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47
Computer Science
Professional
11/27/2012

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Term
What is attrib.exe +a
list other attrib.
Definition
Used to edit or view the properties of a file
In a command prompt, type "attrib (flags) [drive][path][filename]" along with any switch commands.
(+ a) sets the file attribute to “ready for backup” {Archive file attribute}
These are turned on by the + and off by -
R Read-only file attribute.
A Archive file attribute.
S System file attribute.
H Hidden file attribute.
/S Processes files in all directories in the specified path.
Examples attrib [{+r|-r}] [{+a|-a}] [{+s|-s}] [{+h|-h}] [[Drive:][Path] FileName] [/s[/d]]
ATTRIB +H C:\AUTOEXEC.BAT will turn the hidden flag on.
ATTRIB -H C:\AUTOEXEC.BAT will turn the hidden flag off.
ATTRIB +R +A +S +H C:\AUTOEXEC.BAT will turn all the flags on
ATTRIB -R -A -S -H C:\AUTOEXEC.BAT will turn them all off.

Typing ATTRIB and a filename will reveal the attributes of
that file. Every file has an Attrib if using NTFS
Example: ATTRIB C:\AUTOEXEC.BAT
Term
What is ACPI and explain the different parts?
Definition
Advanced Configuration and Power Interface
open standard for power saving features on Laptop/Desktop
(standby, sleep, hibernate)
Term
Windows Vista/7 AERO feature
Definition
Minimum Windows Experience Index = 3






or computer / properties
Term
ATX motherboard
Definition
has a (20-pin and a 4-pin power connector) or just a (24-pin power connector)
Term
Adware
Definition
Pop-up of Ads while browsing Internet
Term
Active/Passive CPU cooling
Definition
heatsink/grease/fan
Active slows down the processor after speeding up the fan
Passive slows down the processor before speeding up the fan
In short: when active the fan speed on your laptop will constantly work and cool your laptop. on passive it doesn't work unless the temp is too high and it's forced to cool down the PC. Exept a bit more noise, I think active is the best choice.
Term
Laptop power source
Definition
battery and/or AC adapter
Term
Anti-virus software
Definition
mitigate/remove worms, trojans
Term
Broadcast domain
Definition
A logical division of a computer network
may use Layer 3 router or Layer 3 switch to stop broadcast data to another network
Term
Blue Screen of Death (BSOD)
Definition
Provide detail information about problems to technician
also know as a Stop Error
Stop errors are hardware, updates and driver related, causing the computer to stop responding in order to prevent damage to the hardware or data.
Term
backup disk/tape
Definition
Ways to back up your / needs to store in a secure off-site location
Term
dealing with customer
Definition
the most important customer is the customer standing in front of you
Term
logging or documenting computer problems (knowledge base)
Definition
help to identify common problems
Term
coaxial cable uses what type of cable and connector
Definition
RG-59 type of cable and BNC connector
Term
Printer is printing slightly off color, what do you need to do?
Definition
need to calibrate the color printer
Term
composite video uses what kind of connector?
Definition
using RCA connector
Term
windows “clicklock”
Definition
allows you to drag windows without holding the mouse button
enalbe or disable in Control Panel/Mouse
Term
Classification of information or data, why or what is it used for?
Definition
such as “top secret”, “for your eyes only”
a way of encripting a file that only can be read if you have the code or key.
Term
When gathering info from customer
Definition
do not directly imply what customer may have done
Term
DDR2 RAM, how many pins?
Definition
240-pin
Term
Device Driver
Definition
may re-install driver if device is not working properly
Term
ECC RAM vs. DDRx RAM
Definition
DDR RAM runs faster then Error Correction Code RAM because ECC uses a 9th bit when most RAM for a PC is only 8 bit. ECC should be used on servers because of the error correction.
Term
dxdiag.exe
Definition
"DirectX Diagnostics" report detailed info about the “directX” components and drivers installed on PC
(DirectX video- or sound-related hardware problems / DirectX is for multimedia, especially game programming and video, on Microsoft platforms)
Term
Device Manager
Definition
view each device's working condition in your PC
(to view the status of a device or diagnose a problem / keeps a listing of all the hardware devices on your computer)
you find the divice manager through the Control Pannel
Term
Docking Station
Definition
provide additional ports and power connection for laptop
Term
computer's date and time keeps changing, what is the possible problem?
Definition
replace battery on motherboard if date and time can not be recorded, CMOS battery could be bad.
Term
Defragment of hard drive, when should you do this and what does it do?
Definition
if computer is running slow while reading a very large data file, such as a graphic data file, the bits of the file could not be all together so defraging would rearrange the data on the file so they are together and can work more efficiently
Term
Use ESD Strap, what else can you do in place of the ESD Strap
Definition
touch the case/power supply, or anti-static mat
Compita states you should use the ESD
Term
run Event Viewer, where and why?
Definition
to view logged error code and other system information
right click computer and click manage or type msconfig in cmd
Term
https, ssh; what are the ports and what do thy do?
Definition
encrypt data travel on network
HTTP = 443 (secure socket layer-making purchases online)
SSH = 22 (secure schell)
Term
Excessive heat; what will it do?
Definition
will affect computer's performance
Term
Firewall may be used to
Definition
block all incoming connections from Internet
(possible threathes to your comuter)
Term
Fn Key on Laptop; what do they do?
Definition
adjust screen brightness, sound, WiFi, additional monitor, Sleep Mode
Term
OOBE ( out-of-box-experience )
Definition
recovery partition on hard drive configured by computer manufacturer
Term
Fuser
Definition
used in laser printer, last stage of printing in a laser printer
Step 6: The toner is then melted into the paper.
Term
update firmware
Definition
update BIOS, or update software burned on ROM chip
Firmware refers to read-only memory (ROM) chips that store permanent instructions. Firmware boots up computerized or digital devices, as ROM chips are non-volatile, meaning they do not require a power source to hold their contents.

Firmware update is a software program that can be used to flash update the firmware in those devices. For example, a user could download a firmware update for their disc drive or network router to update it's capabilities or fix an issue with that device. Firmware updates are made available through the hardware manufacturer
Term
fiber optical cable use what kind of connectors ?
Definition
SC?
Term
CPU hyperthreding
Definition
allow CPU to process 2 different software at same time
Term
HUB
Definition
always broadcast data to all ports or all devices connected to hub
Term
Switch
Definition
only send data to destination port
Term
HDMI cable
Definition
allow both high-quality video and audio travel on the same cable
Term
“harden” the computer
Definition
configure computer to prevent virus or inappropriate usages
Term
SSID
Definition
a 32-character alphanumeric key (password) uniquely identifying a wireless LAN. Its purpose is stop other wireless equipment accessing your LAN — whether accidentally or intentionally.
Wireless devices must be configured with the same SSID
Term
msconfig.exe
Definition
System configuration utility accessed in CMD:
start up files, tools list for opening many troubleshooting tools nclulding event viewer, system informaiton, computer manager, and many other files.
Will probley use this for easier access to troubleshooting tools.
Term
sfc /scannow
Definition
scans system files or insure files have not been changed. Will automatily fix errors.
Term
Cmd as administrator
Definition
Common prompt
Start/All Programs/Accessories/ (right click) Command Prompt / Run a administrator
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