1) Which control register in x86 family is reserved for future use and generally not adopted for current implementation?
a. CR0
b. CR1
c. CR2
d. CR4
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Answer
Explanation
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ANSWER: CR1
Explanation:
No explanation is available for this question!
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2) In Intel x86 architecture, which general purpose register is used for repeated string instructions as well as shift, rotate and loop instructions?
a. EAX (Accumulator)
b. ECX (Counter)
c. EDX (Data register)
d. EBP (Data Pointer)
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Answer
Explanation
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ANSWER: ECX (Counter)
Explanation:
No explanation is available for this question!
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3) Which function/s is/are provided by Integrated Memory Management Unit in 80386 architecture?
a. Optional on-chip paging
b. 4 levels of protection
c. Virtual Memory Support
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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4) In Pentium processor, which write buffer is used by the pipeline ALUs in order to write the result to the memory?
a. External Snoop Write Buffer
b. Internal Snoop Write Buffer
c. Line Replacement Write Buffer
d. Write-back Buffer
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Answer
Explanation
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ANSWER: Write-back Buffer
Explanation:
No explanation is available for this question!
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5) In x86 architecture, which type of gate acts as an intermediary between code segments at different privilege levels (PLs)?
a. Call gates
b. Task gates
c. Interrupt gates
d. Trap gates
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Answer
Explanation
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ANSWER: Call gates
Explanation:
No explanation is available for this question!
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6) For addressing in real mode, which segment plays a significant role in the storage of destination operands during the string operation?
a. Code Segment
b. Data Segment
c. Stack Segment
d. Extra Segment
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Answer
Explanation
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ANSWER: Extra Segment
Explanation:
No explanation is available for this question!
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7) In the test registers, what do/does the linear address bit hold/s with respect to TLB (Translation Look-aside Buffers)?
a. Physical address
b. Selection between write and lookup of TLB
c. Tag field
d. All of the above
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Answer
Explanation
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ANSWER: Tag field
Explanation:
No explanation is available for this question!
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8) Which kind of low-order 16 bits control register is also regarded as 'Machine Status Word' (MSW) in order to make it compatible with i286?
a. CR0
b. CR1
c. CR2
d. CR3
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Answer
Explanation
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ANSWER: CR0
Explanation:
No explanation is available for this question!
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9) Which status flag in x86 family is used to enable or disable the interrupt especially when the Pentium processor operates in the virtual mode?
a. ID
b. VIP
c. VIF
d. AC
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Answer
Explanation
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ANSWER: VIF
Explanation:
No explanation is available for this question!
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10) Which unit in 80386 DX architecture plays a crucial role in the conversion of linear address to physical address?
a. Execution
b. Protection
c. Segmentation
d. Paging
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Answer
Explanation
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ANSWER: Paging
Explanation:
No explanation is available for this question!
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