Real Time Operating system in Embedded System MCQ Quiz – Objective Question with Answer for Real Time Operating system in Embedded System

81. Which provides a 4 Gbyte virtual address space?

A. Windows 3.1
B. MS-DOS
C. pSOS+
D. Windows NT

Answer: D

The virtual address spacing in the Windows NT is somewhat different from the MS-DOS and the Windows 3.1. The Windows NT provides 4 Gbytes virtual address space for each process and that is linearly addressed using 32-bit address values.

 

82. Which applications can be used with the Windows NT?

A. WIN16
B. WIN32
C. WIN4
D. WIN24

Answer: B

The WIN32 is also known as 32-bit or even native. It is used for the Windows NT applications which use the same instruction set as that of the Windows NT and therefore do not need to emulate a different architecture.

 

83. Which of the following has the same instruction set as that of the Windows NT?

A. WIN32
B. WIN4
C. WIN24
D. WIN16

Answer: A

WIN32 is used for the Windows NT applications and is also known as even native which uses the same instruction set as that of the Windows NT and therefore does not need to emulate a different architecture.

 

84. Which can provide more memory than physical memory?

A. real memory
B. physical address
C. virtual memory
D. segmented address

Answer: C

The physical memory can provide more memory than the physical memory within the system. Such memories are divided into segments and pages.

 

85. Which of the following uses a swap file to provide the virtual memory?

A. Windows NT
B. kernel
C. memory
D. memory management unit

Answer: A

The Windows NT uses a swap file for providing a virtual memory environment. This file is dynamic and varies with the amount of memory that all the software including the device driver, operating systems, and so on.

 

86. What is the size of the swap file in Windows 3.1?

A. 25 Mbytes
B. 30 Mbytes
C. 50 Mbytes
D. 100 Mbytes

Answer: B

Windows 3.1 has a swap file of size 25 Mbytes.

 

87. What is the nature of the swap file in Windows NT?

A. static
B. dynamic
C. linear
D. non-linear

Answer: B

The swap file used in the Windows NT is dynamic and it varies with the amount of memory that all the software including the device driver, operating systems, and so on.

 

88. What limits the amount of virtual memory in Windows 3.1?

A. size of the swap file
B. nature of swap file
C. static file
D. dynamic file

Answer: A

The swap file of Windows 3.1 has a size of 25 Mbytes and thus limits the amount of virtual memory that it can support.

 

89. Which of the following control and supervises the memory requirements of an operating system?

A. processor
B. physical memory manager
C. virtual memory manager
D. ram

Answer: C

The virtual memory manager can control and supervises the memory requirements of the operating system.

 

90. What is the size of the linear address in the virtual memory manager?

A. 2 Gbytes
B. 12 Gbytes
C. 4 Gbytes
D. 16 Gbytes

Answer: C

The virtual memory manager can allocate a linear address space of size 4 Gbytes to each process which is unique and cannot be accessed by the other processes.

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