Asynchronous Processes and Threading Quiz

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What lifecycle hook can be used to check the orientation every time the component becomes active?

componentWillMount (correct)

componentDidMount

componentDidUpdate

componentWillUpdate

Which property can be set in the View to call a function when a layout is triggered?

onCheck

onPress

onLayout (correct)

onRender

In React Native, what type of View can be used to display external content from a webpage?

WebView (correct)

ScrollView

Modal

ImageBackground

What library in React Native is used for linking external sites or other apps on the device?

Linking Signup and view all the answers

When using static URLs with WebView, what property is set with the URL of the webpage to display?

url Signup and view all the answers

In React Native, what navigation element is used in the example to switch between a list of buttons and a WebView?

StackNavigator Signup and view all the answers

What is the main benefit of using an asynchronous process in programming?

Avoiding holding up the entire program for one long step Signup and view all the answers

In what scenario would using an asynchronous process NOT be beneficial?

When immediate completion of all tasks is required Signup and view all the answers

What role does the call back function play in an asynchronous process?

It alerts the main thread about the completion of the asynchronous task Signup and view all the answers

How does threading help in implementing an asynchronous process?

By delegating tasks to another thread, allowing them to run concurrently Signup and view all the answers

Which statement best describes the purpose of starting an asynchronous process in a main thread?

To allow the main thread to continue executing without waiting for the asynchronous task to complete Signup and view all the answers

When would a program benefit from using synchronous processing instead of asynchronous processing?

When real-time responses are required Signup and view all the answers

What is the purpose of the 'Activity Life Cycle' in Android development?

To manage the creation and destruction of activities in the app Signup and view all the answers

How do Android life cycles differ from the general sequence of events mentioned in the text?

Android life cycles refer to a set of steps within the Main Loop phase for each view Signup and view all the answers

What analogy is used to describe the Android life cycles in relation to threads?

Android life cycles are akin to individual threads within a larger sequence Signup and view all the answers

What role does the 'Activity class' play in Android development?

It creates windows for UI elements and interacts with users Signup and view all the answers

In which phase of the app's life cycle does the 'Activity Life Cycle' become crucial?

Main Loop phase Signup and view all the answers

How can the 'Activity Life Cycle' be defined in Android terms?

'Activity Life Cycle' denotes handling activities and UI interaction in Android apps Signup and view all the answers

What are the main folders in the Data Container for storing data?

Documents, Library, Temp Signup and view all the answers

What is the primary advantage of using remote storage?

Ability to access data from any device Signup and view all the answers

Why is setting up remote storage more complicated than local storage?

Requires networking setup Signup and view all the answers

What is the major disadvantage of relying on remote storage for data?

Dependence on network connection Signup and view all the answers

In what scenario can remote storage be particularly beneficial for users?

When users need access to their data across different devices Signup and view all the answers

How does remote storage typically compare to local storage in terms of capacity?

Remote storage is often larger Signup and view all the answers

What is the recommended approach when the network connection drops?

Save any changes the User makes and POST them after connection is restored Signup and view all the answers

What is the purpose of having a variable in state to track the network connection status?

To track if the user is online or offline Signup and view all the answers

What role does the NetInfo package play in syncing data?

It determines the network state and notifies when it changes Signup and view all the answers

Why is it important to use lifecycle hooks when detecting changes made by the User?

To ensure immediate response to any user action Signup and view all the answers

What does setting a flag for queued changes help achieve in the sync process?

Helps in identifying which changes need to be re-sent after connection restoration Signup and view all the answers

What role does the callback function play in handling queued changes during connection restoration?

Calls the POST function to submit any queued changes Signup and view all the answers