McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Information Technology SY (BSc IT) , Bachelor of Science in Information Technology (BSc IT) .
| 51. |
What file is responsible for glueing everthing together , explaining what the applicatin consists of, what its main building blocks are, ext…? |
| A. | layout file |
| B. | strings xml |
| C. | r file |
| D. | manifest file |
| Answer» D. manifest file | |
| 52. |
The XML file that contains all the text that your application uses. |
| A. | stack.xml |
| B. | text.xml |
| C. | strings.xml |
| D. | string.java |
| Answer» C. strings.xml | |
| 53. |
Which of the following is the most “resource hungry” part of dealing with Activities on Android |
| A. | closing an app |
| B. | suspending an app |
| C. | opening a new app |
| D. | restoring the most recent app |
| Answer» C. opening a new app | |
| 54. |
What runs in the background and doesn’t have any UI components? |
| A. | intents |
| B. | content providers |
| C. | services |
| D. | applications |
| Answer» C. services | |
| 55. |
What is an Activity? |
| A. | a single screen the user sees on the device at one time |
| B. | a message sent among the major building blocks |
| C. | a component that runs in the background without any interface. |
| D. | context referring to the application environment. |
| Answer» A. a single screen the user sees on the device at one time | |
| 56. |
When an activity doesn’t exist in memory it is in. |
| A. | starting state |
| B. | running state |
| C. | loading state |
| D. | inexistent state. |
| Answer» A. starting state | |
| 57. |
Which of the following is NOT a state in the lifecycle of a service? |
| A. | starting |
| B. | running |
| C. | destroyed |
| D. | paused |
| Answer» D. paused | |
| 58. |
There is no guarantee that an activity will be stopped prior to being destroyed. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 59. |
Intents |
| A. | are messages that are sent among major building blocks |
| B. | trigger activities to being, services to start or stop, or broadcast |
| C. | are asynchronous |
| D. | all of these |
| Answer» D. all of these | |
| 60. |
In an explicit intent, the sender specifies the type of receiver. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 61. |
an implicit intent is the sender specifies the type of receiver? |
| A. | true |
| B. | false |
| Answer» A. true | |
| 62. |
When the activity is not in focus, but still visible on the screen it is in? |
| A. | running state |
| B. | paused state |
| C. | stopped state |
| D. | destroyed state |
| Answer» B. paused state | |
| 63. |
An activity in a stopped state is doing nothing. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 64. |
Application contexts are independent of the activity life cycle. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 65. |
Services have any user interface components |
| A. | true |
| B. | false |
| Answer» B. false | |
| 66. |
Broadcast receivers are Android’s implementation of a system-wide publish/subscribe mechanism, or more precisely, what design pattern? |
| A. | observer |
| B. | facade |
| C. | mediator |
| D. | command |
| Answer» A. observer | |
| 67. |
There can be only one running activity at a given time. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 68. |
YAMBA stands for Yet Another Mobile Banking App. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 69. |
Lists and adapters are more organizational aids than user interface elements in Android. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 70. |
What built-in database is Android shipped with? |
| A. | sqlite |
| B. | apache |
| C. | mysql |
| D. | oracle |
| Answer» A. sqlite | |
| 71. |
Creating a UI (User Interface) in Android requires careful use of… |
| A. | java and sql |
| B. | xml and java |
| C. | xml and c++ |
| D. | dreamweaver |
| Answer» B. xml and java | |
| 72. |
A good example app should demonstrate most of the aspects of the application framework that are unique to Android. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 73. |
What will services be used for in the Yamba project? |
| A. | recompile the source code |
| B. | it will update tweets periodically in the background |
| C. | the services will pause the app |
| D. | configures the user interface |
| Answer» B. it will update tweets periodically in the background | |
| 74. |
Which answer is not part of the design philosophy talked about in chapter five? |
| A. | always whole and complete |
| B. | small increments |
| C. | lagre increments |
| D. | refactoring code |
| Answer» C. lagre increments | |
| 75. |
App Widgets are can be place on the home screen by the user to check for updates are available? |
| A. | true |
| B. | false |
| Answer» A. true | |
| 76. |
The android OS comes with many useful system services, which include processes you can easily ask for things such as your.. |
| A. | all of these and more. |
| B. | location |
| C. | sensor readings |
| D. | wifi? hot spots |
| Answer» A. all of these and more. | |
| 77. |
What does the Gargenta mean in his Design Philosophy when he says that the project will, “Always be whole and complete”? |
| A. | he means that when we finish the entire project we will have a working application, even though there will be points along the way when we will stop and the application will not run. |
| B. | he means that the program must always be able to compile. |
| C. | he means that we will work on the program by adding self contained chunks to it so that at every stopping point the application runs as though it were a whole and complete application. each additional chunk simply adds a new functionality to the application. |
| D. | none of the above |
| Answer» C. he means that we will work on the program by adding self contained chunks to it so that at every stopping point the application runs as though it were a whole and complete application. each additional chunk simply adds a new functionality to the application. | |
| 78. |
An Android application is a loose collection of content providers, activities, broadcast receivers, and services. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 79. |
Which of the following is NOT an activity we will be creating for the YAMBA project? |
| A. | preferences activity |
| B. | update activity |
| C. | timeline activity |
| D. | status activity |
| Answer» B. update activity | |
| 80. |
The timeline receiver will receive messages from the Android system. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 81. |
Status data will be exposed to the rest of the Android system via: |
| A. | intents |
| B. | a content provider |
| C. | network receivers |
| D. | altering permissions |
| Answer» B. a content provider | |
| 82. |
If the UI begins to behave sluggishly or crash while making network calls, this is likely due to… |
| A. | network latency |
| B. | hardware malfunctions |
| C. | virus on the server |
| D. | activity manager contains too much. |
| Answer» A. network latency | |
| 83. |
How does Gargenta approach the problem of the app acting sluggishly due to network latency? |
| A. | starting over |
| B. | switching api levels |
| C. | refactoring code |
| D. | multithreading |
| Answer» D. multithreading | |
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