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- The main bus in the IBM PC computer are: *0/1PCI (Peripheral Component Interconnect)ISA and PCINone of the other choicesISA (Industry Standard Architecture)
- Which of the following statements about the CMOS is incorrect? *1/1Is volatileTo contain BIOSTo hold the configuration parametersTo hold the current time and date
- Which of the following instructions should be allowed in user mode? *1/1Read the time-of-day clock Set the time-of-day clockDisable all interruptsChange the memory map
- An operating system *1/1Manages software resources in a computer systemDeals with complex hardware resources and provides the user a virtual/extended machine that is much easier to deal with than the physical machineManages hardware resources in a computer systemAll of the other choices
- What part of the boot process determines whether the peripheral devices are working properly? *1/1ROMPOSTCMOSBIOS
- Which of the following instructions should be allowed only in kernel mode? *1/1All of the other choicesChange the memory mapSet the time-of-day clockDisable all interrupts
- VMware Workstation is: *1/1Type 2 Hypervisor Host Operating systemType 1 HypervisorGuest Operating system
- Which of special register contains the condition code bits, the CPU priority, the mode bit and other control bits)? *1/1None of the other choicesProgram Counter (PC)Instruction Register (IR)Program Status Word (PSW)
- Which of the following is correct about advantages of layered system? *1/1None of the other choicesEasier to debug from lower to upper layerEasier to extend and Easier to debug from lower to upper layerEasier to extend
- Which of the following is not a operating mode of CPU *1/1Kernel modeUser modeManagement modeNone of the other choices
- As one proceeds down the memory hierarchy (from inboard memory to offline storage), the following conditions apply: *1/1Increasing capacityDecreasing cost per bitAll of the other choices Increasing access time
- Where is the position of the operating system in computer system: 1/1Above the hardware and under the user interface programBetween the user interface program and the application ProgramIn user spaceNone of the other choices
- Examples of general purpose stored program computers include the following except *0/1Personal computersNetwork serversWorkstations MP3 player
- Which is not an example of a resource that is commonly space-multiplexed? *0/1Video RAMMain memoryCPUHard drive
- Which of the main bus in the IBM PC computer that can run at 66 MHz and transfer 8 bytes at a time? *1/1PCI (Peripheral Component Interconnect)ISA (Industry Standard Architecture)None of the other choicesISA and PCI
- Which of the following instructions should be allowed only in kernel mode? *1/1ADD of two numbersAND of two numbersDisable all interruptsRead the time-of-day clock
- The language of the CPU is known as its *1/1None of the other choicesInstruction setRegister setControl unit set
- The four main structural elements of a computer system are: *1/1Processor, Registers, I/O Modules, Main MemoryNone of the other choicesProcessor, Registers, Main Memory, System BusProcessor, Main Memory, I/O Modules, System Bus
- Which of special register in the CPU points to the top of the current stack in the memory? *PCPSWIRSP
- The major operating system services provide mechanisms for secure and efficient are: *1/1Communication between processesAll of the other choicesExecution of a program, I/O operations performed by it, and detecting and reporting errors caused by itFile manipulation