Deck 2: Android Application Development

Question 1

What does the .apk extension stand for?

A)application package
B)application program kit
C)android proprietary kit
D)android package

Answer 1

application package

Question 2

When you distribute your application commercially,you'll want to sign it with your own key.

Answer 2

True

Question 3

How does Google check for malicious software in the Android Market?

A)every new app is scanned by a virus scanner
B)users report malicious software to google
C)google employees verify each new app
D)a seperate company monitors the android market for google

Answer 3

users report malicious software to google

Question 4

Which of these are not one of the three main components of the APK?

A)dalvik executable
B)resources
C)native libraries
D)webkit

Question 5

What is the name of the program that converts Java byte code into Dalvik byte code?

A)android interpretive compiler (aic)
B)dalvik converter
C)dex compiler
D)mobile interpretive compiler (mic)

Question 6

What was the main reason for replacing the Java VM with the Dalvik VM when the project began?

A)there was not enough memory capability
B)java virtual machine was not free
C)java vm was too complicated to configure
D)java vm ran too slow

Question 7

Android Applications must be signed.

A)after they are installed
B)before they are installed
C)never
D)within two weeks of installation

Question 8

Which of the following are not a component of an APK file?

A)resources
B)all of these are components of the apk
C)native libraries
D)dalvik executable

Question 9

The AWT and Swing libraries have been removed from the Android library set.

Question 10

The R.java file is where you edit the resources for your project.

Question 11

What is contained within the manifest xml file?

A)the permissions the app requires
B)the list of strings used in the app
C)the source code
D)all other choices

Question 12

What is contained within the Layout xml file?

A)orientations and layouts that specify what the display looks like.
B)the permissions required by the app.
C)the strings used in the app.
D)the code which is compiled to run the app.

Question 13

The emulated device for android.

A)runs the same code base as the actual device, all the way down to the machine layer.
B)is more of a simulator, and acts as a virtual machine for the android device.
C)runs the same code base as the actual device, however at a higher level.
D)an imaginary machine built on the hopes and dreams of baby elephants.

Question 14

Your Java source code is what is directly run on the Android device.

Question 15

The Emulator is identical to running a real phone EXCEPT when emulating/simulating what?

A)telephony
B)applications
C)sensors
D)the emulator can emulate/simulate all aspects of a smart phone.

Question 16

How is a simulator different from an emulator?

A)emulators are only used to play old snes games, simulators are used for software development
B)the emulator is shipped with the android sdk and third party simulators are not
C)the emulator can virtualize sensors and other hardware features, while the simulator cannot
D)the emulator imitates the machine executing the binary code, rather than simulating the behavior of the code at a higher level.

Question 17

The R file is a(an) generated file

A)automatically
B)manually
C)emulated
D)none of the above

Question 18

An activity can be thought of as corresponding to what?

A)a java project
B)a java class
C)a method call
D)an object field

Question 19

To create an emulator, you need an AVD. What does it stand for?

A)android virtual display
B)android virtual device
C)active virtual device
D)application virtual display

Question 20

The Android SDK ships with an emulator.

Question 21

The ___________ file specifies the layout of your screen.

A)layout file
B)manifest file
C)strings xml
D)r file

Question 22

The manifest explains what the application consists of and glues everything together.

Question 23

The Android Software Development Kit (SDK) is all you need to develop applications for Android.

Question 24

What is the driving force behind an Android application and that ultimately gets converted into a Dalvik executable?

A)java source code.
B)r-file.
C)the emulator.
D)the sdk

Question 25

While developing Android applications, developers can test their apps on…

A)emulator included in android sdk
B)physical android phone
C)third-party emulators (youwave, etc.)
D)all three options will work.