SA1 REVIEWER

The Dalvik VM enables every Android application to run in its own process, with its own instance of the Dalvik virtual

machine.

True

False

True

One of the major update on Android Pie is ______________.

PIP Mode

Material Design

Adaptive Brightness

Fingerprint Authentication

Adaptive Brightness

Android 4.4 is also know as _______________.

Marshmallow

Nougat

Pie

Kitkat

Kitkat

Android is a proprietary and only Google is allowed to use it.

True

False

False

Android is a mobile operating system based on Windows.

True

False

False

Multi-window support was introduce in Android ________________.

Nougat

Pie

Kitkat

Marshmallow

Nougat

In Android architecture, Activity Manager falls under ________________.

Application Framework

Applications

Linux Kernel

Android Runtime

Application Framework

The top layer of the android architecture is _______________. The native and third-party applications like contacts, email, music, gallery, clock, games, etc. whatever we will build those will be installed on this layer only.

Android Runtime

Platform Libraries

Application Framework

Applications

Applications

Google purchased Android in what year?

2005

1999

2012

2001

2005

The first release of Android with a dessert codename is ___________.

Android 1.5

Android 1.8

Android 1.0

Android 1.2

Android 1.5

In Kotlin, it is possible to inherit class properties and functions from one class to another.

True

False

True

What is the correct way to create an object called myObj of the class MyClass?

myObj : MyClass()

MyClass.new myObj

myObj = new MyClass()

val myObj = MyClass()

val myObj = MyClass()

What is the fname known as in the following code: fun myFunction(fname: String)

range

inherit

parameter

override

parameter

What is the output of the following code: println(5 > 3 && 5 < 10)

true

null

false

undefined

true

In Kotlin, how can you create a variable with the numeric value 5

num =. 5

val num = 5

int num = 5

num = 5 int

val num = 5

How can you create a variable with the floating number 2.8?

double num = 2.8

float num = 2.8

val num = 2.8

num = 2.8 float

val num = 2.8

Array indexes start with:

nil

-1

0

1

0

In Kotlin, code statements must end with a semicolon (;)

True

False

False

Which of the following is used to declare an array in Kotlin?

arrayOf()

[]

new array()

array()

arrayOf()

How do you insert COMMENTS in Kotlin code?

-- this is my comment

% this is my comment

# this is my comment

// this is my comment

// this is my comment

What is a correct syntax to output "Hello World" in Kotlin?

Console.WriteLine("Hello Gwapo");

cout<

println("Hello Gwapo")

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

Receivers

Activities

Resources

Services

Resources

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

R.id.image

R.drawable.image

R.res.image

res/drawable/image

R.drawable.image

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

Layouts

Views

Intents

Fragments

Views

All application components in an Android application can be observed in the MainActivity.java file.

True

False

False

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

ID

R

xml

res

R

An Android ______ is one screen of the app's user interface.

Activity

An activity is similar to ______ in a desktop application.

Windows

An Android app starts by showing the main ______.

Activity

An Android activity goes through a certain life ______ during its existence.

Cycle

All activities are subclasses of android.app.______

Activity

The Activity class contains methods that correspond to the life cycle ______.

States

The first callback called when the activity is created is ______.

onCreate()

The callback called when the activity becomes visible is ______.

onStart()

The callback called when the user starts interacting with the app is ______.

onResume()

The callback called when the activity is being paused is ______.

onPause()

A paused activity does not receive user ______ and cannot execute code.

Input

The callback called when the activity is no longer visible is ______.

onStop()

The callback called before the activity is destroyed is ______.

onDestroy()

The callback called when the activity restarts after stopping is ______.

onRestart()

All activities must be declared in the ______ file.

Manifest

In the manifest an activity is declared inside the ______ element.

UI components are loaded from XML files stored in the ______ folder.

res/layout

The method used to set the activity's layout is ______.

setContentView()

In a Kotlin Android project the main logic file is ______

MainActivity.kt

In a Kotlin Android project the main layout file is ______

activity_main.xml

Step 1 of creating a Kotlin project: Select the ______ for your application.

Layout

Step 2 of creating a Kotlin project: Write the application name and select the language ______.

Kotlin

Step 3 of creating a Kotlin project gives you two files: MainActivity.kt and ______.

activity_main.xml

Application components are the essential building blocks of an Android _______

application

The configuration file that describes each component and how they interact is called _______

AndroidManifest.xml

An _______ represents a single screen with a user interface

Activity

An activity is implemented as a subclass of the _______ class

Activity

A _______ runs in the background to perform long-running operations

Service

A service is implemented as a subclass of the _______ class

Service

_______ simply respond to broadcast messages from the system or other applications

Broadcast Receivers

A broadcast receiver is implemented as a subclass of the _______ class

BroadcastReceiver

A _______ supplies data from one application to others on request

Content Provider

A content provider is implemented as a subclass of the _______ class

ContentProvider

A portion of a user interface in an Activity is called a _______

Fragment

UI elements that are drawn on screen including buttons, lists, and forms are called _______

Views

View hierarchies that control screen format and appearance are called _______

Layouts

Messages wiring components together in Android are called _______

Intents

External elements such as strings, constants, and drawable pictures are called _______

Resources

The configuration file for the application is called the _______

Manifest

Resources in Android are maintained in the _______ directory

res/

XML files that define Property animations are stored in _______

animator/

XML files that define Tween animations are stored in _______

anim/

XML files that define a state list of colors are stored in _______

color/

Image files like .png, .jpg, .gif or XML drawable files are stored in _______

drawable/

XML files that define a user interface layout are stored in _______

layout/

XML files that define application menus are stored in _______

menu/

Arbitrary files saved in their raw form are stored in _______

raw/

Simple values such as strings, integers, and colors are defined in _______

values/

Arbitrary XML files for runtime use such as configuration are stored in _______

xml/

Font files such as .ttf, .otf, or XML font-family definitions are stored in _______

font/

To set an image resource in code from drawable, you use _______

setImageResource(R.drawable.myimage)

String resources are defined in the file _______

res/values/strings.xml

To set the layout of an activity in code you use _______

setContentView(R.layout.activity_main)

In XML, to reference a color resource you use _______

@color/resource_name

In XML, to reference a string resource you use _______

@string/resource_name

Kotlin was released in ____ by JetBrains.

2016

Kotlin is fully interoperable with _____.

Java

Kotlin is cross-platform and works on _____.

Windows, macOS, Linux, Raspberry Pi

Kotlin is concise, safe, and _____.

expressive

Kotlin is easy to learn if you already know _____.

Java

Kotlin is free and _____.

open-source

In Kotlin, the keyword used to define a function is _____.

fun

In Kotlin, the entry point of a program is the _____ function.

main()

In Kotlin, semicolons (;) are _____.

optional

The symbol for a single-line comment in Kotlin is _____.

//

The symbol for a multi-line comment in Kotlin is _____.

/* ... */

In Kotlin, the keyword for an immutable variable is _____.

val

In Kotlin, the keyword for a mutable variable is _____.

var

Kotlin supports _____.

type inference

The operator that allows null values in Kotlin is _____.

?

The keyword used for late initialization in Kotlin is _____.

lateinit

The expression used as a switch equivalent in Kotlin is _____.

when

The Kotlin loop that iterates from 1 to 5 is written as _____.

for (i in 1..5)

The Kotlin loop that executes while a condition is true is _____.

while