← CS401 - Computer Architecture and Assembly Language Programming OverviewChapter 8

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Showing 111 – 120 of 307 Questions
Page 12 of 31
Q111
❓ MCQ📘 CS401📑 Lec 8🏷️ Processor Faults vs Traps and Divide Error ExceptionHard🔁⭐💡📄🎓VU🏛️VU
Which type of processor interrupt exception automatically saves the address of the faulting instruction on the stack so execution returns to the same instruction rather than the next instruction?
  1. A.Divide overflow interrupt (Divide Error)
  2. B.Debug interrupt
  3. C.Arithmetic overflow interrupt
  4. D.Change of sign interrupt
Q112
❓ MCQ📘 CS401📑 Lec 8🏷️ Hardware Interrupt Assignment for System Timer (IRQ 0)Easy🔁⭐💡📄🎓VU🏛️VU
Which hardware Interrupt Request (IRQ) line is driven directly by the Programmable Interval Timer (PIT) device?
  1. A.IRQ 0
  2. B.IRQ 1
  3. C.IRQ 2
  4. D.IRQ 3
Q113
❓ MCQ📘 CS401📑 Lec 8🏷️ Hardware Interrupt Assignment for Serial Ports (IRQ 3)Easy🔁⭐💡📄🎓VU🏛️VU
Which hardware Interrupt Request (IRQ) line is connected to serial communications port COM 2?
  1. A.IRQ 0
  2. B.IRQ 1
  3. C.IRQ 2
  4. D.IRQ 3
Q114
❓ MCQ📘 CS401📑 Lec 8🏷️ Port Input/Output Instructions (IN / OUT)Easy🔁⭐💡📄🎓VU🏛️VU
Which register(s) serve as the source data register for the OUT instruction in x86 port I/O operations?
💻 assembly Snippet
out 0x20, al
out dx, ax
  1. A.AL or AX
  2. B.BL or BX
  3. C.CL or CX
  4. D.DL or DX
Q115
❓ MCQ📘 CS401📑 Lec 8🏷️ 8259 PIC End of Interrupt (EOI) CommandMedium🔁⭐💡📄🎓VU🏛️VU
Who or what sends the End of Interrupt (EOI) signal to the Programmable Interrupt Controller (PIC) upon completing interrupt processing?
💻 assembly Snippet
mov al, 0x20
out 0x20, al
  1. A.Interrupt Service Routine (Handler)
  2. B.Processor Hardware
  3. C.IRQ Line
  4. D.Programmable Interrupt Controller (PIC)
Q116
❓ MCQ📘 CS401📑 Lec 8🏷️ 8259 PIC Interrupt Mask Register (IMR) PortsMedium🔁⭐💡📄🎓VU🏛️VU
In the 8259 Programmable Interrupt Controller (PIC), which I/O port address is used by the Interrupt Mask Register (IMR) to selectively enable or disable IRQ lines?
💻 assembly Snippet
in al, 0x21
or al, 0x02
out 0x21, al
  1. A.Port 19h
  2. B.Port 20h
  3. C.Port 21h
  4. D.Port 22h
Q117
❓ MCQ📘 CS401📑 Lec 8🏷️ DOS File System Abstraction vs BIOS Raw Disk AccessEasy🔁⭐💡📄🎓VU🏛️VU
Which software component provides a higher-level logical view of storage media by organizing raw disk sectors into files and directories?
  1. A.BIOS
  2. B.DOS
  3. C.Both BIOS and DOS
  4. D.None of the above
Q118
❓ MCQ📘 CS401📑 Lec 8🏷️ 8259 PIC Architecture and IRQ LinesMedium🔁⭐💡📄🎓VU🏛️VU
How are the primary Interrupt Request (IRQ) lines configured on the 8259 Programmable Interrupt Controller (PIC)?
  1. A.Eight hardware input interrupt signals
  2. B.One hardware output interrupt signal
  3. C.One hardware input interrupt signal
  4. D.Eight hardware output interrupt signals
Q119
❓ MCQ📘 CS401📑 Lec 8🏷️ Hardware Interrupt Assignment for Keyboard (IRQ 1)Easy🔁⭐💡📄🎓VU🏛️VU
Which hardware Interrupt Request (IRQ) line is assigned to the system keyboard in IBM PC architecture?
  1. A.IRQ 0
  2. B.IRQ 1
  3. C.IRQ 2
  4. D.IRQ 3
Q120
❓ MCQ📘 CS401📑 Lec 8🏷️ Hardware Interrupt Assignment for Serial Ports (IRQ 4)Easy🔁⭐💡📄🎓VU🏛️VU
Which hardware Interrupt Request (IRQ) line is assigned to serial communications port COM 1?
  1. A.IRQ 4
  2. B.IRQ 5
  3. C.IRQ 6
  4. D.IRQ 7

📖 Related CS401 - Computer Architecture and Assembly Language Programming Curriculum Units

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View All CS401 - Computer Architecture and Assembly Language Programming Chapters →
Ch 01: Introduction to Assembly Language387 QsCh 02: 16-Bit Segmented Memory Model & Addressing Modes395 QsCh 03: Branching, Loops and Program Flow261 QsCh 04: Bit Manipulation and Shifts198 QsCh 05: Subroutines and Stack Architecture222 QsCh 06: Parameter Passing and Stack Frames216 Qs