A capacitor is measured in which of the following units?
Answer: C
Correct answer: Farads
Capacitance is measured in farads. Volts measure potential difference and ohms resistance.
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IBM's Micro Channel Architecture (MCA) specifies which type of the following bit access widths?
Answer: C
Correct answer: 16 bit & 32 bit
IBM's Micro Channel was offered in 16-bit and 32-bit widths, with automatic configuration and no jumpers - advanced for its day, but proprietary, which is why EISA was created in answer to it.
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IRQ6 is typically reserved for:
Answer: A
Correct answer: The floppy
IRQ6 is the floppy disk controller. IRQ1 is the keyboard and IRQ5 is usually LPT2 or a sound card.
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Resistance is measured in units of:
Answer: A
Correct answer: ohms
Resistance is measured in ohms; farads measure capacitance and amperes current.
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Teletypewriter terminal is an example of
Answer: C
Correct answer: input/output devices
A teletypewriter both accepts typed input and prints output, so it works in both directions - which is why it was the standard console of early computers.
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Which best describes a fragmented hard drive:
Answer: D
Correct answer: Files are not stored in consecutive clusters
Fragmentation is a matter of layout, not of damage: as files are created and deleted, a new file is written into whatever gaps exist, so its clusters end up scattered and the head must seek between them.
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Voltage is measured:
Answer: A
Correct answer: in parallel
Voltage is a difference between two points, so the meter is placed across the component, in parallel with it, and the circuit need not be broken. Current is what requires the circuit to be opened and the meter placed in series.
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Which of the following items would require you t.o comply with EPA disposal guidelines?
Answer: D
Correct answer: Battery
Batteries contain heavy metals and must be disposed of under environmental regulations rather than thrown away. Keyboards, boards and supplies are ordinary electronic waste.
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In Inkjet technology the droplets of ink are deflected by?
Answer: A
Correct answer: multi directional nozzles
In a drop-on-demand inkjet the position of each drop is fixed by which nozzle fires; the head is moved across the page and the paper advanced. Charged deflection plates belong to continuous inkjet printing, which is used industrially rather than in desktop printers.
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The POST routine, which counts system board RAM first, is stored in:
Answer: C
Correct answer: ROM BIOS
The power-on self test runs before anything has been loaded from disk, so it must already be present in firmware - the ROM BIOS. CMOS holds settings, not code.
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