Virtual Labs

To create IoT Dashboard for remote monitoring

1. How do ThingSpeak and Blynk dashboards differ?

a: ThingSpeak is web-based, Blynk is app-based Explanation

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b: Both are only app-based Explanation

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c: Blynk is web-based and ThingSpeak is only mobile Explanation

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d: Both support only offline dashboards Explanation

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2. Why are real-time charts important in IoT?

a: They make dashboards colorful Explanation

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b: They show sensor changes immediately for monitoring Explanation

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c: They reduce power consumption Explanation

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d: They replace sensors completely Explanation

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3. How can dashboards improve user experience?

a: By allowing users to visualize data clearly Explanation

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b: By reducing the number of sensors Explanation

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c: By disabling notifications Explanation

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d: By hiding sensor information Explanation

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4. What is the role of widgets in IoT dashboards?

a: Display and control data visually Explanation

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b: Store data permanently Explanation

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c: Connect Wi-Fi automatically Explanation

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d: Test hardware components Explanation

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5. How can GPS data be visualized on dashboards?

a: Using a map widget Explanation

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b: Using a buzzer Explanation

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c: Using a numeric display only Explanation

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d: Using a slider Explanation

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6. Why do dashboards require continuous data updates?

a: To reduce cloud bill Explanation

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b: To keep displayed information accurate and live Explanation

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c: To slow down system processing Explanation

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d: To prevent sensors from working Explanation

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7. What challenge occurs if sensor data is irregular?

a: Dashboards become faster Explanation

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b: Graphs appear unstable and unreliable Explanation

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c: Widgets disappear Explanation

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d: Wi-Fi becomes stronger Explanation

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8. How is a Node-RED dashboard built?

a: By arranging nodes and UI widgets in a flow Explanation

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b: By writing only C++ code Explanation

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c: By uploading Excel files Explanation

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d: By using only hardware connections Explanation

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9. Which of the following is an example of remote monitoring?

a: Checking home temperature from another city Explanation

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b: Watching a recorded video Explanation

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c: Using a local switch Explanation

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d: Reading data manually Explanation

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10. How do IoT dashboards support decision-making?

a: By displaying trends that help users take actions Explanation

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b: By replacing microcontrollers Explanation

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c: By deleting old data Explanation

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d: By blocking user inputs Explanation

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