Associate Android Developer 시험 - Google실제시험문제와 답 - 107문항

Question No : 1

Run your test in one of the following ways (select possible): (Choose three.)

A.To run a single test, open the Project window, and then right-click a test and click Run.
B.To test all methods in a class, right-click a class or method in the test file and click Run.
C.To run all tests in a directory, right-click on the directory and select Run tests.
D.To run all tests in Project, open the Project window, and then right-click a test and click Run.

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Question No : 2

With our Context we can get SharedPreferences with a method, named: getSharedPreferences (String name, int mode).
What value can we transfer in a “mode”parameter?

A.MODE_PRIVATE or MODE_PUBLIC
B.combination of MODE_WORLD_READABLE and MODE_WORLD_WRITEABLE
C.Value is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE,
D.MODE_WORLD_WRITEABLE, and MODE_MULTI_PROCESS

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Question No : 3

What is illustrated in the picture?

A.Logcat window with filter settings
B.Debugging native code using LLDB
C.The Variables and Watches panes in the Debugger window
D.The Breakpoints window lists all the current breakpoints and includes behavior settings for each
E.Adding a watchpoint to a variable in memory

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Question No : 4

If you want the Database Inspector to automatically update the data it presents as you interact with your running app, check the Live updates checkbox at the top of the inspector window. While live updates are enabled, what happens with the table in the inspector window?

A.It is still editable. You can modify data in a table by double-clicking a cell, typing a new value, and pressing Enter.
B.It becomes read-only and you cannot modify its values.
C.It becomes read-only, but you cannot see its updated values before updating the data by clicking the Refresh table button at the top of the inspector window.

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Question No : 5

For example, we have a file in our raw folder app/src/main/res/raw/sample_teas.json.
To get an InputStream for reading it, from out Context context, we can do this:

A.val input = context!!.openRawResource(
B.raw.sample_teas)
C.val input = context!!.getRawResource(
D.raw.sample_teas)
E.val input = context!!.resources.openRawResource(
F.raw.sample_teas)

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Question No : 6

In a class extended PreferenceFragmentCompat.
What method is used to inflate the given XML resource and add the preference hierarchy to the current preference hierarchy?

A.findPreference
B.getPreferenceManager
C.addPreferencesFromResource
D.setPreferenceScreen

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Question No : 7

The easiest way of adding menu items (to specify the options menu for an activity) is inflating an XML file into the Menu via MenuInflater. With menu_main.xml we can do it in this way:

A.override fun onCreateOptionsMenu(menu: Menu): Boolean { menuInflater.inflate(
B.menu.menu_main, menu) return true }
C.override fun onOptionsItemSelected(item: MenuItem): Boolean { menuInflater.inflate(
D.menu.menu_main, menu) return super.onOptionsItemSelected(item) }
E.override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(
F.menu.menu_main) }

정답:
Explanation:
Reference: https://developer.android.com/guide/topics/ui/accessibility/custom-views

Question No : 8

Each time your test invokes onView(), Espresso waits to perform the corresponding UI action or assertion until the following synchronization conditions are met: (Choose three.)

A.The message queue is empty.
B.The message queue is not empty.
C.There are some instances of AsyncTask currently executing a task.
D.There are no instances of AsyncTask currently executing a task.
E.Some developer-defined idling resources are not idle.
F.All developer-defined idling res

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Question No : 9

SharedPreferences.Editor is an interface used for modifying values in a SharedPreferences object.
To mark in the editor that a preference value should be removed, which will be done in the actual preferences once commit() or apply() is called, what method in SharedPreferences.Editor should we use?

A.delete(String key)
B.clear()
C.remove(String key)
D.removeAll()

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Explanation:
clear() method marks in the editor to remove ALL values from the preferences. Once commit is called, the only remaining preferences will be any that you have defined in this editor.
And no delete and removeAll method exists in SharedPreferences.Editor

Question No : 10

What is a correct part of an Implicit Intent for sharing data implementation?

A.val sendIntent = Intent(this, UploadService::class.java).apply { putExtra(Intent.EXTRA_TEXT, textMessage) ...
B.val sendIntent = Intent().apply { type = Intent.ACTION_SEND; ...
C.val sendIntent = Intent(this, UploadService::class.java).apply { data = Uri.parse(fileUrl) ...
D.val sendIntent = Intent().apply { action = Intent.ACTION_SEN
E...

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Explanation:
Create the text message with a string val sendIntent = Intent().apply { action = Intent.ACTION_SEND putExtra(Intent.EXTRA_TEXT, textMessage) type = "text/plain" }
Reference: https://developer.android.com/guide/components/fundamentals

Question No : 11

Android Tests. You can use the childSelector() method to nest multiple UiSelector instances. For example, the following code example shows how your test might specify a search to find the first ListView in the currently displayed UI, then search within that ListView to find a UI element with the text property Apps.
What is the correct sample?

A.val appItem: UiObject = device.findObject( UiSelector().className(ListView.class) .instance(1) .childSelector( UiSelector().text("Apps") ) )
B.val appItem: UiObject = device.findObject( UiSelector().className("android.widget.ListView") .instance(0) .childSelector( UiSelector().text("Apps") ) )
C.val appItem: UiObject = device.findObject( UiSelector().className("android.widget.ListView") .instance( UiSelector().text("Apps") ) )

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Question No : 12

For example, we have a BufferedReader reader, associated with the json file through
InputStreamReader.
To get a file data we can do this:

A.var line: String? try { while (reader.readLine().also { line = it } != null) { builder.append(line) } val json = JSONObject(builder.toString()) return json } catch (exception: IOException) { exception.printStackTrace() } catch (exception: JSONException) { exception.printStackTrace() }
B.var line: JSONObject ? try { while (reader.readJSONObject ().also { line = it } != null) { builder.append(line) } val json = JSONObject(builder.toString()) return json } catch (exception: IOException) { exception.printStackTrace() } catch (exception: JSONException) { exception.printStackTrace() }
C.var line: String? try { while (reader.readLine().also { line = it } != null) { builder.append(line) } val json = JSONObject(builder.toString()) return json } catch (exception: RuntimeException) { exception.printStackTrace() } catch (exception: ArrayIndexOutOfBoundsException) { exception.printStackTrace() }

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Question No : 13

When your code execution reaches the breakpoint, Android Studio pauses execution of your app. You can then use the tools in the Debugger tab to identify the state of the app.

With Step Out you can

A.examine the object tree for a variable; expand it in the Variables view. If the Variables view is not visible
B.evaluate an expression at the current execution point
C.advance to the next line in the code (without entering a method)
D.advance to the first line inside a method call
E.advance to the next line outside the current method
F.continue running the app normally

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Question No : 14

To run a debuggable build variant you must use a build variant that includes

A.minifyEnabled false in the build configuration
B.debuggable true or debuggable false in the build configuration
C.debuggable true in the build configuration

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Question No : 15

Filter logcat messages. If in the filter menu, a filter option “Edit Filter Configuration”? means:

A.Display the messages produced by the app code only (the default). Logcat filters the log messages using the PID of the active app.
B.Apply no filters. Logcat displays all log messages from the device, regardless of which process you selected.
C.Create or modify a custom filter. For example, you could create a filter to view log messages from two apps at the same time.

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Google Associate Android Developer 시험