qs
Computer System Architecture Questions Answers
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1. Which among following can be considered as most advanced ROM ?
- DRAM
- EEPROM
- RAM
- PROM
Answer And Explanation
Answer: Option B
Explanation:
EEPROM means Electrically Erasable Programmable Read-Only Memory.
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2. One byte equals to how many bits ?
- 4 bits
- 8 bits
- 12 bits
- 16 bits
Answer And Explanation
Answer: Option B
Explanation:
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3. Which among following is Volatile ?
- ROM
- EPROM
- DROM
- RAM
Answer And Explanation
Answer: Option D
Explanation:
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4. Where the result of an arithmetic and logical operation are stored ?
- In Accumulator
- In Cache Memory
- In ROM
- In Instruction Registry
Answer And Explanation
Answer: Option A
Explanation:
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5. Why we need to have secondary storage ?
- Store large volume of data that exceed the capacity of main memory
- Perform arithmatic and logical operations
- To give power to the system too
- To help processor in processing
Answer And Explanation
Answer: Option A
Explanation:
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6. Which determines the address of I/O interface ?
- Register select
- Chip select
- Both of above
- None of above
Answer And Explanation
Answer: Option C
Explanation:
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7. An exception condition in a computer system caused by an event external to the CPU is known as ?
- Halt
- Process
- Interrupt
- None of above
Answer And Explanation
Answer: Option C
Explanation:
In my own experience I found very few questions with answer "None of above", if you do not know the answer then its always better to guess among other (If there is no negative marking) ;)
Computer System Architecture Questions Answers
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8. Whenever CPU detects an interrupt, what it do with current state ?
- Save it
- Discard it
- Depends system to system
- First finish it
Answer And Explanation
Answer: Option A
Explanation:
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9. I/O processor has direct access to ?
- Main Memory
- Secondary Memory
- Flash Memory
- ROM
Answer And Explanation
Answer: Option A
Explanation:
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10. The address mapping is done, when the program is initially loaded is called ?
- Relocation
- Dynamic relocation
- Static relocation
- Executable relocation
Answer And Explanation
Answer: Option C
Explanation:
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11. The unit which decodes and translates each instruction and generates the necessary enable signals for ALU and other units is called
- ALU
- Control Unit
- CPU
- Logical Unit
Answer And Explanation
Answer: Option B
Explanation:
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12. A microprogram is sequencer perform the operation ?
- Read
- Write
- Read and Write
- Read and Execute
Answer And Explanation
Answer: Option D
Explanation:
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13. Which among following is an important data transfer technique ?
- CAD
- CAM
- DMA
- MMA
Answer And Explanation
Answer: Option C
Explanation:
DMA is Direct Memory Access.
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14. RISC stands for ?
- Risk Instruction Source Computer
- Reduced Instruction Set Computer
- Risk Instruction Set Computer
- Risk Instruction Set Computing
Answer And Explanation
Answer: Option B
Explanation:
Computer System Architecture Questions Answers
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15. The performance of the cache memory is measured in terms of ?
- Hit Ratio
- Chat Ratio
- Copy Ratio
- Data Ratio
Answer And Explanation
Answer: Option A
Explanation:
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16. A set of physical addresses is also known as ?
- Disk Space
- Address Space
- Memory Space
- Locations
Answer And Explanation
Answer: Option C
Explanation:
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17. Which devices among following are usually designed on the complex electromechanical principle ?
- Printing devices
- Input devices
- Storage devices
- Peripheral devices
Answer And Explanation
Answer: Option B
Explanation:
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18. __ read the data by reflecting pulses of laser beams on the surface ?
- Magnetic disk
- Optical disk
- Floppy disk
- ROM
Answer And Explanation
Answer: Option B
Explanation:
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19. If CPU and I/O interface share a common bus than transfer of data between two units is known as ?
- Asynchronous
- Clock dependent
- Synchronous
- Decoder independent
Answer And Explanation
Answer: Option C
Explanation:
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20. All the operations in a digital system are synchronized by a clock that is generated by ?
- Clock
- Clock generator
- Pulse
- Pulse generator
Answer And Explanation
Answer: Option D
Explanation:
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21. Asynchronous means ?
- Not in step with the elapse of time
- Not in step with the elapse of address
- Not in step with the elapse of data
- Not in step with the elapse of control
Answer And Explanation
Answer: Option A
Explanation:
Computer System Architecture Questions Answers
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22. __ is a single control line that informs destination unit that a valid is available on the bus ?
- Ping
- Token
- Handshake
- Strobe
Answer And Explanation
Answer: Option D
Explanation:
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23. Which technique has one or more control signal for acknowledgement that is used for intimation ?
- Ftp
- Ping
- Strobe
- Handshaking
Answer And Explanation
Answer: Option D
Explanation:
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24. A keyboard has which type of asynchronous transfer mode ?
- Serial
- Parralel
- Optimal
- Joint
Answer And Explanation
Answer: Option A
Explanation:
In serial transfer each bit is sent one after the another in a sequence of event and requires just one line.
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25. Which technique helps processor to run a program concurrently with input output operations ?
- IOP
- DMA
- Interrupt driven I/O
- DCA
Answer And Explanation
Answer: Option C
Explanation:
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26. Which exception is also known software interrupt ?
- Trap
- Call
- System Call
- All of above
Answer And Explanation
Answer: Option C
Explanation:
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27. User programs interact with I/O devices through ?
- Operating System
- Hardware
- Buses
- Processor
Answer And Explanation
Answer: Option A
Explanation:
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28. Which table handle store address of interrupt handling subroutine ?
- Vector table
- Symbol link table
- Interrupt vector table
- None of above
Answer And Explanation
Answer: Option C
Explanation:
Computer System Architecture Questions Answers
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29. Which interrupt establishes a priority over the various sources to determine which request should be entertained first ?
- Polling
- Daisy chaining
- Priority interrupt
- All of above
Answer And Explanation
Answer: Option C
Explanation:
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30. Which technique is used that identifies the highest priority resource by means of software ?
- Daisy chaining
- Polling
- Priority
- Chaining
Answer And Explanation
Answer: Option B
Explanation:
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31. Which method is used to establish priority by serially connecting all devices that request an interrupt ?
- Interrupt
- Polling
- Priority
- Daisy chaining
Answer And Explanation
Answer: Option D
Explanation:
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32. What is meaning of "VAD" ?
- Velocity Address
- Viscous Address
- Vector Address
- Volatile Address
Answer And Explanation
Answer: Option C
Explanation:
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33. What is meaning of DMAC ?
- Dual memory access controller
- Direct memory access controller
- Direct memory access computer
- Direct memory accumulator controller
Answer And Explanation
Answer: Option B
Explanation:
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34. What is meaning of IOP ?
- Input output processor
- Input output product
- Input output producer
- Input output processing
Answer And Explanation
Answer: Option A
Explanation:
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35. Which refers the execution of various software process concurrently ?
- IOP
- DCP
- Multiprocessor
- Serial Communication
Answer And Explanation
Answer: Option C
Explanation:
Computer System Architecture Questions Answers
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36. Which is used for this and known as high speed buffer exist with almost each process ?
- Primary
- Secondary
- Cache
- RAM
Answer And Explanation
Answer: Option C
Explanation:
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37. In which condition only one process holds a resource at a given time ?
- Circular queue
- Hold and Wait
- Mutual exclusion
- Non preemption
Answer And Explanation
Answer: Option C
Explanation:
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38. In which condition one process holds the allocated resources and other waits for it ?
- Non preemption
- Mutual exclusion
- Hold and wait
- All of above
Answer And Explanation
Answer: Option C
Explanation:
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39. What is meaning of PCB ?
- Process control block
- Preempitive control block
- Process close block
- Process carrying block
Answer And Explanation
Answer: Option A
Explanation:
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40. Arithmetic instruction are used to perform operation on ?
- Non Numerical data
- Numerical data
- Both of above
- None of above
Answer And Explanation
Answer: Option B
Explanation:
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41. What Mnemonic represents ?
- Strings
- Physical Address
- Operation Address
- Operation codes
Answer And Explanation
Answer: Option D
Explanation:
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42. What is full form of LED ?
- Low Emitting Diode
- Light Emitting Diode
- Light Emitting Data
- Light Encounter Diode
Answer And Explanation
Answer: Option B
Explanation:
In optical mouse we use pair of LED.
Computer System Architecture Questions Answers
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43. Multiprocessor uses large caches but limited process that shares ___ ?
- Control Bus
- Memory Bus
- Multiple memory bus
- Single memory bus
Answer And Explanation
Answer: Option D
Explanation:
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44. Intercrosses arbitration system for multiprocessor shares a __ ?
- Control Bus
- Domain Bus
- Primary Bus
- Common Bus
Answer And Explanation
Answer: Option D
Explanation:
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45. What is full form of LSD ?
- Less significant data
- Less significant digit
- Least significant data
- Least significant digit
Answer And Explanation
Answer: Option D
Explanation:
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46. Which system was used extensively by early mini computers ?
- Binary number
- Decimal number
- Hexadecimal number
- Octal number
Answer And Explanation
Answer: Option D
Explanation:
Note : Please note that question is asked about early mini computers.
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47. Three bit binary numbers can be represented by ?
- Binary number
- Decimal number
- Hexadecimal number
- Octal number
Answer And Explanation
Answer: Option D
Explanation:
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48. Which operation with floating point numbers are more complicated then arithmetic operation with fixed point number ?
- Logical operation
- Arithmetic operation
- Both of above
- None of above
Answer And Explanation
Answer: Option B
Explanation:
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49. In stack organization the insertion operation is known as ?
- Pop
- Push
- Down
- Upper
Answer And Explanation
Answer: Option B
Explanation:
Computer System Architecture Questions Answers
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50. EA stands for ?
- Effective address
- Effective absolute
- Effective add
- End address
Answer And Explanation
Answer: Option A
Explanation:
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51. The operating mode of I/O devices is __ for different devices ?
- Same
- Different
- Optimum
- Medium
Answer And Explanation
Answer: Option B
Explanation:
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52. ____ processor has to check continuously till device becomes ready for transferring the data ?
- DMA
- Interrupt-initiated I/O
- IOP
- DCP
Answer And Explanation
Answer: Option B
Explanation:
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53. Instruction that are used for reading from memory by an IOP called ?
- Commands
- Pulses
- Blocks
- Interrupt
Answer And Explanation
Answer: Option A
Explanation:
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54. Which memory is assembled between main memory and CPU ?
- Primary Memory
- Secondary Memory
- Registers
- Cache Memory
Answer And Explanation
Answer: Option D
Explanation:
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55. A number system that uses only two digits, 0 and 1 is known as ?
- Octal number system
- Hexadecimal system
- Binary system
- Decimal system
Answer And Explanation
Answer: Option C
Explanation:
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56. Which system has a base or radix of 10 ?
- Binary
- Octal
- Hexadecimal
- Decimal
Answer And Explanation
Answer: Option D
Explanation:
Computer System Architecture Questions Answers
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57. An instruction code must specify the address of the ?
- Operand
- Opecode
- Both of above
- None of above
Answer And Explanation
Answer: Option A
Explanation:
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58. UMA stands for ?
- Unit memory access
- Uniform memory access
- Unit memory array
- Unit metadata access
Answer And Explanation
Answer: Option B
Explanation:
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59. Which types of register holds a single vector containing at least two read ports and one write ports ?
- Data system
- Vector register
- Database
- Memory
Answer And Explanation
Answer: Option B
Explanation:
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60. Which register is memory pointer ?
- Source index
- Instruction register
- Stack pointer
- Program counter
Answer And Explanation
Answer: Option D
Explanation:
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61. In which of the following status flags required for data transfer are present ?
- Interface Circuit
- Parallel Line
- Device Circuit
- None of Above
Answer And Explanation
Answer: Option A
Explanation:
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