Operating System Concepts Quiz

What is the primary focus of multithreading in modern applications?

• To reduce memory usage

• To simplify user interfaces

• To allow multiple tasks to run simultaneously

• To increase process creation time

Which of the following is a benefit of using threads?

• Limited resource sharing

• Higher overhead than context switching

• Increased process creation time

• Improved responsiveness

What does Amdahl's Law help to identify?

• The speedup of a process with more threads

• The efficiency of single-threaded applications

• The performance gains from adding cores

• The cost of thread management

Which threading model allows many user-level threads to be mapped to many kernel threads?

• Many-to-Many

• One-to-One

• Two-level

• Many-to-One

What is the main purpose of thread libraries?

• To limit the number of threads

• To manage user interfaces

• To increase process overhead

• To provide APIs for thread management

Which of the following is NOT a method of implicit threading?

• Thread Pools

• Fork-Join

• Grand Central Dispatch

• Manual Thread Creation

What is the primary difference between user threads and kernel threads?

• Kernel threads cannot be scheduled

• User threads are managed by user-level libraries

• Kernel threads are faster to create

• User threads are managed by the kernel

Which operating system uses the Pthreads library?

• Mac OS X

• All of the above

• Windows

• Linux

What is the main advantage of using thread pools?

• They require more thread management

• They allow for faster task servicing

• They limit the number of tasks

• They increase memory usage

What does the term 'fork-join' refer to in parallel programming?

• Creating a thread pool

• Joining threads into a single process

• Dividing tasks into multiple threads

• Creating a single thread