ARCHITECTURE (Q&A)

 AJAKAI ICT- COMPUTER QUESTIONS AND ANSWERS

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1. Which among following can be considered as most advanced ROM ? DRAM EEPROM RAM PROM   2. One byte equals to how many bits ? 4 bits 8 bits 12 bits 16 bits 3. Which among following is Volatile ? ROM EPROM DROM RAM   4. Where the result of an arithmetic and logical operation are stored ? In Accumulator In Cache Memory In ROM In Instruction Registry   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   6. Which determines the address of I/O interface ? Register select Chip select Both of above None of above 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   8. Whenever CPU detects an interrupt, what it do with current state ? Save it Discard it Depends system to system First finish it   9. I/O processor has direct access to ? Main Memory Secondary Memory Flash Memory ROM   10. The address mapping is done, when the program is initially loaded is called ? Relocation Dynamic relocation Static relocation Executable relocation   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   12. A microprogram is sequencer perform the operation ? Read Write Read and Write Read and Execute   13. Which among following is an important data transfer technique ? CAD CAM DMA MMA   14. RISC stands for ? Risk Instruction Source Computer Reduced Instruction Set Computer Risk Instruction Set Computer Risk Instruction Set Computing

15. The performance of the cache memory is measured in terms of ? Hit Ratio Chat Ratio Copy Ratio Data Ratio 16. A set of physical addresses is also known as ? Disk Space Address Space Memory Space Locations   17. Which devices among following are usually designed on the complex electromechanical principle ? Printing devices Input devices Storage devices Peripheral devices   18. __ read the data by reflecting pulses of laser beams on the surface ? Magnetic disk Optical disk Floppy disk ROM   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 20. All the operations in a digital system are synchronized by a clock that is generated by ? Clock Clock generator Pulse Pulse generator   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   22. __ is a single control line that informs destination unit that a valid is available on the bus ? Ping Token Handshake Strobe   23. Which technique has one or more control signal for acknowledgement that is used for intimation ? Ftp Ping Strobe Handshaking   24. A keyboard has which type of asynchronous transfer mode ? Serial Parralel Optimal Joint   25. Which technique helps processor to run a program concurrently with input output operations ? IOP DMA Interrupt driven I/O DCA   26. Which exception is also known software interrupt ? Trap Call System Call All of above   27. User programs interact with I/O devices through ? Operating System Hardware Buses Processor 28. Which table handle store address of interrupt handling subroutine ? Vector table Symbol link table Interrupt vector table None of above

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   30. Which technique is used that identifies the highest priority resource by means of software ? Daisy chaining Polling Priority Chaining   31. Which method is used to establish priority by serially connecting all devices that request an interrupt ? Interrupt Polling Priority Daisy chaining   32. What is meaning of "VAD" ? Velocity Address Viscous Address Vector Address Volatile Address   33. What is meaning of DMAC ? Dual memory access controller Direct memory access controller Direct memory access computer Direct memory accumulator controller   34. What is meaning of IOP ? Input output processor Input output product Input output producer Input output processing   35. Which refers the execution of various software process concurrently ? IOP DCP Multiprocessor Serial Communication   36. Which is used for this and known as high speed buffer exist with almost each process ? Primary Secondary Cache RAM 37. In which condition only one process holds a resource at a given time ? Circular queue Hold and Wait Mutual exclusion Non preemption   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 39. What is meaning of PCB ? Process control block Preempitive control block Process close block Process carrying block   40. Arithmetic instruction are used to perform operation on ? Non Numerical data Numerical data Both of above None of above

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