[FAST TRACK] Android quiz 09 10.06

How many Observers can be notified by Subject?

• Only 1
• 255
• Depends on memory
• Unlimited

Which of these keywords are used to implement synchronization?

• synchronize
• syn
• synch
• synchronized

What happens when you use the API 15 features but set compileSdkVersion to 14?

• Get error when run application
• Get error when compilation
• All of above
• No errors

What are false when comparing Prototype and Object Pool? (multiple choices)

• Both of them can reuse exist object.
• Prototype permits modify object without altering the original but Object Pool does not.
• They allows to create unlimited objects.
• Object is always available to access.

Which of the following diagram is time oriented?

• Collaboration
• Sequence
• Activity
• None of the mentioned

Quick sort uses

• Exchanging
• Partitioning
• Selection
• Merging

Which of the following is NOT a state in the lifecycle of a service?

• Starting
• Running
• Destroyed
• Paused

Which design pattern will be helpful to add new functionality to an existing object?

• Decorator
• Prototype
• Template
• Flyweight

Identify which of the following modeling element is not associated with Use case Diagrams

• Actor
• Include relationship
• Extend relationship
• Aggregate relationship

In Android application, each new activity created must be defined in

• res/layout
• res/values
• Build.gralde
• AndroidManifest.xml