Buses (Data, Address, Control) MCQs

Which bus is responsible for transferring data between components of a computer system?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What is the primary function of the address bus?
A) To transfer data between components
B) To carry addresses of data locations
C) To control the timing of data transfers
D) To provide power to components
Answer: B

Which bus line is used to signal which memory location or I/O device is being accessed?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: B

Which bus carries signals that manage and synchronize the operations of the CPU and other components?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: C

What type of bus is used to transmit data to and from memory and peripherals?
A) Address Bus
B) Data Bus
C) Control Bus
D) System Bus
Answer: B

Which bus is used to specify the address of the memory location or I/O device that the CPU wants to communicate with?
A) Control Bus
B) Address Bus
C) Data Bus
D) Power Bus
Answer: B

What does the control bus manage during data transfer operations?
A) Addresses of memory locations
B) Timing and control signals
C) Data transfer between components
D) Power supply to components
Answer: B

Which bus type is bi-directional, allowing data to be read from or written to a memory location?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What does the address bus determine during a read operation?
A) The data to be written
B) The address of the data to be read
C) The control signals for data transfer
D) The power requirements
Answer: B

Which bus is crucial for the CPU to manage and coordinate its operations with other components?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: C

Which bus component carries the actual data being transferred?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What does the control bus include for managing memory read and write operations?
A) Address lines
B) Data lines
C) Read/Write signals
D) Power lines
Answer: C

Which bus is typically wide enough to carry multiple bits of data simultaneously?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

In a computer system, what does the control bus signal?
A) The power level of the system
B) The address of data
C) Read and write operations, interrupts, and clock signals
D) The data being transferred
Answer: C

What determines the maximum amount of memory a system can address?
A) Data Bus width
B) Address Bus width
C) Control Bus speed
D) Power supply
Answer: B

What does the data bus width impact in a computer system?
A) The number of memory addresses
B) The speed of the control signals
C) The amount of data that can be transferred simultaneously
D) The power consumption
Answer: C

Which bus connects the CPU to RAM, ROM, and I/O ports for data exchange?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

During a memory write operation, which bus carries the data to be written?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

Which bus is responsible for carrying control signals to manage the timing of data transfers?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What does the width of the address bus determine?
A) The data transfer rate
B) The addressable memory space
C) The control signals
D) The data bus speed
Answer: B

Which bus allows the CPU to send addresses to memory and I/O devices?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: A

Which bus component is critical for coordinating communication between the CPU and peripherals?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

In a computer system, which bus would be affected by an increase in the system’s memory capacity?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: B

What is the role of the data bus during a read operation?
A) To specify the address of data
B) To provide the data being read
C) To control the timing of the operation
D) To supply power to the components
Answer: B

Which bus transmits signals to indicate whether the CPU should read from or write to a memory location?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What does the width of the data bus affect?
A) The address space
B) The number of control signals
C) The amount of data that can be transferred at once
D) The power consumption
Answer: C

Which bus is used to transfer the address of a memory location or I/O device to the CPU?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: A

Which component of the control bus indicates the status of the data bus?
A) Address Lines
B) Data Lines
C) Status Signals
D) Power Lines
Answer: C

What does an increase in the width of the data bus result in?
A) Increased power consumption
B) More addresses
C) Faster data transfer rates
D) Larger addressable memory space
Answer: C

Which bus component is essential for the synchronization of data transfer operations?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What role does the address bus play in the memory addressing process?
A) It carries the data to be written
B) It specifies the memory location to access
C) It manages control signals
D) It provides power to the memory
Answer: B

Which bus provides the connection between the CPU and the external memory?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What is the purpose of the control signals sent over the control bus?
A) To transfer data between the CPU and memory
B) To specify memory addresses
C) To manage and coordinate data transfers
D) To provide power to the CPU
Answer: C

Which bus is crucial for determining which memory or I/O device is being accessed?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: B

In a multiprocessor system, which bus is used to manage the interaction between processors?
A) Data Bus
B) Address Bus
C) Control Bus
D) System Bus
Answer: C

Which bus carries data between the CPU and RAM during a read or write operation?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What does the width of the address bus determine in a computer system?
A) The speed of data transfer
B) The number of memory addresses available
C) The type of control signals
D) The amount of power consumed
Answer: B

Which bus is used to control the flow of data between the CPU, memory, and peripherals?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: C

What is the main purpose of the address bus in a computer system?
A) To transfer data
B) To provide control signals
C) To specify memory or I/O device locations
D) To manage power supply
Answer: C

Which bus type connects all major components of a computer system for communication?
A) Address Bus
B) Data Bus
C) Control Bus
D) System Bus
Answer: D

Which bus is responsible for carrying address signals from the CPU to memory or I/O devices?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: B

What does an increase in the address bus width allow a computer system to do?
A) Increase the data transfer rate
B) Address a larger memory space
C) Manage more control signals
D) Reduce power consumption
Answer: B

Which bus is used to carry control signals such as read, write, and interrupt requests?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

Which bus provides the ability to send data between the CPU and peripheral devices?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

Which bus type is used for the communication of status and control information between components?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What impact does the width of the data bus have on a computer system’s performance?
A) It affects the number of addresses available
B) It influences the amount of data transferred per operation
C) It determines the power supply requirements
D) It controls the timing of data transfers
Answer: B

Which bus type carries the address of the memory location to be accessed?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: A

Which bus component is critical for coordinating data transfer operations between the CPU and memory?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

Which bus is responsible for carrying data between the CPU and I/O devices during input/output operations?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What is the primary function of the control bus in data transfer operations?
A) To specify the address of data
B) To carry the actual data
C) To provide control signals for read/write operations
D) To supply power to the components
Answer: C

Which bus determines the memory locations that the CPU is accessing?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: A

What does the width of the data bus affect in terms of data transfer?
A) The address space
B) The number of control signals
C) The volume of data transferred per clock cycle
D) The power consumption
Answer: C

Which bus is crucial for managing the synchronization of different computer components?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What role does the address bus play in accessing memory?
A) It manages data transfers
B) It provides power to memory
C) It specifies the location of data in memory
D) It controls timing signals
Answer: C

Which bus is used to transfer control signals from the CPU to other system components?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What impact does an increase in the address bus width have on a computer system’s memory capabilities?
A) It increases the speed of data transfer
B) It allows for a larger addressable memory space
C) It reduces the number of control signals
D) It affects the data bus width
Answer: B

Which bus is used to indicate the type of operation (read/write) to be performed?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

Which bus provides the ability to manage multiple data transfer operations simultaneously?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What does the control bus include for managing the flow of data between components?
A) Address lines
B) Data lines
C) Control signals such as read/write and interrupt signals
D) Power lines
Answer: C

Which bus is responsible for specifying the addresses of data locations?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: A

What is the primary purpose of the data bus in a computer system?
A) To specify addresses
B) To manage control signals
C) To transfer data between components
D) To supply power
Answer: C

Which bus type is crucial for transferring instructions and data between the CPU and memory?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

Which bus handles the transmission of control signals to coordinate various operations?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

What is the main role of the address bus in a system with multiple memory modules?
A) To control data transfer rates
B) To select the specific memory module and address
C) To manage power supply
D) To synchronize data transfers
Answer: B

Which bus component is essential for the efficient functioning of a computer system’s I/O operations?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

Which bus is involved in indicating which memory location is to be accessed or written to?
A) Data Bus
B) Address Bus
C) Control Bus
D) Power Bus
Answer: B

Which bus allows for simultaneous read and write operations by managing data flow between the CPU and memory?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: B

What is the role of the control bus in relation to the data bus?
A) To carry addresses
B) To provide power
C) To manage data transfer operations
D) To specify memory locations
Answer: C

Which bus is used to handle the signaling of status information, such as whether a device is ready for data transfer?
A) Address Bus
B) Data Bus
C) Control Bus
D) Power Bus
Answer: C

Buses (Data, Address, Control) MCQs
By: Prof. Dr. Fazal Rehman Shamil | Last updated: September 20, 2024

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