Regarding OS structure, which of the following statements is false? We refer the

Question

Regarding OS structure, which of the following statements is false?

We refer the MS-DOS’s structure as a simple one.

Unix has a kernel that provides functionalities for file system, CPU scheduling, memory management, and other operating-system functions. This kernel also contains some of the system software such as a C compiler.

In a Layered approach, functions can only call, per our book, functions of layers below the current layer.

In Mach, an example of microkernel structure, user models must use message passing to communicate.

Explanation / Answer

1.MS-DOS Operating system did not have well-defined structures and there was no There was no CPU Execution Mode and may occur to cause errors in applications so it is generally said that MS-DOS’s structure as a simple one.

2.This statement is True and the unix kernel contains some of the system software such as a C compiler.

3.The statement may False because Layered approach is to break the OS into a number of smaller layers and each of which rests on the layer below it and depend on the services provided by the next lower layer. This allows each layer to be debugged independently, with the assumption that all lower layers and they already debegged and trusted to deliver but the actual problem is for deciding the order in which to place the layers as as no layer can call upon the services of any higher layer hence we have a chicken-and-egg situation problem may arise.

4.The statement represents True because the MACH is the best example of Microkernal structure and user models may or may not use for message passing for communication.

This Answer is Posted according to my research on the OS structure thank you.

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