Key Terms in Software

Creation PDF 417 in Software Key Terms

active power factor correction (active PFC) (201) alternating current (AC) (188) amperes (amps or A) (188) ATX (197) direct current (DC) (188) IEC-320 (189) joule (193) mini connector (196) Molex connector (196) multimeter (190) ohms (188) P1 power connector (195) power conditioning (193) power supply unit (PSU) (186) rails (200) resistance (188) SATA power connector (196) smart UPS (194) soft power (197) surge suppressor (192) uninterruptible power supply (UPS) (193) volts (V) (188) wattage (watts or W) (188)

Use the Key Terms list to complete the sentences that follow Not all terms will be used 1 Supply power to the floppy drive by using the ____________ from the power supply 2 The electric company provides ____________ power that the power supply converts to ____________ for use by the computer components 3 If the ____________ are left off the expansion slots, the computer may overheat 4 The ____________ form factor power supply attaches to the motherboard with a ____________ and supplies 5 V to the motherboard at all times 5 Be sure your surge suppressor has a ____________ rating of at least 800 6 ____________ is a measurement unit for the amount of electrons flowing past a certain point on a wire 7 Be sure the ____________ rating for your power supply is greater than the minimum required by all devices in the computer 8 The ability to split voltage supplies into separate ____________ ensures that no device will hog all the available power 9 To supply power to an internal DVD drive, you would most likely plug in a _______________ from the power supply 10 Resistance to the flow of electrons is measured in _______________

1 When you test voltage with a multimeter, you can assume the outlet or connector is functioning properly if the reading is within a certain percentage of the expected number What is that maximum percentage by which the reading can vary A 5 percent B 10 percent C 20 percent D 25 percent

2 What voltage does an ATX12V P4 connector provide for motherboards A 33 V B 33 V, 5 V C 5 V D 12 V 3 When testing an AC outlet, what voltage should the multimeter show between the neutral and ground wires A 120 V B 60 V C 0 V D 120 V 4 What sort of power connector does a hard drive typically use A Molex B Mini C Sub-mini D Micro 5 Arthur installed a new motherboard in his case and connected the ATX power, but his system would not turn on He sees an extra 4-wire port on the motherboard What s he missing A He needs a power supply with a P2 connector for plugging in auxiliary components B He needs a power supply with a P3 connector for plugging in case fans C He needs a power supply with a P4 connector for plugging into Pentium IV and some Athlon XP motherboards D He needs a power supply with a Aux connector for plugging into a secondary power supply 6 What is the effect of exceeding the wattage capabilities of a power supply by inserting too many devices A The system will boot normally, but some of the devices will not function properly B The system will boot normally and all of the devices will work, but only for a limited time After an hour or so, the system will spontaneously shut down

C The system will not boot or turn on at all D The system will try to boot, but the overloaded power supply will fail, burning up delicate internal capacitors 7 Where do you put the multimeter leads when you test a Molex connector A The red lead should always touch the red wire; the black lead should touch a black ground wire B The red lead should always touch the black ground wire; the black lead should always touch the red hot wire C The red lead should always touch the yellow hot wire; the black lead should touch the red hot wire D The red lead should touch either the red or yellow hot wire; the black lead should touch a black ground wire 8 What is the minimum PSU required for an ATX system that requires Molex, mini connectors, and SATA connectors A ATX B ATX12V 13 C ATX12V 20 D EPS12V 9 Which of the following is not a PSU form factor A TFX12V B SFX12V C CFX12V D LPX12V 10 Which statement is true A Removing the expansion slot covers on the back of your case will improve cooling by allowing hot air to escape B Shop around when purchasing a case as you will often find good deals that include a powerful PSU C Always keep the power supply plugged in to the wall outlet when working on the inside of a computer as this helps to ground it D An AC testing device is never as accurate as a multimeter

Mike Meyers CompTIA A+ Guide: Essentials (Exam 220-601)

11 Which of the following EPS12V features was incorporated into the ATX12v20 standard A The P4 motherboard power connector B Voltage rails C The 6-pin AUX connector D Soft power 12 Which reading shows a good outlet voltage A Hot to Neutral 0 V B Hot to Ground 0 V C Neutral to Ground ~115 V D Neutral to Hot ~115 V 13 Which device provides battery backup in addition to protection from electrical anomalies A Surge suppressor B Power conditioner C Uninterruptible power supply D Active power factor correction

14 Elise needs a Molex connector for her new DVD burner, but her power supply doesn t have any more What is her best option A Purchase a Molex splitter to create more connections B Purchase a new power supply with enough connections C Purchase a MiniMolex converter and use a free mini connector to power the DVD drive D Return the DVD burner and purchase an external USB DVD burner 15 What feature of power supplies eliminates harmful harmonics A Power conditioning B Active power factor correction C Soft power D Voltage rails