Q121
Q121 A DMA transfer is not completing correctly. What could be the cause?
Incorrect DMA address
Faulty ALU
Incorrect instruction pointer
Faulty interrupt controller
Q122
Q122 A system crashes when using DMA for data transfer. What could be the issue?
Incorrect DMA channel
Memory corruption
Incorrect CPU clock speed
Improper DMA initialization
Q123
Q123 What is the primary difference between RISC and CISC architectures?
RISC uses fewer instructions and simpler operations, CISC uses more instructions and complex operations
RISC uses more complex instructions
CISC has lower clock speeds
RISC is more expensive than CISC
Q124
Q124 Why are RISC architectures often considered faster than CISC?
Fewer transistors
Fewer clock cycles per instruction
Larger instruction sets
Higher cost
Q125
Q125 How do CISC architectures typically handle complex instructions?
By using multiple instructions
By executing them in a single clock cycle
By using microcode
By skipping the complex instructions
Q126
Q126 In a RISC-based assembly language, how is data typically loaded from memory?
Using multiple clock cycles
Using a single LOAD instruction
Using a single complex instruction
Using a conditional branch
Q127
Q127 What does the instruction LDUR X0, [X1, #8] do in a RISC architecture?
Loads the address X1 into X0
Loads data from memory address (X1 + 8) into X0
Loads data from register X1 into X0
Stores data from X0 into memory
Q128
Q128 A RISC system is executing instructions slower than expected. What could be the issue?
Incorrect clock cycle
Incorrect pipeline
Data hazard
Memory overflow
Q129
Q129 A CISC processor is struggling to execute complex instructions efficiently. What could be the problem?
Incorrect microcode implementation
Faulty ALU
Power failure
Stack overflow
Q130
Q130 What is pipelining in the context of microprocessors?
Executing one instruction at a time
Overlapping multiple instructions during execution
Using multiple cores
Using cache memory
Q131
Q131 What is the primary advantage of out-of-order execution in microprocessors?
Reduces instruction size
Allows faster memory access
Improves instruction throughput
Simplifies control unit
Q132
Q132 What is speculative execution in modern microprocessors?
Executing instructions ahead of time based on prediction
Fetching instructions in parallel
Executing instructions twice
Clearing the instruction pipeline
Q133
Q133 In a superscalar architecture, how does the microprocessor execute multiple instructions simultaneously?
Using a single pipeline
Using multiple execution units
By waiting for one instruction to complete
By storing them in cache
Q134
Q134 How does the instruction PREFETCH [address] work in modern microprocessors?
Executes instructions from a different memory location
Prefetches data from memory into cache
Loads data from I/O device
Stops the instruction pipeline
Q135
Q135 A microprocessor with pipelining is executing some instructions out of order. What could be the reason?
Data hazard
Power failure
Memory corruption
Incorrect clock speed
Q136
Q136 A superscalar processor is not fully utilizing all execution units. What could be the cause?
Incorrect branching
Pipeline stall
Instruction dependency
Improper register allocation
Q137
Q137 Which of the following is a common application of microprocessors?
Power generation
Automobile control systems
Mechanical gears
Water distribution systems
Q138
Q138 How do microprocessors contribute to industrial automation?
By controlling I/O devices
By executing user applications
By managing real-time systems
By storing data
Q139
Q139 Which microprocessor feature is most crucial for medical device applications?
Low power consumption
High speed
Real-time processing
Parallel processing
Q140
Q140 In an assembly program for a temperature sensor, which instruction would be used to read the sensor’s data?
MOV
IN
ADD
PUSH
Q141
Q141 In a microprocessor-based traffic control system, which instruction would you use to change traffic signals?
MOV
OUT
PUSH
POP
Q142
Q142 A microprocessor-based home automation system is not responding to input from a sensor. What could be the issue?
Incorrect sensor
Faulty I/O port
Faulty ALU
Low battery
Q143
Q143 A microprocessor-based system in an industrial environment is malfunctioning under high temperatures. What could be the cause?
Incorrect instruction
Overheating
Faulty memory
Faulty address bus
Q144
Q144 In a case study of a microprocessor-based traffic control system, what is the primary role of the microprocessor?
Managing memory
Executing mathematical operations
Controlling signal timing
Processing sensor data
Q145
Q145 In a real-time microprocessor-based medical monitoring system, what is the most critical requirement?
High-speed processing
Real-time data processing
Low power consumption
Parallel processing
Q146
Q146 What is a key challenge in designing microprocessor-based embedded systems for automotive applications?
Managing large databases
Ensuring low power consumption
Handling real-time tasks reliably
Improving graphical processing
Q147
Q147 In an assembly program controlling an industrial robotic arm, which instruction is used to send movement commands?
IN
OUT
ADD
SUB
Q148
Q148 How would a microprocessor manage sensor data in a smart building automation system using assembly language?
By polling sensors using the IN instruction
By waiting for an interrupt
By using parallel processing
By monitoring memory
Q149
Q149 A microprocessor-based traffic light system is showing delays in changing signals. What could be the issue?
Incorrect clock speed
Faulty instruction
Faulty ALU
Incorrect sensor input
Q150
Q150 A medical monitoring system using a microprocessor crashes intermittently. What could be the potential issue?
Faulty memory
Incorrect program counter
Overheating
Incorrect data bus
