Question 1

The ____________ method allows fundamental setup for the activity, such as declaring the user interface, defining member variables, and configuring some of the UI.

Accepted Answer

onCreate()

Question 2

You can create your layout in Android using HTML.

Accepted Answer

False

Question 3

Android is a mobile operating system based on Linux.

Accepted Answer

True

Question 4

In May 2015, Android introduced the fingerprint authentication under the _____________.

Accepted Answer

Android 6.0

Question 5

Every listener has a function (callback method) that is overridden when implementing a concrete listener.

Accepted Answer

True

Question 6

There is a runtime check for the layout width and height, so if you fail to specify a size, an exception is thrown at runtime.

Accepted Answer

True

Question 7

If you want to access an image from your res folder to your Java code, what command you should use?

Accepted Answer

R.drawable.image

Question 8

This callback method is called when the user navigates back to the screen of your application after using another/different application.

Accepted Answer

onRestart()

Question 9

We can use our own Android device to run our application from Android Studio.

Accepted Answer

True

Question 10

A ListView is a type of AdapterView that displays a vertical list of scroll-able views and each view is placed one below the other.

Accepted Answer

True

Question 11

Android 1.0 is also known as Cupcake.

Accepted Answer

True

Question 12

_________ class contains resource IDs for all the resources available in your directory.

Accepted Answer

R

Question 13

When you switch from one activity to another, the first activity will no longer be visible on your screen, in this case, the callback method ___________ is called.

Accepted Answer

onStop()

Question 14

Linear layout is an example of ______________.

Accepted Answer

ViewGroup

Question 15

_______________ are additional files and static content that your code uses, such as bitmaps, layout definitions, etc.

Accepted Answer

Resources

Question 16

After API Level 8 and higher versions, the match_parent is renamed as fill_parent.

Accepted Answer

False

Question 17

All image resources/assets that you need in your application are save under what folder?

Accepted Answer

drawable

Question 18

Consider the given resources below: #2196f3 MyApp How will you access the string resource in your xml file?

Accepted Answer

@string/myapp

Question 19

Using collections, items are inserted into the list of ListView from an array or database.

Accepted Answer

False

Question 20

Complete the statement, you are going to instantiate a TextView from your XML to your Activity Java file.

TextView myTextView = (TextView) ________________(R.id.my_textview);
Answer: 
Incorrect answer:
@.id.my_textview

Accepted Answer

findViewById

Question 21

A service is a component that runs in the background to perform long-running operations.

Accepted Answer

True

Question 22

We can not instantiate UI elements during runtime.

Accepted Answer

False

Question 23

It is a ViewGroup which is used to specify the position of child View instances relative to each other or relative to the parent.

Accepted Answer

Relative Layout

Question 24

n Android, the OnClickListener() interface has an onClick(View v) method that is called when the view (component) is clicked.

Accepted Answer

True

Question 25

Users can drag the PiP window to another location. Starting in Android _____.

Accepted Answer

8

Question 26

By tapping the Build number field 7 times in your Android phone will enable you to have the Developer Option.

Accepted Answer

True

Question 27

We can create our own Android Virtual Device (AVD) in the Android Studio Emulator and manage it in the Device Manager.

Accepted Answer

True

Question 28

The Android Emulator simulates Android devices on your computer so that you can test your application on a variety of devices and Android API levels without needing to have each physical device.

Accepted Answer

True

Question 29

At its core, the operating system is known as Android Open Source Project (AOSP) and is free and open-source software (FOSS) primarily licensed under the Apache License.

Accepted Answer

True

Question 30

All XML files are stored in resources folder under what specific folder name?

Accepted Answer

layout

Question 31

The onCreate() and onDestroy() methods are called only once throughout the activity lifecycle.

Accepted Answer

True

Question 32

The Logcat window in Android Studio helps you debug your app by displaying logs from your device in real time.

Accepted Answer

True

Question 33

Adaptive Brightness is a feature that was introduce under Android Oreo.

Accepted Answer

False

Question 34

It is inefficient to set the content in onResume() or onStart() (which are called multiple times) as the setContentView() is a heavy operation.

Accepted Answer

True

Question 35

A predefined subclass of TextView that includes rich editing capabilities.

Accepted Answer

EditText

Question 36

Complete the XML code below that access the image named 'mymomo.png' from the resources :

<ImageView
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:src="________________" />
Answer:

Accepted Answer

@drawable/mymomo

Question 37

Complete the Java code that implements OnClickListener using XML by indicating the parameter. Use the variable name "dubu" without the double quotation.

public void myFancyMethod(_________) {
     // do something
}
Answer:

Accepted Answer

View dubu

Question 38

This file contains the application components, it describes each component of the application and how they interact.

Accepted Answer

AndroidManifest.xml

Question 39

In Android’s activity life cycle, this is the first method that is called when the activity is created.

Accepted Answer

onCreate()

Question 40

The match_parent is used to wrap the view according to its actual size. It can be used with layout_height as well as layout_width.

Accepted Answer

False

Question 41

TextView is an example of ________.

Accepted Answer

View

Question 42

A listener (or observer) is an abstract class or interface that is used to provide functionality for an interactable UI component.

Accepted Answer

True

Question 43

Complete the statement, you are going to change the string value in a given TextView using your Activity Java file.

helloTextView.___________(R.string.user_greeting);

Accepted Answer

setText

Question 44

Button btn = findViewById(R.id.my_btn);

btn._______________(new View.OnClickListener() {
      @Override public void onClick(View v) {
          // Functionality for the button...
     }
});

Accepted Answer

setOnClickListener

Question 45

The onPause() method is required for any kind of Activity run the application properly.

Accepted Answer

False

Question 46

UI elements that are drawn on-screen including buttons, list forms etc.

Accepted Answer

Views

Question 47

Accepted Answer

onClick

Question 48

All view groups include a width and height, using layout_width and layout_height , and each view is required to define them

Accepted Answer

True

Question 49

The onResume() callback method is called whenever the activity becomes visible to the user.

Accepted Answer

False

Question 50

In Android, we can implement the OnClickListener in XML by calling the method in the attribute named ______.

Accepted Answer

onClick

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