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Multiprocessing in Operating Systems

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Questions and Answers

What is the main characteristic of symmetric multiprocessing (SMP)?

Allows many processes to run at once without performance deterioration
Master processor schedules and allocates work to slave processors
Each processor is assigned a specific task
Most modern operating systems support SMP (correct)

What distinguishes asymmetric multiprocessing from symmetric multiprocessing?

Relies on distributed systems architecture
Allows many processes to run at once without performance deterioration
Supports high reliability and resource sharing
Each processor is assigned a specific task; master processor schedules and allocates work to slave processors (correct)

What advantages are associated with distributed systems?

Master processor scheduling and allocating work to slave processors
Load sharing and resource sharing (correct)
Symmetric multiprocessing architecture
Reliability and communications

In clustered systems, what capability is provided?

Clustering allows two or more systems to share storage (A) Signup and view all the answers

What is the main advantage of symmetric multiprocessing (SMP)?

Increased throughput (A) Signup and view all the answers

In a symmetric multiprocessing (SMP) system, how do processors communicate?

Through a clock and shared memory (D) Signup and view all the answers

What type of systems benefit from symmetric multiprocessing (SMP)?

Multiprocessor systems with more than one CPU (B) Signup and view all the answers

What is a characteristic of symmetric multiprocessing (SMP) systems?

Each processor runs an identical copy of the operating system (C) Signup and view all the answers

What is the main program running at all times in an operating system?

Kernel (B) Signup and view all the answers

In a multiprogrammed batch system, how is the CPU allocated among several jobs?

By multiplexing among them (C) Signup and view all the answers

What is one of the OS features needed for multiprogramming in a batch system?

Allocation of devices (D) Signup and view all the answers

In a time-sharing system, where are the jobs kept when not allocated to the CPU?

On external storage (disk) (C) Signup and view all the answers