ASSOCIATE-ANDROID-DEVELOPER Online Practice Questions and Answers

DRAG DROP

With recommended app architecture. Fill the following diagram, which shows how all the modules usually should interact with one another after designing the app (drag modules to correct places).

Select and Place:

DRAG DROP

Under the hood WorkManager uses an underlying job dispatching service based on the following criteria. You need to move services to the correct places.

Select and Place:

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 Evaluate Expression

you can

A. examine the object tree for a variable; expand it in the Variables view

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

The Log class allows you to create log messages that appear in logcat. Generally, you could use the following log methods: (Choose five.)

A. Log.e(String, String) (error)

B. Log.a(String, String) (all outputs)

C. Log.w(String, String) (warning)

D. Log.i(String, String) (information)

E. Log.q(String, String) (questions)

F. Log.d(String, String) (debug)

G. Log.v(String, String) (verbose)

A class that you create for managing multiple data sources. In addition to a Room database, this class could manage remote data sources such as a web server. It is about:

A. Activity/Fragment

B. ViewModel

C. Repository

D. Room database

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

A. InputStream input = context.getResources().openRawResource (R.raw.sample_teas);

B. InputStream input = context.getAssets().open("sample_teas.json");

C. InputStream input = context.getResources().getAssets().open ("sample_teas.json");

Choose the most correct statement.

A. Android is a closed source, Linux-based software stack created for a wide array of devices and form factors.

B. Android is a closed source, Windows-based software stack created for a wide array of devices and form factors.

C. Android is an open source, Linux-based software stack created for a wide array of devices and form factors.

D. Android is an open source software stack created for a highly limited array of devices and form factors.

If content in a PagedList updates, the PagedListAdapter object receives:

A. only one item from PagedList that contains the updated information.

B. one or more items from PagedList that contains the updated information.

C. a completely new PagedList that contains the updated information.

We have a custom view that extends android.widget.ProgressBar. Our progress bar is not touchable, focusable, etc.: it just shows progress. Style for our custom progress bar extends "Widget.AppCompat.ProgressBar.Horizontal". An item, named "progressDrawable", in our style, is a xml file . What we usually can see as a main single element in this xml file:

A. A State List ( element )

B. A Layer List ( element) with items android:id="@+id/progress" and android:id="@+id/ background" inside it.

C. An element with android:id="@+id/progress" identifier

RecyclerView is a subclass of ViewGroup and is a more resource-efficient way to display scrollable lists. Instead of creating a View for each item that may or may not be visible on the screen, RecyclerView:

A. creates a single list item and reuses it for visible content.

B. creates an unlimited number of list items and never reuses them

C. creates a limited number of list items and reuses them for visible content.

D. creates a single list item and never reuses it