Android Android Certified Trainer AND-801 Questions & Answers

• Question 31:

  The following images include an Android code for SeekBar (id: MyseekBar) and one state of its operation. What does "Result" represent in this code?

  

  A. Result is the seekbar id.

  B. No any role for Result in this code.

  C. Result is the id of TextView widget which will show the result messages of SeekBar operation.

  D. Result is the maximum value of SeekBar steps that can be moved.

  Correct Answer: C

• Question 32:

  Which of the following choices is the best answer to fill the empty space in the following sentence? Adding a new color to the colors.xml file in Android Studio (/res/values/colors.xml) helps the app developers to use this new color as attribute value for the . ..............attribute in all these app layouts.

  A. Java:textcolor

  B. color:textformat

  C. android:textcolor

  D. kotlin:textcolor

  Correct Answer: C

• Question 33:

  The following Android code will show the small popup message "Message saved as draft" for 3.5 seconds, and then automatically disappears: Toast.makeText(this, "Message saved as draft". Toast.LENGTH_LONG).show()

  A. True

  B. False

  Correct Answer: A

• Question 34:

  The following image displays an AndroidManifest.xml file for an Android app. Which of the following choices is correct about this file?

  

  A. This app consists of two activities and MainActlvity is the launcher activity.

  B. This app consists of two activities and Second is the launcher activity

  C. This app consists of three activities and MainActlvity is the launcher activity.

  D. This app consists of one activity and MainActlvity is the launcher activity.

  Correct Answer: A

• Question 35:

  Check the following image, and then select which of the following choices is the correct Android method to add a marker on Google maps?

  

  A. GoogleMap.MARkerlist

  B. GoogleMap.addMarker

  C. GoogleMap-Markerpost

  D. GoogleMap-GoogleMakerAdd

  Correct Answer: B

• Question 36:

  The following Android code locates Toronto CN tower on Google map using on the latitude and longitude

  coordinates.

  Which of the following choices is the correct choice to show your Google map in the zoom-in state?

  

  A. Replace: GMap.moveCameralCameraaUpdateFactory.newLatLng(cnToiwf)) with: GMap.moveCameta{CameraUpdaieFaclory.newtalLnoZoom(cnTowerT16f)0

  B. We can only show a position on Google map and we don't have permission to modify the zoom level

  C. Change the coordinates value to get the zoom level what we need

  D. Add the following code: GoogleMapZoom(60)%

  Correct Answer: A

• Question 37:

  What does the following code snippet do?

  

  A. Creates a FrameView.

  B. Creates a Cradview.

  C. Creates a RecyclerView.

  D. Creates a ListView-

  Correct Answer: C

• Question 38:

  The SharedPreferences class provides a general framework that lets you save and retrieve persistent key-value pairs of primitive data types.

  A. False

  B. True

  Correct Answer: B

• Question 39:

  The following image includes Android code for an app that contains a button with an id : "Downloadbutton".

  When the app user clicks this button, a progress bar with id: "progressBar" will show up.

  What will happen if you change *'rate+=10" illustrated with green underlined text to "rate+=50"?

  

  A. No any change m progress bar work.

  B. The progress bar will finish within two steps only.

  C. You will get error and the app will not work.

  D. The progress bar will work before slowly than before.

  Correct Answer: B

• Question 40:

  Which of the following is true about the following line of code: button.setOnClickListener({})

  A. It sets the time and date of run process.

  B. The system executes the code you write in setOnClickListener({ }) after the user presses the button.

  C. It only saves changes in a text field.

  D. It sets the number of clicks the user presses to run the application.

  Correct Answer: B