Android Android Certified Trainer AND-801 Questions & Answers

• Question 11:

  Check the following image, and then select which of the following choices defines the Infer Constraints" button of the Android Studio tool bar?

  

  A. It is used to run Android wizard to add new type of Android emulator.

  B. It is used to import Another Android app to the existing app.

  C. It is used to start Android publishing wizard.

  D. It is used to set me constraints (margins) of any Android widget such as Text View or Button by selecting the widget, then circling Infer Constraints" button.

  Correct Answer: D

• Question 12:

  Fill in the blank space in the following sentence with the correct choice: To configure your style as the theme for all your app activities (entire app). open AndroidManifest.xml, and set the theme by adding android:theme="@style/your_style_name'' attribute to the.........................

  A.

  B.

  C.

  D.

  Correct Answer: B

• Question 13:

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

  

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

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

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

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

  Correct Answer: B

• Question 14:

  The following Android code displays a Toast message. Which of the following is the correct parameter to replace Toast.xyz in this line of code? Toast.makeText(this,"Message saved as draff ,Toast.xyz).show()

  A. Toast.sec.4

  B. Toasst.shortTime

  C. ToastiLEMGTH_LONG

  D. Toast. Time.4s

  Correct Answer: C

• Question 15:

  As an Android developer, to change the font size of a text in Android layout, you should use attribute

  "android:textSize".

  Which of the following choices is the recommended syntax to change the font size to 18?

  A. android:textSize=18sd"

  B. androtd:textSize="18sp"

  C. android:textSize=-"18point"

  D. android:TextSize=18dp"

  Correct Answer: B

• Question 16:

  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?

  

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

  B. This permission tag allows this app to connect to the Internet.

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

  D. This permission tag allows this app to connect to its SQLite database.

  Correct Answer: B

• Question 17:

  If you want to configure a link between two Android activities in the same Android application, you need to use:

  A. Progressbar

  B. Toast

  C. Intent

  D. Gradle

  Correct Answer: C

• Question 18:

  Which of the below choices is the best answer to fill the empty space in the following sentence? If you want to give all text widgets in an app the same format such as font color, font size, and font family, you should add the style attribute to the TextView XML tags in layout file and set the attribute value to the same style name. You should define that style by adding a new style tag "style name-style_name" inside...............................

  A. AadroiddManifest-xml file

  B. activity_main.xml file

  C. stytes.xml file

  D. MainActivity.java or MainActivity.kt file

  Correct Answer: C

• Question 19:

  You have an Android application that consists of two activities (MainActivity and SecondActivity) and you

  want to pass data in text field (ID: FirstNameJD) of MainAcitivity to SecondActivity. The passed data will appear in SecondActivity inside a TextView widget with Id: HelloMessageJD. You will use Intent to pass this data from MainActivity to SecondActivity. The Following two images include the Android code which will be written in MainActivity.kt and SecondActivity.kt files. Your data will not pass from MainActivity to SecondActivity due to a mistake in the code in SecodActivity.kt. Which of the following choices is a correct solution to make this app run correctly?

  

  A. Add startActivity(intent) to Secondryactivity.kt

  B. Replace getStringExtra("name") with putSiringExtra( "name") in SecondActiy.kt file

  C. You need to add an if statement to solve this issue in the two files

  D. Replace ''name'' with ''pass'' in intent.getSt4ingExtra( ''name'')

  Correct Answer: D

• Question 20:

  Which of the following choices is the main role of the Preview button which is illustrated in the red circle of the vertical Android Studio tool bar?

  

  A. It shows the activity blue print preview mode.

  B. It shows the Java or Kotlin code of an activity.

  C. It shows the activity layout in print review.

  D. It shows the activity layout in text (XML) and design mode at the same time.

  Correct Answer: D