automatically
  • Confusing manual refresh with automatic continuous update
  • Assuming one-time read is enough for real-time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Raspberry Pi Quizzes
Automation and Scheduling - systemd service for auto-start - Quiz 6medium Automation and Scheduling - Why automation runs tasks without human intervention - Quiz 3easy Data Logging and Databases - Why data logging matters for IoT - Quiz 11easy MQTT for IoT - MQTT broker setup (Mosquitto) - Quiz 4medium MQTT for IoT - Multi-device MQTT network - Quiz 2easy Security and Deployment - Remote monitoring and management - Quiz 9hard Security and Deployment - Headless deployment setup - Quiz 1easy Web Server and API - WebSocket for live updates - Quiz 5medium Web Server and API - REST API for IoT device - Quiz 11easy Web Server and API - Flask web server on Raspberry Pi - Quiz 2easy