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Welcome to the 80286 80287 Microprocessor MCQs Page

Dive deep into the fascinating world of 80286 80287 Microprocessor with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 80286 80287 Microprocessor, a crucial aspect of Microprocessor. In this section, you will encounter a diverse range of MCQs that cover various aspects of 80286 80287 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 80286 80287 Microprocessor. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Microprocessor.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of 80286 80287 Microprocessor. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

80286 80287 Microprocessor MCQs | Page 9 of 19

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Q81.
The gate that uses word count field is

a.

trap gate

b.

task gate

c.

interrupt gate

d.

call gate

Discuss
Answer: (d).call gate
Q82.
The memory that maintains the most frequently required data for execution, in a high speed memory is called

a.

virtual memory

b.

physical memory

c.

cache memory

d.

ROM (read only memory)

Discuss
Answer: (c).cache memory
Q83.
The selector field consists of

a.

requested privilege level (RPL)

b.

table indicator

c.

index

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q84.
If table indicator, TI=0, then the descriptor table selected is

a.

local descriptor table

b.

global descriptor table

c.

local and global descriptor table

d.

none of the mentioned

Discuss
Answer: (b).global descriptor table
Q85.
The instruction that is executed at privilege level zero (0) is

a.

LDT

b.

LGDT and LLDT

c.

GDT

d.

None of the mentioned

Discuss
Answer: (b).LGDT and LLDT
Q86.
The instruction that loads a selector which refers to a local descriptor table, containing the base address and limit for LDT is

a.

LGT

b.

GDT

c.

LGDT

d.

LLDT

Discuss
Answer: (d).LLDT
Q87.
The descriptor that is used to store task gates, interrupt gates and trap gates is

a.

system descriptor table

b.

gate descriptor table

c.

interrupt descriptor table

d.

none of the mentioned

Discuss
Answer: (c).interrupt descriptor table
Q88.
The number of interrupt descriptors that the interrupt descriptor table (IDT) handles is

a.

16

b.

64

c.

128

d.

256

Discuss
Answer: (d).256
Q89.
The number of bytes required for an interrupt in an IDT is

a.

2

b.

4

c.

6

d.

8

Discuss
Answer: (c).6
Q90.
By using privilege mechanism the protection from unauthorized accesses is done to

a.

operating system

b.

interrupt handlers

c.

system software

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Page 9 of 19

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