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Computer Hardware

Computer Hardware
What command is used to reset a MODEM when using the

DCE
ATR
None of these
ATZ
DTR

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Computer Hardware
You get a CMOS checksum error during bootup. What is most likely the cause?

hard drive types are incorrectly defined
CMOS battery is nearing end of life
power supply is bad
BIOS needs updating

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Computer Hardware
Which type of system hoard is the MOST likely candidate for processor upgrading if you want maximum performance and future compatibility?

EISA
None of these
PCI
ML
ISA

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Computer Hardware
You can place an ISA device in an EISA slot.

EIDE hard drives
SCSI hard drives
None of these
1

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Computer Hardware
A PC with a 486DX2 processor runs internally at 50Mhz. What speed would its external logic be running?

50Mhz
None of these
100 Mhz
25Mhz
l0Mhz

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Computer Hardware
Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?

defective computer
bad phone line
virus
defective modem
software bug

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