Question 1

Classes ________ (i.e., wrap) attributes and methods into objects—an object’s attributes and methods are intimately related.

Accepted Answer

A)   encumber.
B)   enclose.
C)   encapsulate.
D)   envelop. C

Question 2

Which of the following is a key technlogy for implementing Android apps?

Accepted Answer

A)   Android Studio IDE (Integrated Development Environment) ,
B)   Java
C)   Android SDK (Software Development Kit) 
D)   All of the above. D

Question 3

Android uses a collection of ________, which are named groups of related, predefined classes. Some of these are Android specific, some are Java specific and some are Google specific. They allow you to conveniently access Android OS features and incorporate them into your apps.

Accepted Answer

A)   modules.
B)   packages.
C)   containers.
D)   None of the above. B

Question 4

________ are software components stored on one computer that can be accessed by an app (or other software component) on another computer over the Internet.

Accepted Answer

A)   GUIs
B)   Web services.
C)   Classes.
D)   None of the above.

Question 5

Which of the following statements is false?

Accepted Answer

A)   The Android emulator is particularly useful if you do not have access to Android devices for testing.
B)   Although you can simulate orientation changes (to portrait or landscape mode) , simulating particular accelerometer readings (the accelerometer allows the device to respond to up/down, left/right and forward/backward acceleration)  requires features that are not built into the emulator.
C)   The Android emulator enables you to simulate the full range of Android gestures.
D)   You should certainly test your apps on a variety of Android devices before uploading them to Google Play.

Question 6

In addition to directly programming portions of your apps, you'll also use the Android Studio IDE to conveniently ________ predefined objects such as buttons and textboxes into place on your screen, and label and resize them.

Accepted Answer

A)   drag and drop
B)   point and click
C)   copy and paste
D)   None of the above.

Question 7

Which of the following was a new Android 3.0 developer feature:

Accepted Answer

A)   fragments, which describe portions of an app’s user interface and can be combined into one screen or used across multiple screens.
B)   a persistent Action Bar at the top of the screen providing users with options for interacting with apps.
C)   ability to use multicore processor architectures for enhanced performance
D)   All of the above.

Question 8

Which of the following is a set of APIs for incorporating Google functionality into your apps?

Accepted Answer

A)   Google Android Services
B)   Google App Services
C)   Google Play Services.
D)   None of the above.

Question 9

To simulate a long press gesture on the Android emulator:

Accepted Answer

A)   double click the mouse.
B)   click and hold the mouse.
C)   click the mouse once.
D)   click, hold and drag the mouse.

Question 10

To create the best solutions, you should follow a detailed analysis process for determining your project's ________ (i.e., defining what the system is supposed to do) and developing a design that satisfies them (i.e., deciding how the system should do it).

Accepted Answer

A)   prerequisites.
B)   preconditions.
C)   options.
D)   requirements.

Question 11

What key Android Ice Cream Sandwich developer feature is described by the following? "Using the camera, compatible devices can determine the positioning of the user's eyes, nose and mouth. The camera also can track the user's eye movement, allowing you to create apps that change perspective, based on where the user is looking."

Accepted Answer

A)   Social API.
B)   Virtual camera operator.
C)   Accessibility API.
D)   Face detection.

Question 12

Which gesture is used to flip item-by-item through a series, such as photos?

Accepted Answer

A)   drag.
B)   long press.
C)   pinch zoom.
D)   swipe.

Question 13

A class's attributes are specified by the class's ________.

Accepted Answer

A)   instance methods.
B)   instance variables.
C)   packages.
D)   None of the above.

Question 14

One benefit of developing Android apps is the openness of the platform. The operating system is ________ and free. This allows you to view Android's source code and see how its features are implemented.

Accepted Answer

A)   proprietary
B)   closed source
C)   open source
D)   None of the above.

Question 15

The ________ , included in the Android SDK, allows you to run Android apps in a simulated environment within Windows, Mac OS X or Linux, without us-ing an actual Android device.

Accepted Answer

A)   Android simulator.
B)   Android emulator.
C)   Android device.
D)   None of the above.

Question 16

Which Android Marshmallow feature is described by: "Tap and hold the home button while inside any app and Google Now inspects what's on the screen and presents relevant information in the form of cards. For example, in a text message discussing a movie, a card containing information about that movie is displayed.

Accepted Answer

A)   Now on Tap.
B)   Tap for Card.
C)   Tap on Screen.
D)   None of the above.

Question 17

At the time Android How to Program, 3/e was written, there were over 1.6 million apps in Google Play, and the number is growing quickly.

Accepted Answer

A)   160 thousand.
B)   1.6 million.
C)   16 million.
D)   160 million.

Question 18

With web services, you can create ________, which enable you to rapidly develop apps by quickly combining complementary web services, often from different organizations and possibly other forms of information feeds.

Accepted Answer

A)   smashups
B)   match ups.
C)   mashups.
D)   None of the above.

Question 19

In 2007, the ________ was formed to develop, maintain and evolve Android, driving innovation in mobile technology and improving the user experience while reducing costs.

Accepted Answer

A)   Open Handset Alliance.
B)   Open Phone Alliance.
C)   Open Software Foundation.
D)   Open Software Alliance.

Question 20

Unlike Apple’s ________ iOS, which is available only on Apple devices, An-droid is available on devices from dozens of original equipment manufacturers (OEMs) and through numerous telecommunications carriers worldwide.

Accepted Answer

A)   open source
B)   proprietary
C)   universal access
D)   None of the above.

Exam 1: Introduction to Android