Android 4

What are the worst case and best case time complexity of bubble sort consequently?

• O(n), O(n2)
• O(n2), O(n3)
• O(n), O(n3)
• None of the above

Each Android application runs in its own process and with its own instance of ART on devices running Android version 8.0 (API Level 26) or higher.

• True
• False

If you are developing more than one application that is signed with the same certificate, and you want these applications to share access to each other’s data and run in the same process, you need to give them the same ………………

• user ID (sharedUserId).
• user name and password.
• app description.
• Ad unit ID

Which of these are not one of the three main components of the APK?

• Dalvik Executable
• Resources
• Native Libraries
• Webkit

Broadcast receivers are Android's implementation of a system-wide publish/subscribe mechanism, or more precisely, what design pattern?

• Observer
• Façade
• Mediator
• Command

What are the same between Façade, Proxy and Adapter pattern?

• Structural group
• Play an intermediary role
• Convert Source code
• All of above

"Without violating encapsulation, capture and externalize an object’s internal state so that the object can be restored to this state later." Which design pattern is mentioned above?

• State
• Memento
• Prototype
• Composite

What is D stands for in SOLID principles?

• Dependency Invertion
• Database Inversion
• Dependency Invertion
• Database Inversion

Represent an operation to be performed on the elements of an object structure. Visitor lets you define a new operation without changing the classes of the elements on which it operates.

• Interpreter
• Visitor
• Iterator
• Composite

"What happens when you run the following code? int i = 0; while(true) { i++; Log.d(""Test"",""i = ""+i); }"

• A crash occurred
• An ANR occured
• Code runs normally
• A&B