Ch 01: Introduction to Assembly Language

Foundational study of Intel x86 microprocessors, accumulator registers, base registers, count registers, data registers, flags register, and instruction execution cycles.

387 Questions387 MCQs0 Short Questions0 Long Questions

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CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Timed practice exam simulation for CS401 - Computer Architecture and Assembly Language Programming.

Showing 101 – 110 of 387 Questions

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Q101

❓ MCQ📘 CS401📑 Lec 1🏷️ FLAGS Register Classification: Status Flags vs Control FlagsEasy🔁⭐💡📄🎓VU🏛️VU

Which group of processor flags in the 8088 FLAGS register are classified as control/system flags rather than status flags used for mathematical arithmetic?

💻 assembly Snippet

cld
cli

A.Carry, Interrupt, and Trap flags
B.Direction, Interrupt, and Trap flags
C.Direction, Overflow, and Trap flags
D.Direction, Interrupt, and Sign flags

Q102

❓ MCQ📘 CS401📑 Lec 1🏷️ NASM Assembler Directives (EXTERN and GLOBAL)Easy🔁⭐💡📄🎓VU🏛️VU

In NASM assembly language, an imported symbol is declared using the __________ directive, while an exported symbol is declared using the __________ directive.

💻 assembly Snippet

extern printf
global _start

A.GLOBAL directive, EXTERN directive
B.EXTERN directive, GLOBAL directive
C.HOME directive, FOREIGN directive
D.FOREIGN directive, HOME directive

Q103

❓ MCQ📘 CS401📑 Lec 1🏷️ Data Allocation Directives (db, dw, dd)Easy🔁⭐💡📄🎓VU🏛️VU

Which pseudo-instruction directive is used in NASM assembly language to reserve or initialize an 8-bit byte in memory?

💻 assembly Snippet

val8: db 0x55
val16: dw 0x1234

A.db (Define Byte)
B.dw (Define Word)
C.dn (Define Nibble)
D.dd (Define Doubleword)

Q104

❓ MCQ📘 CS401📑 Lec 1🏷️ Assembly Language Classification and ArchitectureEasy🔁⭐💡📄🎓VU🏛️VU

How is Assembly Language classified in the hierarchy of computer programming languages?

A.Low-level programming language
B.High-level programming language
C.Machine code language
D.Not considered closer to the hardware

Q105

❓ MCQ📘 CS401📑 Lec 1🏷️ General Purpose Registers and CX Count RegisterEasy🔁⭐💡📄🎓VU🏛️VU

In 8088 assembly language architecture, what is the primary architectural role of the CX general-purpose register?

💻 assembly Snippet

mov cx, 10
loop_label:
    dec cx
    jnz loop_label

A.Count register
B.Data register
C.Index register
D.Base register

Q106

❓ MCQ📘 CS401📑 Lec 1🏷️ System Bus Architecture (Address, Data, and Control Buses)Easy🔁⭐💡📄🎓VU🏛️VU

What are the three fundamental buses used by the system architecture to connect the CPU, memory, and I/O subsystems?

A.Address bus, data bus, and control bus
B.Addressing bus, data bus, and data bus
C.Address bus, datamove bus, and data bus
D.Address bus, data bus, and signal bus

Q107

❓ MCQ📘 CS401📑 Lec 1🏷️ Unidirectional Address Bus MechanicsEasy🔁⭐💡📄🎓VU🏛️VU

Is the statement true or false: 'The address bus is unidirectional, and memory addresses always travel strictly from the processor to memory or I/O devices'?

A.TRUE
B.FALSE

Q108

❓ MCQ📘 CS401📑 Lec 1🏷️ Bidirectional Data Bus MechanicsEasy🔁⭐💡📄🎓VU🏛️VU

Why is the system data bus designed to be bidirectional in computer architecture?

A.To allow data to move in both directions: from processor to memory (write) and from memory to processor (read)
B.To allow data to move from processor to memory and memory to data bus
C.To allow data to move only from memory to processor
D.None of the given options

Q109

❓ MCQ📘 CS401📑 Lec 1🏷️ Bidirectional Data Bus MechanicsEasy🔁⭐💡📄🎓VU🏛️VU

Why is the system data bus designed to be bidirectional?

A.To allow data to travel both from the processor to memory (writes) and from memory to the processor (reads)
B.To allow memory addresses to travel in both directions
C.To carry control signals from peripheral devices back to CPU registers
D.To connect only to internal registers without accessing external RAM

Q110

❓ MCQ📘 CS401📑 Lec 1🏷️ Control Bus Architecture and DirectionalityEasy🔁⭐💡📄🎓VU🏛️VU

In system bus architecture, how is the Control Bus classified with respect to signal transmission direction?

A.It is not important
B.It is unidirectional
C.It is bidirectional
D.It is optional

Ch 01: Introduction to Assembly Language

CS401 - Computer Architecture and Assembly Language Programming Examination Practice

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CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Mid Term Examination

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