Computer Organization Questions and Answers – Intel IA-32 Pentium Architecture-1

This set of Computer Organization and Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Intel IA-32 Pentium Architecture-1”.

1. The address space of the IA-32 is __________
a) 2¹⁶
b) 2³²
c) 2⁶⁴
d) 2⁸
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2. The addressing method used in IA-32 is ____________
a) Little Endian
b) Big Endian
c) X-Little Endian
d) Both Little and Big Endian
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3. The floating point numbers are stored in general purpose register in IA-32.
a) True
b) False
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4. The Floating point registers of IA-32 can operate on operands up to ___________
a) 128 bit
b) 256 bit
c) 80 bit
d) 64 bit
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5. The size of the floating registers can be extended upto _________
a) 128 bit
b) 256 bit
c) 80 bit
d) 64 bit
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6. The IA-32 architecture associates different parts of memory called __________ with different usages.
a) Frames
b) Pages
c) Tables
d) Segments
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7. The PC is incorporated with the help of general purpose registers.
a) True
b) False
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8. IOPL stands for ________
a) Input/Output Privilege level
b) Input Output Process Link
c) Internal Output Process Link
d) Internal Offset Privilege Level
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9. In IA-32 architecture along with the general flags, the other conditional flags provided are ___________
a) IOPL
b) IF
c) TF
d) All of the mentioned
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10. The register used to serve as PC is called as ___________
a) Indirection register
b) Instruction pointer
c) R-32
d) None of the mentioned
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11. The IA-32 processor can switch between 16 bit operation and 32 bit operation with the help of instruction prefix bit.
a) True
b) False
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12. The Bit extension of the register is denoted with the help of __________ symbol.
a) $
b) `
c) E
d) ~
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13. The instruction, ADD R1, R2, R3 is decoded as ___________
a) R1<-[R1]+[R2]+[R3]
b) R3<-[R1]+[R2]
c) R3<-[R1]+[R2]+[R3]
d) R1<-[R2]+[R3]
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14. The instruction JG loop does ______
a) jumps to the memory location loop if the result of the most recent arithmetic op is even
b) jumps to the memory location loop if the result of the most recent arithmetic op is greater than 0
c) jumps to the memory location loop if the test condition is satisfied with the value of loop
d) none of the mentioned
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15. The LEA mnemonic is used to __________
a) Load the effective address of an instruction
b) Load the values of operands onto an accumulator
c) Declare the values as global constants
d) Store the outcome of the operation at a memory location
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Sanfoundry Global Education & Learning Series – Computer Organization and Architecture.