Android AND-801 Exam Practice Test Instant Access

Question 1

Check the following image which includes Android code for a sum calculator. Which of the following choices is correct about this Android code?

AThe sum result will not appear on the app until adding another print out method.

BThe sum result of N1 and N2 will appear in result_view TextView widget when the user clicks button_sum button.

CThe sum result will not work, because N1 and N2 must be changed to Integer first.

DYou must add input method to this code to enter the value of N1 and N2 numbers.

Answer : B

Question 2

The code snippet below displays a menu which is illustrated in another image. The emulator image displays a menu that contains three items, but in the code file none of these menu items are available. Where do these items come from?

AThis file will not show any menu items.

BAs illustrated in the code, these items are already added in the resource the called menu.xml and this file exists m a container called menu.

CThese menu items are already added to AndroidManitfest,xml file.

DThese items are added in activity_main.xml file.

Answer : B

Question 3

Which of the following files has the correct name for a layout design file of an activity in an Android app?

AGradle.sql

BMainActivity,java or MainActivity.kt

CSample.class

Dctivity_ main.xml

Answer : D

Question 4

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

AIt sets the time and date of run process.

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

CIt only saves changes in a text field.

DIt sets the number of clicks the user presses to run the application.

Answer : B

Question 5

Check the following image which is a part of AndroidManifest.xml file, then select which of the following choices is the correct description of the gray highlighted color of this code?

AThis permission tag allows other apps to make remote connection to this app.

BThis permission tag allows this app to connect to the Internet.

CThis permission lag has been written in the wrong location, it must be written inside tag.

DThis permission tag allows this app to connect to its SQLite database.

Answer : B

Question 6

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"?

ANo any change m progress bar work.

BThe progress bar will finish within two steps only.

CYou will get error and the app will not work.

DThe progress bar will work before slowly than before.

Answer : B

Question 7

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?

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

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

CChange the coordinates value to get the zoom level what we need

DAdd the following code: GoogleMapZoom(60)%

Answer : A

Android AND-801 Android Application Development v8 Exam Practice Test