What does the following code do?

   public boolean isOnline() {

   ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

   NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();

   return (networkInfo != null && networkInfo.isConnected());

}

Which are correct with regards to running of the Sync Adapter? A) Running sync adapter in response to a user request. B) Running sync adapter periodically by setting a period of time to wait between runs, or by running it at certain times of the day, or both.

Which are correct with regards to calling place GoogleAuthUtil.getToken()? A) call getToken() on the UI thread B) call getToken() on AsyncTask

Which protocols are provided by Google for GCM Connection Servers? A) HTTP B) XMPP C) SOAP D) RMI

Which 4 classes does not relate to others? ApplicationInfo, SyncInfo, ActivityInfo, PackageInfo

Valid ways to deploy an Android application to a device?

Which are appropriate for saving the state of an Android application?

Which is correct to use for data transfer regularly and efficiently, but not instantaneously?

Which packages provide the classes required to manage the Bluetooth functionality on an Android device?

Correct way to fix if checking the status of the GPS_PROVIDER throws SecurityException?

Which are Android build modes?