Lecture 10 quiz

1. Which of the following is a key advantage of Kernel-Level Threads (KLTs)?

• • No need for a mode switch when transferring control between threads

• • Application-level management of threads

• Kernel can schedule multiple threads from the same process on multiple processors

• Thread creation is done completely in the user space

1. What is a disadvantage of Kernel-Level Threads (KLTs)?

• Increased complexity in application-level thread management

• Inability to schedule multiple threads on multiple processors

• High overhead in thread creation

• Requires a mode switch to the kernel when transferring control between threads

What approach does Solaris use for managing threads?

• Kernel-Level Threads only

•  User-Level Threads only

• Combined approach of User-Level Threads and Kernel-Level Threads

•  Single-threaded processes

Which statement about Amdahl’s Law is true?

• It accurately predicts speed-up by considering thread management costs.

• It assumes all code is amenable to parallelization.

• It provides an idealized estimation of speed-up for concurrent execution.

• It suggests using more CPUs than the total lines of code.

1. In Windows, what is a thread pool used for?

• To manage multiple processes as a single unit

• To allow threads to exchange information through shared memory

• To execute asynchronous callbacks efficiently on behalf of an application

• To manually schedule threads within an application

What is a key characteristic of a thread in Windows?

• It is a unit of execution that is non-interruptible

• It operates independently of processes

• It executes sequentially and can be interrupted

• It executes sequentially and can be interrupted