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CompTia A+ 220-901 > 220-901 C > Flashcards

220-901 C Flashcards

1
Q

Your Coworker Patrick has a Core i5 3.1 Ghz CPU and wants you to tell him what the bus speed is and what the maximum multiplier is. What do you tell him?

A. 3.1 GHz and 31
B. 3.1 GHz and 100
C. 100 and 31
D. 200 and 31

A

C.

The default bus speed is 100 Mhz and the maximum multiplier is 31 times that. (100 MHz x 31 = 3.1 GHz) Processor is at this speed if it requires it. In this scenario, it would hover around 1600 MHz (1.6 GHz) for a multiplier of 16. The Multiplier increase if the system runs more applications and requires more CPU power. Intel CPUs also have Turbo Boost tech which allows CPU’s speed to be raised by 10 percent beyond the maximum. In this scenario, it go up to 3.4 GHZ. Many motherboard allow you to increase system bus speed.. Some stop at 105 Mhz and some up to 300 MHz

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2
Q

A user complains that his network interface card (NIC) is not functioning and had no link lights. The weather has been changing drastically over the past few days and the humidity and temp have been rising and falling every day. Which of the following could be the direct cause of this problem?

A. Thermal expansion and contraction
B. Thermal Sublimation
C. Chip Creep
D. POST errors

A

A.

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3
Q

A user reports that the battery in his Windows laptop is often low on power. Which of the following should you recommend to help the user conserve laptop battery power?

A. Configure the laptop power options to restore power usage when the laptop is unattended.
B. Configure the laptop power options to the power saver plan.
C. Have the user remove the battery and run the laptop using the electrical cord only.
D. Have the user run the laptop using the battery until all the power is depleted and then recharge the battery

A

B.

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4
Q

Which of the following is indicated by the repetitive flashing lights on the keyboard during POST?

A. A software error
B. A hardware error
C. A password is required
D. An external peripheral error

A

B.

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5
Q

Which network type enables high-speed data communication and is the most difficult to eavesdrop on?

A. Satellite
B. DSL
C. Fiber Optic
D. Cable

A

C.

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6
Q

Which of the following is a difference between cellular WAN card and a WLAN card?

A. A cellular WAN card requires a subscription to a cellular provider whereas a WLAN card can work without provider payment
B. A cellular WAN card works on most public wireless access points, whereas a WLAN card is more proprietary.
C. A WLAN card generally has a range of 6 miles, whereas a cellular WAN card is limited in range to 1200 feet
D. A WLAN card is usually an external card, whereas a cellular WAN card is usually an internal card.

A

A.

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7
Q

Which of the following defines the protocols associated with the following TCP or UDP port numbers, in order?
21,22,25,53,443,3389

A

FTP, SSH, SMTP, DNS, HTTPS, RDP

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8
Q

You are tasked with installing a new SATA revision 3.0 hard driver controller so that the comp can access hard drives at 6 Gb/s. Which step list will most likely prevent errors?

A. Apply System Updates, Install the card, Install Drivers, Upgrade Card’s firmware, Update BIOS
B.Apply System Updates, Update BIOS, Install the card, Install Drivers, Upgrade Card’s firmware
C. Install the card, Install Drivers Updates, Update BIOS, Apply System updates, Upgrade Card’s firmware

A

B.

Apply System Updates, Update BIOS, Install the card, Install Drivers, Upgrade Card’s firmware

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9
Q

A new video card you are installing requires a 600 W power supply. The power supply should have how many pins on the main cable?

A. 6 pins 
B. 8 Pins 
C. 20 Pins
D. 24 Pins 
E. 40 pins
A

D.

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10
Q

Console—CompA—CompB—CompC—CompD
DVI DVI DVI DVI DVI
usb-usb usb-usb usb-usb usb-usb usb-usb

PC-A, PC-B, PC-C, keyboard and mouse

Which of the follow is the minimum number of USB cables required to set up the three keyboard and mouse?

A. 2
B.6
C. 8
D. 10

A

C.

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11
Q

Which of the following data rates are supported by PC3-10600 memory.

A. 1333 MT/s and 1066 MT/s
B. 1066 MT/s and 800 MT/s
C. 1600 MT/s and 1333 MT/s
D. 1600 MT/s and 800 MT/s

A

A.

1066 is the underclock value
Divide 10600 by 8. Divide that number to find out I/O bus clock rate, which would be 667 Mhz. 1333 is the data rate.

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12
Q

Which of the following properties of a heat sink has the greatest effect on heat dissipation?

A. Connection Type
B. Shape
C. Surface Area
D. Proximity to the power supply

A

C.

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13
Q

A PC has the memory config listed below. Assuming RAM is the same price per MB, which of the following would be the least expensive when upgrading the PC to 12 gb of ram?

Slot 1 - 4096 MB DDR3 PC3-10600
Slot 2 - 2048 MB DDR3 PC3-10600

A. Single 6 GB DDR3 PC3-12800
B. A single 8 GB DDR3 PC3-12800
C. A single 10 GB DDR3 PC3-10600
D. Two 6 GB DDR3 PC3-10700

A

B.

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14
Q

Which of the following multimeter settings should be used only when there is no electrical flow through the part that is being tested? select 2

A. Continuity 
B. Wattage 
C. Voltage
D. Amps
E. Resistance
A

A. and E.

Example of continuity or resistance test include testing a fuse’s impedance (in ohms) and testing a network cable for continuity

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15
Q

You need to setup a server system that will run in a VM. It will have the bulk of network comp resources and will supply much of the resource necessary to the client computers that will connect to it. You are also required to set up client computers. Which two types of systems (server and client) will you be implementing?

A. A CAD/CAM workstation
B. A virtualization workstation and thin clients
C. Home server PC and thick clients
D. AV workstation and laptops

A

B.

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16
Q

Your boss can receive email but cant seem to send email with the installed email client software. Which protocol is not configured properly?

A. SMTP
B. POP3
C. FTP
D. HTTP

A

A.

17
Q

A customer’s laptop LCD needs replacement. Which of the following tools should be used to open the case?

A.Pliers
B. Plastic Tweezers
C. Flathead screwdriver
D. Plastic Shim

A

D.

18
Q

When a PC is first booted, which of the following tests the processor, RAM, video card, hdd controllers, drives and keyboard?

A. CMOS chip
B. BIOS setup
C. POST
D. Bootstrap loader

A

C.

19
Q

A laser printer’s primary corona wire does which of the following?

A. Puts a uniform of negative charge on the drum
B. Puts a uniform positive charge on the drum
C. Puts the toner on the drum
D. Removes static electricity

A

A.

20
Q

Which device on the motherboard retains variable info such as time and date?

A. BIOS
B. CMOS
C. CR2032
D. Setup

A

B. CMOS

21
Q

Which of the following can be used to verify settings between the computer and connected modem?

A. AT&V
B. IRQ
C. MBR
D. QPI

A

A.

AT&V modem diagnostic command is used to verify connectivity and display settings between a computer and a connected dial up modem.

IRQ = Interrupt ReQuest; a number assigned to a device that allows it to initiate comms with the CPU

MBR = master boot record; a boot sector on PCs is 512 bytes in size and is whitin the first sector of the hard drive. Often holds partition table and/or bootstrapping info.

QPI = Quickpath Interconnect, an intel tech that connects chipset to the CPU. More powerful version of Direct Media Interface (DMI)

22
Q

The Marketing printer has been used for four years. Which of the following statements represents a best practice for ensuring the printer remains in good working order?

A. You should clean the printer
B. You should install a maintenance kit
C. You should clear the counter
D. You should print a test page

A

B.

23
Q

The drum of a laser printer should never be exposed to which of the following?

A. Airflow
B. Cold temp
C. Strong light source
D. Toner dust

A

C.

24
Q

Which of the following tools should be used to determine why a computer fails to boot?

A. Cable Tester
B. Loopback plug
C. PSU tester
D. Tone and probe kit

A

C.

25
Q

Which type of cache memory is shared by all cores of a cpu?

A. L1
B. L2
C. L3
D. DRAM

A

C.

L3 cache is shared by all cores
L1 cache (32 KB per core) is built in to the CPU 
L2 Cache (256 KB per core) is built on to the CPU (on-die)
26
Q

Which technology calculates two independent sets of instructions simultaneously, simulating two CPUS?

A. Hyper Threading
B. HyperTransport
C. Turbo Boost
D. Multi Core

A

A.

Hypertransport is a high speed link between various devices such as the CPU and northbridge on AMD systems.

Turbo Boost is basic form of overclocking that Intel allows with their processors

Multi-core is technology where a CPU physically contains two or more processor cores

27
Q

Which of the following is used to measure TDP?

A. Volts
B. Watts
C. Ohms
D. Amps

A

B.

CompTia A+ 220-901 (3 decks)

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