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What executes Android's Java code?
Dalvik/ART runtime.
How does Dalvik differ from a JVM?
Uses register-based bytecode.
What benefit does Zygote provide?
Fast app startup and shared memory.
What is Binder IPC?
Android's primary IPC system.
What model does Binder implement?
RPC-style message transactions.
What is an APK file?
Package containing app code, resources, and manifest.
What is the purpose of the app manifest?
Declares app identity, components, permissions.
What does the package manager do?
Indexes installed apps and their metadata.
What does the activity manager control?
App lifecycle and component execution.
What are the four app component types?
Activities, services, receivers, content providers.