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Welcome to the 80386 and 80486 Microprocessor MCQs Page

Dive deep into the fascinating world of 80386 and 80486 Microprocessor with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 80386 and 80486 Microprocessor, a crucial aspect of Microprocessor. In this section, you will encounter a diverse range of MCQs that cover various aspects of 80386 and 80486 Microprocessor, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Microprocessor.

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80386 and 80486 Microprocessor MCQs | Page 9 of 13

Q81.
The size of the pages in the paging scheme is
Discuss
Answer: (b).fixed
Q82.
To convert linear addresses into physical addresses, the mechanism that the paging unit uses is
Discuss
Answer: (d).two level table mechanism
Q83.
The control register that stores the 32-bit linear address, at which the previous page fault is detected is
Discuss
Answer: (c).CR2
Q84.
Which of the following is not a component of paging unit?
Discuss
Answer: (b).page descriptor base register
Q85.
The control register that is used as page directory physical base address register is
Discuss
Answer: (d).CR3
Q86.
The bits of CR3, that are always zero are
Discuss
Answer: (d).lower 12 bits
Q87.
Each directory entry in page directory is maximum of
Discuss
Answer: (b).4 bytes
Q88.
The size of each page table is of
Discuss
Answer: (c).4 Kbytes
Q89.
The dirty bit(D) is set, before which operation is carried out
Discuss
Answer: (a).write
Q90.
The bit that is undefined for page directory entries is
Discuss
Answer: (c).D-bit

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