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A+ Cert
Computer Networking and Computer Science
181
Computer Networking
Undergraduate 1
06/06/2011

Additional Computer Networking Flashcards

 


 

Cards

Term
480 Mbps
Definition
Maximum data speed of high-speed USB 2.0
Term
IEEE 1394
Definition
IEEE standard defines the FireWire technology
Term
400 Mbps
Definition
Maximum data rate supported by the IEEE 1394a standard
Term
Cools the processor
Definition
Purpose of a heat sink installed on a processor
Term
Preventive maintenance
Definition
A regular systematic inspection, cleaning, and replacement of worn parts, materials and systems.
Term
Troubleshooting
Definition
A systematic approach to locating the cause of a fault in a computer system
Term
6 steps of troubleshooting:
Definition

1. Identify the problem

2. Establish a theory of probable causes,

3. Test the theory to determine an exact cause,

4. Implement the solution,

5. Verify full system functionality, if applicable, implement preventive measures

6. Document findings, actions, and outcomes

Term
What is a data backup?
Definition
A copy of the data on a computer hard drive that is saved to media
Term
 When should you use a liability release form?
Definition
If the customer does not have a backup and you are unable to create one, you should have the customer sign a Liability Release Form.
Term
Event viewer
Definition
Updated information about errors
Term
Device manager
Definition
Displays all devices that are configured on a computer
Term
BIOS
Definition
basic input/ output system
Term
POST
Definition

(power on self test)

Comes on when computer is turned on

Term
A newly installed hard drive isn't working. Where would you look first?
Definition
BIOS
Term
Form factor
Definition
The size and shape of a Motherboard
Term

 

Power supply installation steps

Definition

1 Insert the power supply into the case

2 Align the holes in the power supply with the holes in the case

3 Secure the power supply to the case using the proper screws

Term
What does a locking assembly do?
Definition
Secures CPU to socket on the motherboard
Term
Thermal compound
Definition
Conducts heat away from the CPU
Term
Isopyopyl alcohol
Definition
Used to clean a CPU
Term
Heat sink
Definition
Draws heat away from the CPU
Term
What does the fan do?
Definition
Moves the heat away from the heat sink
Term
RAM
Definition

(Random access memory)

provides temorary data storage for the CPU while the computer is operating

Term
What happens to volatile memory?
Definition
The contents are lost when the computer is shut down
Term
What are plastic and metal standoffs used for?
Definition
Used to mount the motherboard and prevent it from touching the metal portions of the case
Term
Number of steps for installing a motherboard?
Definition
Five
Term
HDD
Definition
(hard disk drive)
Term
Examples of external bays
Definition
Optical and floppy disk drives (FDD)
Term
Molex power connector
Definition
provides the optical drive with power from the power supply
Term

PATA cable connectors

(parallel advanced technology attachment)

Definition
Uses three 40-pin connectors to connect to the motherboard from a drive
Term
Drives that use 3.5-inch bays
Definition
Floppy and hard disk
Term
NIC (network interface card)
Definition
enables a computer to connect to a network
Term
NIC use 2 interfaces. What are they?
Definition
PCI and PCIe
Term

ATX connector

(advanced technology extended)

Definition
20 or 24 pins
Term

SATA power connector

(serial advanced technology attachment)

Definition
uses 15 pins to connect to devices that have SATA power sockets
Term
SATA data cable connector?
Definition
7 pin connector
Term
examples of external output devices
Definition
monitor, speakers, printer
Term
Optical drive
Definition
A storage device that reads and writes information to CDs and DVDs
Term
Video adapter card
Definition
The interface between a computer and a display monitor
Term
Slots the video adapter cards use
Definition
PCI, AGP, and PCIe
Term
Types of data cables
Definition
SATA, PATA, USB, FireWire
Term
What uses a PS/2 cable?
Definition
Mouse and keyboard
Term
What does an Operating System do?
Definition
Control hardware access, manage files and folders, provide user interface, and manage applications
Term
What is a device driver?
Definition
Small program written by the hardware manufacturer and supplied with the hardware component
Term
Plug and Play (PnP)
Definition
The process of assigning system resources and installing drivers can be performed
Term
The registry contains information about:
Definition

Applications

Users

Hardware

Network settings

File types

Term
How do you control hardware access?
Definition
To access and communicate with the hardware, the operating system installs a device driver for each hardware component
Term
Describe file and folder management
Definition
The operating system creates a file structure on the hard disk drive to allow data to be stored
Term
2 types of user interface
Definition
CLI and GUI
Term
Describe how the Command Line Interface (CLI) works
Definition
The user types commands at a prompt
Term
Describe how the Graphical User Interface (GUI) works
Definition
the user interacts with menus and icons
Term
Application Programming Interface (API)
Definition
a set of guidelines used by programmers to ensure that the application they are developing is compatiable with an operating system
Term
ex of API
Definition
OpenGL and DirectX
Term
Open Graphics Library (OpenGL)
Definition
cross-platform standard specification for multimedia graphics
Term
DirectX
Definition
collection of APIs related to multimedia tasks for Microsoft Windows
Term
multi-user
Definition
two or more users can work with programs and share peripheral devices at the same time
Term
multi-tasking
Definition
the computer is capable of operating multiple applications at the same time
Term
multi-processing
Definition
the computer can have two or more CPUs that programs share
Term
multi-threading
Definition
a program can be broken into smaller parts that can be loaded as needed by the operating system
Term
mode of operation
Definition
to the capability of the CPU and the operating environment
Term
4 types of modes of operation
Definition
real mode, protected mode, virtual real mode, and compatible mode
Term
REAL MODE
Definition
 only execute one program at a time, and it can only address 1 MB of system memory
Term
protected mode
Definition
access to all of the memory in the computer and manage multiple programs simultaneously
Term
virtual memory
Definition
hard disk space that is used to emulate RAM
Term
operating systems that use 32 bit
Definition
Windows XP and Windows 2000
Term
virtual real mode
Definition
allows a real-mode application to run within a protected-mode operating system
Term
compatible mode
Definition
creates the environment of an earlier operating system for applications that are not compatible with the current operating system
Term
2 common architectures used by CPUs to process data
Definition
x86 (32 bit architecture) and x64 (64 architecture)
Term
2 types of OS
Definition
desktop and network
Term
3 groups of desktop OS
Definition
Apple MAC OS, Microsoft Windows, and Unix/Linux
Term
common network OS
Definition
Microsoft windows, Novell NetWare, Linux, and Unix
Term
Hardware Compatibility List (HCL)
Definition
lists provide a detailed inventory of hardware that has been tested and is known to work with the operating system
Term
Windows XP Professional
Definition
used on most computers that will connect to a Windows Server on a network
Term
Windows XP Home Edition
Definition
used on home computers and has very limited security
Term
Windows XP Media Center
Definition
used on entertainment computers for viewing movies and listening to music
Term
Windows XP Tablet PC Edition
Definition
used for tablet PCs
Term
Windows XP 64-bit Edition
Definition
used for computers with 64-bit processors
Term
Windows 2000 Professional
Definition
older Windows operating system that has been replaced by Windows XP Professional
Term
Windows Vista Home Basic
Definition
used on home computers for basic computing
Term
Windows Vista Home Premium
Definition
used on home computers to expand personal productivity and digital entertainment beyond the basics
Term
Windows Vista Business
Definition
used on small business computers for enhanced security and enhanced mobility technology
Term
Windows Vista Ultimate
Definition
used on computers to combine all the needs of both home and business users
Term
C:\WINNT
Definition
Windows 2000 operating system path
Term
 operating system setup
Definition
the installation and initial booting of the operating system
Term
primary partition
Definition
cannot be subdivided into smaller sections
Term
active partition
Definition
the partition used by the operating system to boot the computer
Term
extended partition
Definition
normally uses the remaining free space on a hard drive or takes the place of a primary partition
Term
[image]
Definition
power supply
Term
[image]
Definition
heat sink cooling fan
Term
[image]
Definition
molex power plug
Term
[image]
Definition
thermal compound
Term
[image]
Definition
motherboard
Term
[image]
Definition
SATA data cable
Term
[image]
Definition
SATA power cable
Term
[image]
Definition
floppy disk drive
Term
[image]
Definition
optical drive
Term
[image]
Definition
Molex power connector
Term
[image]
Definition
hard disk drive
Term
[image]
Definition
Network interface card
Term
[image]
Definition
video adapter card
Term
[image]
Definition
PATA data cable
Term
[image]
Definition
RJ-11
Term
[image]
Definition
RJ- 45
Term
[image]
Definition
PS/2 connector
Term
md
Definition
make directory- creates new folder
Term
[image]
Definition
USB connector
Term
[image]
Definition
USB port
Term
[image]
Definition
audio ports
Term
what can be updated to reduce the risk of new exploits
Definition
Virus definitions
Term
[image]
Definition
CPU
Term
[image]
Definition
CPU socket
Term
long beep after installing RAM?
Definition
defective RAM or icorrectly installed
Term
[image]
Definition
power cable
Term
[image]
Definition
monitor cable (DVI)
Term
[image]
Definition
printer port
Term
[image]
Definition
computer assembly
Term
minimum number of disks need for raid 5?
Definition
3
Term
what is used to configure a pc to run at 100%?
Definition
BIOS
Term
SETUPmgr
Definition
helps prepare answer files
Term
what does ipconfig/all show?
Definition
dns, ip address, mac address, default gateway
Term
Mini PCIe
Definition
laptops
Term
HKEY_CLASSES_ROOT
Definition
info about file extensions map to particular app
Term
HKEY_CURRENT_USER
Definition
info such as desktop settings; history related to current user
Term
HKEY_USERS
Definition
info about users who have logged onto the system
Term
HKEY_LOCAL_MACHINE
Definition
info relating to hardware & software
Term
HKEY_CRRENT_CONFIG
Definition
info reltaing to all active devices on a system
Term
Path to change settings in boot.ini
Definition
right click MY COMPUTER>PROPERTIES>ADVANCED TAB in start up & recovery area select SETTINGS>OK>EDIT
Term
Displays or manages remote connections?
Definition
net use
Term
IP address used to test functionality of a NIC
Definition
127.0.0.7
Term
in a 64-bit OS where are the program files for 32-bit programs located?
Definition
C:\PROGRAM FILES(x86)
Term
copy /a
Definition
ASC II text file
Term
copy /v
Definition
verify that the new files were written correctly
Term
copy /y
Definition
surpress confirmation prompt (windows 2000 only)
Term
TTL calculation
Definition
effectively a count of the maximum number of lines to the destination host
Term
port 22
Definition
SSH
Term
SSH
Definition
used to securely connect to a remote network device
Term
port 20/21
Definition
FTP
Term
FTP
Definition
provides services for file transfer and manipulation
Term
Safe Mode with Networking
Definition
Starts windows identically to safe mode and also loads the drivers for network components
Term
Safe Mode
Definition
starts windows but only loads drivers for base components i.e. keyboard and display
Term
Command used to trace a network
Definition
TraceRT
Term
NETBEUI
Definition
non routable protocol
Term
ntdetect.com
Definition
creates dynamic hardware configuration in the registry
Term
ping
Definition
used to test connections between computers
Term
regedit
Definition
allows users to edit registry
Term
dxdiag
Definition
shows details about all of the DirectX components and drivers that are installed in your computer (ensures Direct X is installed correctly)
Term
What is the highest level of security for PC's running Vista Enterprise or Ultimate?
Definition
bit locker drive encryption
Term
How do you show file extensions?
Definition
my computer>tools>folder options>view>uncheck hide file extensions
Term
msinfo32
Definition
displays a comprehensive view of your hardware, system components, and software environment
Term
sysprep
Definition
prepares computer for imaging
Term
Hard Disk Drives shows "unreadable"
Definition
hardware failure, corruption of I/O errors
Term
Which group should a user be added to in order to restore files without granting ownership privileges?
Definition
back up operators
Term
What is the purpose of HKEY's
Definition
reads registry files, chooses a hardware profile and loads the device driver
Term
ipconfig/flushdns
Definition
purge dns revolver cache
Term
Where are the 64-bit programs located in a 64-bit OS?
Definition
C:\PROGRAM FILES
Term
ipconfig /release
Definition
releases the current DCHP address
Term
What would be used to secure a companies wireless network?
Definition
Firewall
Term
TRUE/FALSE CAT5 cable (1-1, 2-2) is a straight patch cable
Definition
TRUE
Term
Which protocol runs commands on a remote PC?
Definition
TELNET
Term
Port 80
Definition
HTTP
Term
HTTP
Definition
request/response connection to the internet
Term
Port 110
Definition
POP3
Term
POP3
Definition
download e-mail messages from e-mail server
Term
port 143
Definition
IMAP
Term
port 443
Definition
HTTPS
Term
HTTPS
Definition
uses authentication and encryption to secure data as it travels between client and web server
Term
APIPA
Definition
non routable IP address
Term
Which windows partition is refered to as the c:\ drive?
Definition
first primary partition
Term
What two characteristics are determined by the chipset on the motherboard?
Definition
pin type and memory type
Term
sfc /scannow
Definition
scans the drive immediately
Term
TELNET
Definition
Remote access application used to provide remote terminal access between host links
Term
In Vista, where are the users information stored?
Definition
c:\users
Term
Name 5 non routable IP addresses
Definition
1) 10.0.0.0 2) 127.0.0.1 3) 169.254.0.0 4) 172.16.0.0 5) 192.168.0.0
Term
DoS
Definition
Sends abnormally large amounts of requests to a system preventing access to services
Term
DDoS
Definition
Uses "zombies" to make tracing the origin of the DoS attack difficult to locate
Term
spoofing
Definition
gains access to resources on devices by pretending to be a trusted computer
Term
man-in-the-middle
Definition
intercepts or inserts false information in traffic between two hosts
Term
Replay
Definition
uses network sniffer to extract usernames and passwords to be used at a later date to gain access
Term
DNS poisoning
Definition
changes the dns records on a system to point to false servers where the data is recorded.
Term
Safe Mode with Command Prompt
Definition
starts windows and loads the command prompt instead of the gui
Term
How many logical drives are on a single NTFS?
Definition
4
Term
What should a Liability release form contain?
Definition

#1- *Customers signature *

-Permission to work on computer without a backup.

-Release from liability in case data is lost.

-Description of work to be performed.

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