Os2
Operating Systems Mastery Quiz
Test your knowledge on operating systems with our comprehensive quiz! Dive into topics covering files, directories, synchronization mechanisms, iOS architecture, and much more.
Whether you're a student preparing for exams or a professional brushing up on your skills, this quiz is designed to challenge and engage you.
- 45 thought-provoking questions
- Multiple-choice format for easy answering
- Score your knowledge instantly
Which file contains user information?
Directory Files
Ordinary Files
Device Files
All the above
Adds information to an existing file
Create
Append
Write
Read
Directory Structure...
Keep track of files
Normally have directories of folders
Has a Singel Level Directory Structure
All the above
Hierarchical Directory
Singel Level
Two Level
Tree Level
B & C
This layer translates logical block address to physical block address
Logical System Layer
File Organization Module Layer
) Basic File System Layer
Application Program Layer
The file is a collection of unrelated information
True
False
File operation create is to create a file in the file
True
False
Directory File contains user information
True
False
) FIFO-FILES provide temporary buffer for two or more process to communicate
True
False
) Device driver translats file level command and the output is Hardware instruction
True
False
- who is responsible for making sure that the critical section have only one process is modifying the share data.
Spinlock
Semaphore
Mutex
- it is allows a thread to acquire it to simply wait in loop until it's available.
Spinlock
Semaphore
Mutex
- it's basically a technique used to mange concurrent processes by using integer value that is used to control the access on multiple processes.
Spinlock
Semaphore
Mutex
- the entry of other processes in the shared data after the execution of one process in handled by:
Entry section
Remainder section
Exit section
The remaining part of the code which is not categorized is contained in:
Entry section
Remainder section
Exit section
Android OS provides synchronization mechanisms to ensure that multiple processes can access shared resources without interference
True
False
- in binary semaphore will have value 1 or 0, but if we used counting semaphore it can't have different values
True
False
- A spinlock is a low-level synchronization mechanism
True
False
Synchronization mechanisms can help to reduce the amount of memory and CPU resources
True
False
Spinlock are valid for one or several process
True
False
What is the role of process scheduling in iOS
To make sure that each process gets a fair share of the system's resources
To ensure that only high priority processes get CPU time.
To optimize the use of the system's resources to ensure that the system runs smoothly and efficiently
Which scheduling algorithm assigns an equal amount of CPU time to each process, regardless of its priority level?
Proportional Share Scheduling algorithm
Fair Share Scheduling algorithm
Both algorithms assign an equal amount of CPU time to each process.
What is the range of priority levels assigned to each process in iOS?
. 0 to 31
1 to 10
. 0 to 100
1 to 100
What is the priority inheritance mechanism used for in iOS?
To ensure that lower priority processes get more CPU time
To resolve the priority inversion problem
To give more CPU time to processes running in the background.
What is the main benefit of using the Proportional Share Scheduling algorithm in iOS?
Ensuring that each process gets a fair share of the system's resources
Giving an equal amount of CPU time to each process.
Optimizing the use of the system's resources to ensure that the system runs smoothly and efficiently.
Which component of the iOS architecture is responsible for managing push notifications and background tasks?
Core Location
Background Fetch
Notification Center
) Remote Notifications
- What is the role of the Core Motion layer in iOS architecture?
Handling touch events and user input
Managing device orientation and motion data
Providing APIs for audio and video playback
Supporting network communication and data transfer
Which layer of the iOS architecture is responsible for handling user authentication and access control?
Security
Core Data
Core Location
Core Audio
What is the purpose of the Grand Central Dispatch (GCD) layer in iOS architecture?
Managing power and performance of the system
Compiling high-level code into low-level machine code
Handling network communication and data transfer
Managing concurrency and parallelism in app development
Which layer of the iOS architecture provides support for location-based services and maps?
Core Location
Media
Core Data
Core Graphics
The UIkit layer is responsible for handling low-level system functions in iOS architecture.
True
False
- The Security layer in iOS architecture provides encryption and secure communication protocols
True
False
The Core Networking layer in iOS architecture provides APIs for handling network communication and data transfer
True
False
The Core Audio layer in iOS architecture provides support for audio and video playback.
True
False
- The Metal layer in iOS architecture provides a high-level graphics API for advanced graphics rendering and computing tasks.
True
False
Doze is a power-saving feature in Android that is designed to conserve battery life when the device is in use
True
False
Doze is works by reducing the device's background activity, limiting network access, and reducing CPU usage
True
False
In doze maintenance window is where all that background activity gets coalesce - this is where all these restrictions are lifted for a brief period of time for applications.
True
False
In App standby , the app's state is saved to the device's memory
True
False
Battery optimization refers to the techniques and mechanisms employed by mobile OS to reduce the power consumption of the device and extend its battery life
True
False
The Android Doze helps schedule background tasks that are executed in your application
True
False
The Android JobScheduler API helps schedule …………………… that are executed in your application.
) foreground task
Background tasks
None of the above
Reducing the background activity for an app when the user is not actively engaged or is not actively using the device is something that only ……………………. That only can do.
Mobile system
Mobile user
Application developers
The …………………. Is designed to optimize power consumption and network usage by allowing multiple jobs to be executed together
JobScheduler API
Battery Historian
App standby
App standby: In Android, app standby works by putting ……………….... Into a standby state
Unused apps
Foreground activity
Used apps
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