Thread pools limit the number of threads that exist at any one point, hence ____________

• A. Not letting the system resources like cpu time and memory exhaust
• B. Helping a limited number of processes at a time
• C. Not serving all requests and ignoring many
• D. None of the mentioned

The number of the threads in the pool can be decided on factors such as ____________

• A. Number of cpus in the system
• B. Amount of physical memory
• C. Expected number of concurrent client requests
• D. All of the mentioned

The model in which one kernel thread is mapped to many user-level threads is called ___________

• A. Many to one model
• B. One to many model
• C. Many to many model
• D. One to one model

The model in which one user-level thread is mapped to many kernel level threads is called ___________

• A. Many to one model
• B. One to many model
• C. Many to many model
• D. One to one model

In the Many to One model, if a thread makes a blocking system call ___________

• A. The entire process will be blocked
• B. A part of the process will stay blocked, with the rest running
• C. The entire process will run
• D. None of the mentioned

In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because of ___________

• A. Only one thread can access the kernel at a time
• B. Many user threads have access to just one kernel thread
• C. There is only one kernel thread
• D. None of the mentioned

The One to One model allows ___________

• A. Increased concurrency
• B. Decreased concurrency
• C. Increased or decreased concurrency
• D. Concurrency equivalent to other models

In the One to One model when a thread makes a blocking system call ___________

• A. Other threads are strictly prohibited from running
• B. Other threads are allowed to run
• C. Other threads only from other processes are allowed to run
• D. None of the mentioned

Which of the following is the drawback of the One to One Model?

• A. Increased concurrency provided by this model
• B. Decreased concurrency provided by this model
• C. Creating so many threads at once can crash the system
• D. Creating a user thread requires creating the corresponding kernel thread

When is the Many to One model at an advantage?

• A. When the program does not need multithreading
• B. When the program has to be multi-threaded
• C. When there is a single processor
• D. None of the mentioned