Here is a concise answer to your Android interview question comparing Intent, Sticky Intent, and Pending Intent:
Intent
An Intent is a messaging object used to request an action from another app component[1].
Intents can be used to start activities, services, and broadcast receivers[1].
There are two types of Intents: explicit (specifies the component) and implicit (specifies an action to perform)[3].
Sticky Intent
A Sticky Intent is a broadcast Intent that sticks around after it's been broadcast[1].
When a sticky broadcast is sent, the system holds onto the final data content of the Intent and keeps it around for any new receivers[1].
Sticky Intents are deprecated as of Android 5.0 (API level 21) and should not be used in new apps[1].
Pending Intent
A PendingIntent is a token that you give to a foreign application (e.g. NotificationManager, AlarmManager, Home Screen AppWidgetManager) which allows the foreign app to use your app's permissions to exec...
