A+ 1101

RAM

Remote Access Memory

SODIMMs

Small Outline Duel In-line Memory Modules
also known as Laptop Memory

SSD

Solid State Drive

HDD

Hard Disk Drive

LCD

Liquid Crystal Display

Wireless Card

allows for wireless connections

NFC

Near-Field Communication

IPS

In-Plane Switching
rotating crystals to render image

TN

Twisted Nematic
crystals twist and untwist to create image
earliest type of TFT

VA

Vertical Alignment
crystals tilt instead of rotating or tilting

LED Backlit Displays

LCD screen with light provided with LED's around the screen

LED

Light-Emitting Diode

OLED

Organic Light-Emitting Diode

TFT

Thin-Film Transistor

POP3

Post Office Protocol ver 3
Uses Port 110
local email client to connect to mail server

FTP

File Transfer Protocol
uses Port 20 for data transfer
uses Port 21 for control

HTTPS

Hypertext Transfer Protocol Secure
Uses Port 443

SMTP

Simple Mail Transfer Protocol
Uses Port 25

SSL

Secure Sockets Layer

TLS

Transport Layer Security

Access Point

Central connection for devices on an infrastructure wireless LAN

Hub

Ethernet connection device on which all traffic into the device goes out on all ports
has 4 to 48 ports

Firewall

Device that is used to filter traffic into and out of a network and that is based on characteristics such as port use

Switch

Ethernet connection device that processes and delivers traffic based on network adapter MAC address

Patch Panel

Connection point for incoming and out going cables with connections that are rearranged by physically moving cables

SDN

Software-Defined Networking
using SDN network devices can be provisioned and configured using automated pre-programmed process

SAN

Storage Area Network
is a dedicated network that provides access to consolidated, block level storage devices

PRL

Preferred Roaming list

PRI

Product Release Instruction

IMSI

International Mobile Subscriber Identity

IMEI

International Mobile Equipment Identity

PoE

Power over Ethernet
sends power over an ethernet line.
up to 13 watts of DC power
governed by 802.3af standard

PoE+

Power over Ethernet+
sends power over an ethernet line.
up to 25 watts of DC power
governed by 802.3at standard

PoE++(Type 3)

Power over Ethernet++(Type 3)
sends power over an ethernet line.
up to 51 watts of DC power
governed by 802.3bt standard

PoE++(Type 4)

Power over Ethernet++(Type 4)
sends power over an ethernet line.
up to 73 watts of DC power
governed by 802.3bt standard

DLP

Digital Light Processing

Lumens

total amount of visible light that is given off

Artifacts

Poss Causes: overclocked GPU, Overheated GPU, low res
Poss Sol: check for loose or damaged cables of connectors. check for correct signal type

Throughout

how much data can be transferred through a network medium

Duel Rails

the +12V that provides dedicated power to devices such as video card

Pienum

ethernet networking electrical cable that is jacketed with certain fire-retardant materials and coatings

Dead Pixels

damaged areas of a display that remain off because they are no longer receiving any power

Burn-in

damage to a computer or television screen, cause by being left on too long

PAN

Personal Area Network

Port Replicator

Provides a full set of ports for devices

Docking Station

may support add-in cards or drives.
allows a portable computer to function like a desktop

SIM

Subscriber Identity Module

GSM

Global System for Mobile communication
uses removable SIM
allows for subscribers to use phone network provider

CDMA

Code-Division Multiple Access
No SIM card
phone is directly managed by provider

MDM

Mobile Device Management
Sets device policies

MAM

Mobile Application Management
Sets policies for apps

FQDN

Fully Qualified Domain Name

Protocol

Rule for computer processes

TCP

Transmission Control Protocol
connection-oriented protocol

UDP

User Datagram Protocol
connectionless, non-guaranteed method of communication

Port

a number assigned to an entryway in a firewall

SSH

Secure Shell
applies security to transfer
Port 22
uses TCP

Telnet

used to configure other equipment remotely
Port 23
Uses TCP

HTTP

Port 80
uses TCP

NetBIOS

under UDP and TCP
port 137/139

IMAP

Internet Mail Access Protocol
Port 143
uses TCP

DNS

Domain Name System
Port 53
uses both TCP and UDP

DHCP Server

Dynamic Host Configuration Protocol
Port 67
used UDP

DHCP Client

Port 68
uses UDP

SNMP

Simple Network Management Protocol
Port 161
uses UDP

SNMP trap operation

Port 162
uses UDP

LDAP

Lightweight Directory Access Protocol
Port 389
uses TCP

HTTPS

HTTP Secure
Port 443

SMB

Server Message Block
Port 445
Uses TCP

RDP

Remote Desktop Protocol
Port 3389
Uses TCP

Router

gateway for internet traffic

SOHO

Small Office Home Office
home internet

LAN router

used for corporate networks
divided a single network into multiple subnetworks

WAN router

used for corp network
forwards traffic to and from the internet over a private WAN link.

Switches

forward frames using MAC address
filters connections inside network

MAC Address

Media Access Control
address physically burned into network cards in every computer

Modular Switch

provides a power supply and fast communications
allows for hundreds of access ports

Unmanaged Switch

function without configuration
usually 4 to 8 ports
embedded in most SOHO setups

Managed Switch

can be configured over a management port
24 to 48 access points

Wi-Fi Access Points

uses radio waves as transmission media
allows for connection of wireless and mobile devices

Patch Panel

cables run from a wall plate to punch down block on the patch panel
simplifies multiple connections to the switch

Firewall

controls which computers are allowed to connect to the network and which types of traffic are allowed

Injector

used to supply power to PoE device when the switch does not support PoE

Cable Modems

hybrid fiber coax
-combines fiber optic core with copper coaxial cable links
referred to as broadband or cable

DSL

Digital Subscriber Line
phone lines transmitting internet data

Optical Network Terminal

an element in a fiber to the premises (FTTP) internet connection

NIC

Network Interface Cards
uses a transceiver port to connect to the data cabling

2.4 GHz

Longer signal range
better at penetrating solid surfaces
supports limited number of channels
can become congested

5 GHz

shorter signal range
less effective at penetrating
supports more channels
less congestion
supports higher data rates at shorter distances

RTFM

Read The "F"ing Manual

Long-range Fixed Wireless

point to point antennas that connect wireless without wires up to 30 miles apart

RFID

Radio Frequency Identification

NFC

Near-Field Communication

DNS Hierarchy

13 root servers farms
Top-level domains
-Generic- .com, .org, ,net, .info, .biz
-Sponsered- .gov, .edu
-Country code- .uk, .ca, .de

DORA

DHCP protocol acronym
Discovery Offer Respond Acknowledge

Fileshares

allows clients to access files that are shared on the server network

Syslog

System Logs
logs network activity

AAA server

Authentication, Authorization, and Accounting server

Suplicant

End User or End User Device

Legacy Systems

Systems that are no longer directly supported by its vendors