8.What function is performed by the external power supply of a laptop?
❍ A. Increases voltage
❍ B.Stores power
❍ C.Converts DC power to AC power
❍ D.Converts AC power to DC power
Ans. D
Wednesday, November 30, 2011
7
7.A computer you are working on has a lot of dust inside. How should you clean
this?
❍ A.Disassemble the power supply and remove the dust.
❍ B.Use a vacuum to clean up the dust.
❍ C.Use a surface dust cleaning solution.
❍ D.Use compressed air to remove the dust.
Ans. D
this?
❍ A.Disassemble the power supply and remove the dust.
❍ B.Use a vacuum to clean up the dust.
❍ C.Use a surface dust cleaning solution.
❍ D.Use compressed air to remove the dust.
Ans. D
6
6.What is the easiest way to monitor the battery health of a UPS?
❍ A.Use the UPS monitoring software.
❍ B.Use a voltmeter.
❍ C.Replace the battery every year.
❍ D.Use Event Viewer.
Ans. A
❍ A.Use the UPS monitoring software.
❍ B.Use a voltmeter.
❍ C.Replace the battery every year.
❍ D.Use Event Viewer.
Ans. A
5
5.You start a new computer and nothing seems to happen. Upon closer inspec-
tion, you can hear the hard drive spinning; however, nothing is coming up on
the monitor. Which of the following would not be a reason for this?
❍ A.The monitor is not on.
❍ B.The video card is not properly seated.
❍ C.The monitor is not connected to the PC.
❍ D.The PC is not connected to the AC outlet.
Ans. D
tion, you can hear the hard drive spinning; however, nothing is coming up on
the monitor. Which of the following would not be a reason for this?
❍ A.The monitor is not on.
❍ B.The video card is not properly seated.
❍ C.The monitor is not connected to the PC.
❍ D.The PC is not connected to the AC outlet.
Ans. D
4
4.Which of the following precautions should be taken so that ESD does not
cause damage to a computer that is being repaired? Select all that apply.
❍ A.Use an antistatic strap.
❍ B.Wear shoes with rubber soles.
❍ C.Spray antistatic spray on the components.
❍ D.Put the computer on an antistatic mat.
Ans. A and D
cause damage to a computer that is being repaired? Select all that apply.
❍ A.Use an antistatic strap.
❍ B.Wear shoes with rubber soles.
❍ C.Spray antistatic spray on the components.
❍ D.Put the computer on an antistatic mat.
Ans. A and D
Practical Application
3.What is the minimum number of hard drives necessary to implement
RAID 5?
❍ A. 2
❍ B. 5
❍ C. 3
❍ D. 4
Ans. C
RAID 5?
❍ A. 2
❍ B. 5
❍ C. 3
❍ D. 4
Ans. C
CompTIA A+ 220-702
2. In a standard ATX-based computer, how many IDE devices can be
installed?
❍ A. 1
❍ B. 2
❍ C. 4
❍ D. 8
Ans. c. 4
installed?
❍ A. 1
❍ B. 2
❍ C. 4
❍ D. 8
Ans. c. 4
Practical Application
1.What is the delay in the RAM’s response to a request from the memory
controller called?
❍ A.Latency
❍ B.Standard deviation
❍ C.Fetch interval
❍ D.Lag
Answer: A.
controller called?
❍ A.Latency
❍ B.Standard deviation
❍ C.Fetch interval
❍ D.Lag
Answer: A.
Safari Books Online
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Thursday, November 3, 2011
1.3 Given a scenario, install, Configure, detect problems, troubleshoot and repair/replace laptop components
Components of the LCD including inverter, screen and video card Hard drive and memory Disassemble processes for proper re-assembly Document and label cable and screw locations Organize parts Refer to manufacturer documentation Use appropriate hand tools Recognize internal laptop expansion slot types Upgrade wireless cards and video card Replace keyboard, processor, plastics, pointer devices, heat sinks, fans system board, CMOS battery, speakers |
Subpages (1): 1.4 Select and use the following tools
Video 24: Laptops Part 2|32:44
Install, configure, and optimize laptop components and features, communications connections, bluetooth, cellular wan, ethernet, modem, Given a scenario, explain and interpret common laptop issues and determine the appropriate basic troubleshooting method. Issues: video, remove unneeded peripherals, plug in external monitor, check LCD cutoff switch, verify backlight functionality and pixilation, check switch for built-in wifi antennas or external antennas. LCD backlight, lcd inverter, dualview, touch screen, calibrating touch screen, sticky keys, toggle keys, replacing keyboard, numlock, troubleshooting laptops, increase or decrease backlight, laptop temperature, airflow, cooling fan, heat sink, proper screw locations, manufacturer documentation, removing cards prior to shipment.
Install, configure, and optimize laptop components and features, communications connections, bluetooth, cellular wan, ethernet, modem, Given a scenario, explain and interpret common laptop issues and determine the appropriate basic troubleshooting method. Issues: video, remove unneeded peripherals, plug in external monitor, check LCD cutoff switch, verify backlight functionality and pixilation, check switch for built-in wifi antennas or external antennas. LCD backlight, lcd inverter, dualview, touch screen, calibrating touch screen, sticky keys, toggle keys, replacing keyboard, numlock, troubleshooting laptops, increase or decrease backlight, laptop temperature, airflow, cooling fan, heat sink, proper screw locations, manufacturer documentation, removing cards prior to shipment.
1.2 Given a scenario, detect problems, troubleshoot and repair/replace personal computer components
1.2 Detect problems, troubleshoot and repair.replace personal computer components
Storage HDD SATA PATA Solid state FDD Optical drives CD, DVD, RW , Blu-Ray Removable External Motherboards Jumper settings CMOS battery Advanced BIOS settings Bus Speeds Chipsets Firmware updates Sockets types Expansion slots Memory Slots Front panel connectors I/O ports Sound, video, USB 1.1, USB 2.0, serial, IEEE 1394 / Firewire, parallel, NIC, Modem, PS/2 Power Supplies Wattages and Capacity Connector types and quantity Output voltage Processors Socket Types Speed Number of cores Power consumption Cache Front side bus 32bit vs 64bit Memory Adapter cards Graphics cards Sound cards Storage controllers RAID cards (RAID array - levels 0, 1 , 5) eSATA cards I/O cards Fireware USB Parallel Serial Wired and wireless network cards Capture cards (TV, video) Media reader Cooling systems Heat sinks Thermal compound CPU fans |
Video 13: Storage Part 2|37:28
Serial ATA, parallel ATA, PATA, SATA, eSATA, integrated drive electronics, IDE, enhanced integrated drive electronics (EIDE), AT Attachment, ATA, ATAPI, AT Attachment packet interface, actuator arm, actuator, read/write head, platter, hard drive components, track, cylinder, sector, cluster.
Nov 2, 2011 CompTIA A+ Practical Application take 2
candidate score: 581
passing score: 700
1.1 Given a scenario, install, configure and maintain personal computer components.
Storage
passing score: 700
1.1 Given a scenario, install, configure and maintain personal computer components.
Storage
HDD
SATA
PATA
Solid state
FDD
Optical drives
CD, DVD, RW , Blu-Ray
Removable
External
Motherboards
Jumper settings
CMOS battery
Advanced BIOS settings
Bus Speeds
Chipsets
Firmware updates
Sockets types
Expansion slots
Memory Slots
Front panel connectors
I/O ports
Sound, video, USB 1.1, USB 2.0, serial, IEEE 1394 / Firewire, parallel, NIC, Modem, PS/2
Power Supplies
Wattages and Capacity
Connector types and quantity
Output voltage
Processors
Socket Types
Speed
Number of cores
Power consumption
Cache
Front side bus
32bit vs 64bit
Memory
Adapter cards
Graphics cards
Sound cards
Storage controllers
RAID cards (RAID array - levels 0, 1 , 5)
eSATA cards
I/O cards
Fireware
USB
Parallel
Serial
Wired and wireless network cards
Capture cards (TV, video)
Media reader
Cooling systems
Heat sinks
Thermal compound
Video 12: Storage Part 1|32:34
Given a scenario, install, configure and maintain personal computer components, Categorize storage devices and backup media, FDD, HDD, Solid state vs. magnetic, Optical drives, CD / DVD / RW / Blu-Ray, Removable storage, Solid state (e.g. thumb drive, flash, SD cards, USB), External CD-RW and hard drive, Hot swappable devices and non-hot swappable devices.
Given a scenario, install, configure and maintain personal computer components, Categorize storage devices and backup media, FDD, HDD, Solid state vs. magnetic, Optical drives, CD / DVD / RW / Blu-Ray, Removable storage, Solid state (e.g. thumb drive, flash, SD cards, USB), External CD-RW and hard drive, Hot swappable devices and non-hot swappable devices.
Wednesday, November 2, 2011
Computer management
Upon trying to print, a computer gives the error that the printer spooler service is not started. Which of the following tools could be used to restart the printer spooler service? (Select TWO).
a.
Printer Propertiesb. c. d. e.
http://www.windowsreference.com/windows-vista/how-to-use-disk-management-in-vista/
Device Manager
Disk Management MMC Plug-in
Computer Management
Services MMC Plug-in
a.
Printer Propertiesb. c. d. e.
http://www.windowsreference.com/windows-vista/how-to-use-disk-management-in-vista/
Device Manager
Disk Management MMC Plug-in
Computer Management
Services MMC Plug-in
NET USE
A hard drive set as a dynamic disk is moved from oneWindows computer to another. None of the disks are seen in My Computer. Which of the following tools would be BEST to start troubleshooting?
a.
DirectX Diagnostics
b.
Disk Management MMC Plug-in
c.
NET USE
d.
System Configuration Utility
Ans. b
a.
DirectX Diagnostics
b.
Disk Management MMC Plug-in
c.
NET USE
d.
System Configuration Utility
Ans. b
Power over Ethernet (PoE)
A technician is setting up VoIP service for a SOHO customer. Which of the following should the technician enable on the customers home router?
a.
QoS
b.
SSID
c.
PoE
d.
WPA
a.
QoS
b.
SSID
c.
PoE
d.
WPA
Quality of Service (QoS)
A user reports that VoIP telephone calls have static and a noticeable delay whenever other users are using the home network. Which of the following routing features should be used on the home network to resolve this issue?
a.
QoS
b.
NAT
c.
Port forwarding
d.
Port triggering
Ans. A.
http://en.wikipedia.org/wiki/Quality_of_service
The quality of service (QoS) refers to several related aspects of telephony and computer networks that allow the transport of traffic with special requirements. In particular, much technology has been developed to allow computer networks to become as useful as telephone network for audio conversations, as well as supporting new applications with even more strict service demands.
Answer is not b.
a.
QoS
b.
NAT
c.
Port forwarding
d.
Port triggering
Ans. A.
http://en.wikipedia.org/wiki/Quality_of_service
The quality of service (QoS) refers to several related aspects of telephony and computer networks that allow the transport of traffic with special requirements. In particular, much technology has been developed to allow computer networks to become as useful as telephone network for audio conversations, as well as supporting new applications with even more strict service demands.
Answer is not b.
Network address translation
In computer networking, network address translation (NAT) is the process of modifying IP address information in IP packet headers while in transit across a traffic routing device.
Cable Select (C/S)
A user has installed a second hard drive into a computer and receives a message stating Invalid Boot Volume. Which of the following should a technician recommend to solve this problem?
a.
Set the jumpers on both hard drives to master.
b.
Set the jumpers on both hard drives to C/S.
c.
Set the jumpers on both hard drives to secondary.
d.
Remove the jumpers from both hard drives.
Answer: b.
http://www.onlinecomputertips.com/hardware/hd_jumpers.html
a.
Set the jumpers on both hard drives to master.
b.
Set the jumpers on both hard drives to C/S.
c.
Set the jumpers on both hard drives to secondary.
d.
Remove the jumpers from both hard drives.
Answer: b.
http://www.onlinecomputertips.com/hardware/hd_jumpers.html
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