Android Studio - 12 - Logging and Logcat in Android MCQ

Android Studio – 12 – Logging and Logcat in Android

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1. What is the primary purpose of logging in Android apps?

To create user interfaces for the app

To monitor and record app behavior

To run the app on an emulator

To display ads in the app

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2. What is Logcat in Android development?

A device for making phone calls

A tool for creating user interfaces

A type of emulator

A logging system for capturing and viewing logs

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3. Which tool is commonly used to view logs in Android Studio?

Layout Editor

Logcat

Profiler

Debugger

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4. What is the purpose of Logcat in Android Studio?

To display ads in the app

To make phone calls

To create user interfaces for the app

To capture and view logs

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5. How can you print log messages in your Android app?

By creating user interfaces

By making phone calls

By running the app on an emulator

By using the Logcat tool

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6. What is the primary benefit of using log messages in Android apps?

To create user interfaces for the app

To monitor and diagnose app behavior

To make phone calls

To display ads in the app

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7. What is the syntax for printing a log message in Android using Logcat?

Log.d("Tag", "Message content")

System.out.println("Message content")

log.message("Message content")

Debug.log("Message content")

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8. In the syntax for printing a log message in Android using Logcat, what does “Tag” represent?

The log message content

A unique identifier for the log message

The name of the app

The message severity level

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9. Which of the following log message severity levels is the highest and most severe?

Info

Error

Verbose

Debug

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10. What is the purpose of using different log message severity levels?

To change the app's layout

To run the app on an emulator

To determine the app's version

To categorize and filter log messages

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11. Which log message severity level is typically used for messages related to debugging and development?

Error

Info

Debug

Verbose

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12. What is the purpose of the Logcat filter in Android Studio?

To display ads in the app

To monitor app performance

To categorize and filter log messages

To create user interfaces for the app

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13. How can you create a Logcat filter in Android Studio?

By clicking on the "Run" button

By uninstalling the app

By using the "Filters" menu

By changing the app's layout

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14. What is the purpose of the “Log” class in Android?

To make phone calls

To create user interfaces for the app

To provide methods for logging

To display ads in the app

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15. Which method from the “Log” class is used to print a debug log message?

Log.error("Message content")

log.debug("Message content")

Log.info("Message content")

Log.d("Tag", "Message content")

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16. Which method from the “Log” class is used to print an error log message?

Log.debug("Message content")

Log.info("Message content")

Log.d("Tag", "Message content")

log.error("Message content")

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17. What is the purpose of adding a “Tag” to log messages in Android?

To display ads in the app

To categorize and filter log messages

To make phone calls

To change the app's layout

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18. What is the Android Logcat’s default log message severity level filter?

Info

Verbose

Error

Debug

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19. How can you filter Logcat messages by a specific log message severity level in Android Studio?

By changing the app's layout

By selecting the desired severity level

By uninstalling the app

By clicking on the "Run" button

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20. What is the purpose of the “Tag” field when creating a Logcat filter in Android Studio?

To specify the log message severity level

To make phone calls

To display ads in the app

To categorize and filter log messages

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21. How can you clear the Logcat logs in Android Studio?

By shaking the emulator's window

By clicking on the "Clear" button

By uninstalling the app

By using the "Run" button

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22. Which of the following statements is TRUE regarding Logcat in Android Studio?

Logcat creates user interfaces for the app

Logcat displays ads in the app

Logcat captures and displays log messages

Logcat makes phone calls

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23. What is the purpose of using log messages with different log message severity levels?

To change the app's layout

To categorize and filter log messages

To display ads in the app

To make phone calls

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24. What does the Logcat “Verbose” log message severity level indicate?

General information

Debugging information

A non-fatal error that requires attention

A fatal error that crashes the app

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25. Which of the following log message severity levels is the lowest and least severe?

Error

Debug

Verbose

Info

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26. How can you view Logcat logs for a specific device or emulator in Android Studio?

By using the "Devices and Emulators" window

By clicking on the "Run" button

By uninstalling the app

By selecting a device from a dropdown menu

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Android Studio – 12 – Logging and Logcat in Android MCQ