1. What is the main reason we use AsynchTasks in our apps?
To keep our apps responsive during network or database calls.
Because AsynchTask is such a cool-sounding class name.
Because we can.

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2. What method in an AsynchTask must always be implemented?
onPreExecute
doInBackground
onProgressUpdate
onPostExecute

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3. What is used for a parameter type in an AsynchTask if there is no parameter?
null
Null
void
Void

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