Palm Pre Application Development Test Answers
·
1. Which of the following is the
prefered data storage object to store upto 5 MB of data?
Answers:
• Cookie
• Depot
• HTML 5 database
object
2. What is the type of the year
attribute property for the DatePicker widget?
Answers:
• DatePicker
• String
• Boolean
• FilterField
3. Which of the following parameters
of the set method of the Alarms Service API is used to create a calendar based
alarm in GMT?
Answers:
• key
• at
• in
• wakeup
• params
4. Which of the following widgets is
not supported by the Mojo.Event.propertyChange event?
Answers:
•
Mojo.Widget.ListSelector
•
Mojo.Widget.PasswordField
•
Mojo.Widget.ProgressBar
•
Mojo.Widget.Slider
5. You are using the Mojo Messaging
Service. If three messages a, b, and c arrive one after another while the
device is offline, what will happen?
Answers:
• Only message a
will be delivered.
• Only message c
will be delivered.
• Messages a and
b will be delivered.
• Messages b and
c will be delivered.
• All the
messages will be delivered.
6. What will be returned if the
following code is called and is executed successfully?
this.controller.serviceRequest('palm://com.palm.calendar/crud',
{
method:
'listCalendars',
parameters: {
accountId: "idstring"
},
onSuccess:
function(),
onFailure:
function()
});
Answers:
• It will display
all types of available calendars like UTC or GMT.
• It will display
the functionality and all the parameters available for the Calendar API.
• It will display
the list of the calendar objects associated with the account.
• It will display
all the information about the associated account.
7. You want to create an Application
service for dialing a phone number. Which of the following will be used?
Answers:
•
this.controller.serviceRequest('palm://com.palm.applicationManager', {
method:'open', parameters: { target: "tel://4530498763"} });
•
this.controller.serviceRequest('palm://com.palm.applicationManager',{
method:'open', parameters: { target = "tel=//4530498763"} });
•
this.controller.serviceRequest('palm://com.palm.applicationManager',{
method:'open', parameters: { target: "tellno://4530498763"} });
•
this.controller.serviceRequest('palm://com.palm.applicationManager', {
method:'open', parameters: { target: "tellno=//4530498763"} });
8. You want to create a Palm
application using the Mojo SDK command-line development in /projects/Ticker
having the title Good Day. Which of the following will be used?
Answers:
• palm-generate
-p "title=Good Day" ~/projects/Ticker
• palm-generate
-t "title=Good Day" ~/projects/Ticker
• palm-generate
-l "title=Good Day" ~/projects/Ticker
• palm-generate
-f "title=Good Day" ~/projects/Ticker
9. Consider the following
Instantiation of the FilterField widget:
this.controller.setupWidget('filterField',
this.attributes = {
delay: 3000,
filterFieldHeight: 100
},
this.model = {
disabled: false
});
What will be the wait time between the
key strokes for a filter event?
Answers:
• 3000
milliseconds
• 3000 seconds
• 3 minutes
• 100 seconds
10. Which of the following is not a
property of the meta tag that is located within the head tag of HTML?
Answers:
• width
• maximum-scale
• minimum-scale
• height
• None of the
above
11. Which of the following scrolling
modes of the Scroller widget allows scrolling along the horizontal or vertical
axes, but not both at once?
Answers:
• free
• horizontal
• vertical
• dominant
• horizontal-snap
• vertical-snap
12. You want to create an animation
curve that is quick in the middle, and slow at both ends. Which of the
following methods will be used?
Answers:
•
Mojo.Animation.easeIn
•
Mojo.Animation.easeInOut
• Mojo.Animation.easeOut
•
Mojo.Animation.Generator
•
Mojo.Animation.Queue
13. What is the type of the replace
attribute in the class Mojo.Depot?
Answers:
• String
• Number
• Boolean
• Array
14. You want to play the audio or the
video medium. Which of the following services will be used?
Answers:
• Application
Services
• System Services
• Cloud Services
15. Consider the following method:
Mojo.Drag.setupDropContainer(element,
dropClient)
Which of the following dropClient
property methods will be called whenever the item is first dragged over this
container?
Answers:
•
dragLeave(element)
•
dragHover(element)
•
dragEnter(element)
•
dragDrop(element, newItem)
16. Which of the following Progress
Indicators will you use for audio/video applications when you know how long the
content is and want the user to know where they are in the playback process and
allow them to control it?
Answers:
• Progress Pill
• Progress Bar
• Progress Slider
• Inline Progress
Bar
17. What type of return value does the
function Mojo.Controller.AppController.getScreenOrientation() return?
Answers:
• 'up', 'down',
'left', or 'right'
• '1', '2', '3',
or '4'
• 'vertical', or
'horizontal'
• None of the
above
18. What is the type of the watchMouse
parameter for the Mojo.Controller.SceneController.setUserIdleTimeout(element,
func, delay, watchMouse, watchKeys) function?
Answers:
• string
• function
• boolean
• int
• object
19. Which endocing system is used for
the data that is returned by the Mojo.Model.encrypt(key, data) and
Mojo.Model.decrypt(key, data) methods?
Answers:
• base16
• base32
• base64
• All of the
above
20. Which of the following features
are missing in the Palm Host Tools Graphical launcher for windows?
Answers:
• Drag and drop
• Multiple pages
• Search
• Some
applications are not displayed.
21. Which of the following arguments
are required in the function Mojo.Controller.showAlertDialog?
Answers:
• onChoose
• title
• message
• preventCancel
• choices
22. What is the function of the View
menu widgets supported by the Mojo framework?
Answers:
• It is used to
set a menu at the bottom of the screen.
• It is a desktop
style menu that drops down from the top-left corner of the screen when the user
taps in that area.
• It applies to
the menus across the top of the screen and can be used as a display header or
action button.
• It can be used
in conjunction with the other menu types or be attached to any element in the
page.
23. Which of the following are the
required properties for the openDatabase() method in HTML 5 database?
Answers:
• name
• version
• displayName
• estimatedSize
24. Suppose you have an alphabetical
list of contacts ordered on the basis of the last name. You want to implement
the divider where each divider contains the first letter of the last names as
shown in the figure. Which API will you use to implement this?
Answers:
• Mojo.Widget.ListSelector
•
Mojo.Widget.FilterList
•
Mojo.Widget.List
•
Mojo.Widget.FilterField
25. What is the function of the
<canvas> tag ?
Answers:
• It is used to
draw graphs, make photo compositions or animations.
• It is used for
formatting output e.g. for using bold or italic text.
• It is used to
display table (2 * 2). It will work in a way similar to the <table> tag
in HTML.
• None of the
above
26. What will happen if the
deleteEndpoint method of the Mojo Messaging Service is being called and the device
is offline?
Answers:
• The attempt to
connect the device will continue until it is available again.
• It will return
connectionErr.
• The endpoint
will be deleted irrespective to the status of the device.
• None of the
above
27. Dashboard applications are
applications that provide services like the stock ticker, current weather etc.
To enable the users to perform which of the following functions must it have an
application icon and a UI manifestation?
Answers:
• To configure
the application, in order to determine what the application should display
• To be notified
when important information arrives or events occur
• To quit the
application
• All of the
above
28. Which API will you use to display
a Popup Menu widget?
Answers:
•
Mojo.Widget.ListSelector
•
Mojo.Menu.commandMenu
•
Mojo.Widget.List
• None of the
above
29. Is there a way to stop the
rendering of the page until all the callbacks have been completed for a Palm
based application lifecycle?
Answers:
• Yes
• No
30. Does Palm webOS support file
uploading?
Answers:
• No
• Yes
31. What will be the output of the
following command when you are using Debugger?
list - or l -
Answers:
• It will show
the first 10 lines of the code.
• It will show
the last 10 lines of the code.
• It will show
the next 10 lines of the code.
• It will show
the previous 10 lines of the code.
32. What are the dimensions of the
icon.png icon image which application displays in the Launcher?
Answers:
• 32 pixels by 32
pixels.
• 64 pixels by 64
pixels.
• 64 pixels by 56
pixels.
• 56 pixels by 64
pixels.
33. What will the following function
return if the key is the delete key?
Mojo.Char.isDeleteKey(key)
Answers:
• delete
• true
• false
• del
34. When the appropriate application
to handle the request is already known, which of the Application Methods is
used?
Answers:
• open
• launch
• Depends upon
the application
35. What does the maxValue attribute
property of the ProgressSlider widget signify?
Answers:
• Maximum slider
value returned at the leftmost position.
• Maximum slider
value returned at the rightmost position.
• Round the value
returned to the nearest integer
• It always
returns the value as 100.
• It always
returns the value as 0.
36. To customize the behavior of a
stage, scene or application, which of the following folders stores the
Javascript function files that use controllers provided by the SDK?
Answers:
• app
• assistants
• models
• views
• Any of the
above
37. What is the type of the allDay
event of the Calendar object?
Answers:
• integer
• string
• boolean
• object
38. What is problem with the following
declaration?
<div
x-mojo-element="Button" class="xyz"
name="xyz"></div>
Answers:
• The value of
the x-mojo-element property is in the title case.
• The name of the
class and the name of the button can not be the same.
• The syntax is
incorrect.
• The id property
is missing in the declaration.
• There is no
problem with the code.
39. What will be returned if the
Mojo.Controller.StageController.activeScene() function is called and no scene
is active?
Answers:
• It will return
the first scene of the stage.
• It will return
the last scene of the stage.
• It will return
undefined.
• It will throw
an error and halt the application.
40. What will be the output of the
following function?
Mojo.Log.info("I have", 5,
"books.");
Answers:
• I have books 5.
• I have 5 books.
• I have5books.
• I have books.
41. Which of the following are not
Palm webOs Events?
Answers:
•
Mojo.Event.commandEnable
•
Mojo.Event.command
• Mojo.Event.back
•
Mojo.Event.commandDisable
42. What is the default value of the
lookahead attribute property of the List widget?
Answers:
• 10
• 15
• 20
• 25
• None of the
above
43. What is the keyboard shortcut to
perform swipe back in Palm Emulator?
Answers:
• ESC
• Home
• End
• None of the
above
44. What is the type of the accuracy
parameter of the getCurrentPosition method of the Location Service API?
Answers:
• string
• integer
• boolean
• object
45. What will happen if the Contacts
API PhoneNumber property is set as follows:
{
"value":4534974378,
""label":1
}
Answers:
• The phone
number 4534974378 and the label home are saved.
• The phone
number 4534974378 and the label work are saved.
• The phone
number 4534974378 and the label mobile are saved.
• The phone
number 4534974378 and the label main are saved.
• It will throw
an error.
46. What will happen when the Camera
Service API capture method is called once and then canceled?
Answers:
• The application
will throw an error.
• The control
will be returned to the original application.
• The application
will crash.
• There will be
no change in the application's status.
47. What will the following code do
while using the palm-launch tool on the emulator or device?
palm-launch -f com.example.app
Answers:
• It will close
the application.
• It will close
and relaunch the application.
• It will run the
application with the Inspector.
• It will specify
the devices.
48. State whether true or false:
If the Mojo.View.visible(element)
method is set for an element, its ancestor will be visible along with the
element.
Answers:
• True
• False
49. What is the default value of the
modelProperty attribute property of the Drawer widget?
Answers:
• open
• closed
• none
• true
• false
50. What is the type of the choices
attribute of the ListSelector widget?
Answers:
• DatePicker
• String
• Boolean
• Array
51. What will the following code
display?
this.controller.serviceRequest('palm://com.palm.accounts/crud',
{
method: 'listAccounts',
parameters:
{},
onSuccess:
function(),
onFailure:
function()
});
Answers:
• It will create
a new account attached to this application.
• It will
retrieve all the details of the specified account.
• It will show
all accounts created by a particular appid.
• It will throw
an error due to invalid syntax.
52. What will be the output of the
following code?
Mojo.assert(books > 5,
"expected books to be greater than 5, but it was 3", {count: 3,
amount: books})
Answers:
• It will write
an error to the log.
• It will throw
an exception.
• It will write
an error to the log and also throw an exception.
• It will run
successfully.
53. Mojo.Animation.animateClip
(element, side, animationType, details) is used to animate the clip style
property of DOM elements. How many sides may be animated at a time?
Answers:
• 1
• 2
• 3
• 4
54. What will the get() method of the
Mojo.Model.Cookie class return if no cookie exists?
Answers:
• It will throw
an exception.
• It will write
error to the log.
• It will return
undefined.
• It will return
zero value.
55. What will happen if the following
code is executed?
this.controller.serviceRequest("palm://com.palm.applicationManager",
{
method: "open",
parameters: {
id:
'com.palm.app.browser',
params: {
target: "<command>://<url>"
}
}
});
Answers:
• It will open
the given url in a separate card.
• It will open in
a scene within your application.
• It will throw
an error due to invalid syntax.
• It will open
http urls in a scene within your application and https urls in a separate card.
56. What will the following code do?
this.controller.serviceRequest('palm://com.palm.applicationManager',
{
method: 'open',
parameters: {
id: 'com.palm.app.maps',
params: {
location: {lat: 37.759568992305134, lng: -122.39842414855957},
query: "Pepsi",
}
}
});
Answers:
• It will return
locations related to Pepsi in a particular location as specified.
• It will return
locations related to Pepsi in an area other than that specified in the location
parameter.
• It will return
none because the parameters are not in the proper format.
• It will throw
an error.
57. State whether true or false:
Adding new contact information to a
new or an existing contact can be done using the open method of the Contacts
Service API.
Answers:
• True
• False
58. What is the maximum period of
setting Monotonic alarm?
Answers:
• 12 hours
• 24 hours
• 1 month
• There is no
limit.
