Which Android component is responsible for managing the user interface and interactions? MCQ with Answer and Explanation

Question
Which Android component is responsible for managing the user interface and interactions?
A. Service
B. Activity
C. Content Provider
D. Broadcast Receiver
Answer: Option B
Solution (By JKSSB Mock Tests)
Activities represent screens with UI; they handle user interactions and lifecycle events.
This question belongs to: Computer Operating Systems
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Question #1
What is the purpose of the Android 'DevicePolicyManager'?
A. To enforce device security policies (like password, encryption) for enterprise
B. To manage app policies
C. To control device settings
D. To wipe device data
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Correct Answer: Option A

Explanation:
DevicePolicyManager is used for enterprise management to set policies such as password requirements, lock screen, and data wipe.
This question belongs to: Computer Operating Systems
Question #2
Which Windows tool displays comprehensive diagnostic indicators detailing live CPU, memory, disk, and network parameters broken down by individual process IDs?
A. System Restore Console
B. Registry Base Applet
C. Device Manager Panel
D. Resource Monitor
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Correct Answer: Option D

Explanation:
Resource Monitor expands on basic Task Manager metrics, providing fine-grained real-time tracking of handle bounds, disk channel usage, and network sockets.
This question belongs to: Computer Operating Systems
Question #3
Which component of Windows stores configuration settings for hardware, software, and users?
A. Group Policy
B. Event Viewer
C. System Configuration
D. Registry
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Correct Answer: Option D

Explanation:
The Windows Registry is a hierarchical database that stores configuration settings for the OS, applications, and hardware.
This question belongs to: Computer Operating Systems
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