QUESTION: 77

Which of these is the correct explanation regarding the following methods? (1)android.content.Context.sendBroadcast (2)android.content.Context.startActivity

Both methods are defined by overloading.
Both methods throw an exception.
Both methods are asynchronous.
Both methods are able to broadcast an Intent.

Answer(s): D

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QUESTION: 78

Which of the following is incorrect about ProgressDialog?

ProgressDialog inherits from the AlertDialog class.
ProgressDialog can be set as 2 types of style: STYLE_HORIZONTAL and STYLE_SPINNER.
ProgressDialog is able to apply a custom XML-defined layout by using the setContentView(...) method.
ProgressDialog can be freely configured to use a Drawable class to display as its progress bar.

Answer(s): C

Explanation:

Incorrect:
A: ProgressDialog extends the AlertDialog class.
B: STYLE_HORIZONTAL creates a ProgressDialog with a horizontal progress bar. STYLE_SPINNERcreates a ProgressDialog with a circular, spinning progress bar.

Reference:

http://developer.android.com/reference/android/app/ProgressDialog.html

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QUESTION: 79

Which of these is the correct function of Traceview?

Displays a graphical task execution log.
Displays graphically a memory acquisition and release log
Displays graphically the call stack.
Displays graphically the Ul state hierarchy.

Answer(s): A

Explanation:

Traceview is a graphical viewer for execution logs saved by your application. Traceview can help you debug your application and profile its performance.

Reference:

http://developer.android.com/tools/help/traceview.html

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QUESTION: 80

Which of the following is the correct way to add access permission to your application?

Add a <uses-permission> tag as a child tag of the <manifest> tag in AndroidManifest.xml
Add a <add-permission> tag as a child tag of the <manifest> tag in AndroidManifest.xml.
Add a <uses-permission> tag as a child tag of the <application> tag in AndroidManifest.xml.
add a <permission> tag as a child tag of the <application> tag in AndroidManifest.xml

Answer(s): A

Explanation:

If an application needs access to a feature protected by a permission, it must declare that it requires that permission with a <uses-permission> element in the manifest. Then, when the application is installed on the device, the installer determines whether or not to grant the requested permission by checking the authorities that signed the application's certificates and, in some cases, asking the user. If the permission is granted, the application is able to use the protected features. If not, its attempts to access those features will simply fail without any notification to the user.

Reference:

http://developer.android.com/guide/topics/manifest/manifest-intro.html

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QUESTION: 77

QUESTION: 78

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QUESTION: 79

Explanation:

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QUESTION: 80

Explanation:

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