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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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Check out the MCQs below to embark on an enriching journey through 80386 and 80486 Microprocessor. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Microprocessor.

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80386 and 80486 Microprocessor MCQs | Page 7 of 13

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Q61.
To form a physical memory address, appropriate segment register contents are
Discuss
Answer: (d).all of the mentioned
Discuss
Answer: (c).either overlapped or non-overlapped
Q63.
The operation that can be performed on segments in 80386 real mode is
Discuss
Answer: (d).all of the mentioned
Q64.
The selectors contain the segment’s
Discuss
Answer: (d).all of the mentioned
Discuss
Answer: (a).effective address + segment base address
Q66.
If the paging unit is enabled, then it converts a linear address into
Discuss
Answer: (b).physical address
Q67.
If the paging unit is disabled, then the linear address is used as
Discuss
Answer: (b).physical address
Q68.
The paging unit is enabled only in
Discuss
Answer: (c).protected mode
Q69.
For a single task in protected mode, the 80386 can address the virtual memory of
Discuss
Answer: (d).64 TB
Q70.
The bit that indicates whether the segment has been accessed by the CPU or not is
Discuss
Answer: (b).attribute bit

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