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

Embedded Systems

electronic devices that are designed to perform a specific, dedicated function

SCADA

Supervisory Control And Data Acquisition Takes place of a control server in large-scale, multiple-site ICs

IoT

Internet of Things global network of wearable technologies, home appliances, home control systems, vehicles and other items equipped with software and network connectivity

APIPA

Automatic Private IP Address fe80 for IPv6 169.254 for IPv4

TCP/IP

Transmission Control Protocol/ Internet Protocol 4 Layers: Application Transport Internet Link/ Network Interface

DKIM

Domain Keys Identified Mail uses cryptography to validate the source server for a given email address

SPF

Sender Policy Framework keeps track of spam message senders

LAN

Local Area Network

WLAN

Wireless Local Area Network

PAN

Personal Area Network

MAN

Metropolitan Area Network

SAN

Storage Area Network

UTM

Unified Threat Management security device that provides a broad range of security services to a network

STP

Shielded Twisted Pair twisted cables that use foil or mesh to reduce noise and cross-talk uses an electrical ground

UTP

Unshielded Twisted Pair Signal attenuaton maxes at 100M

EMI

Electromagnetic Interference

NVMe

Non-Volatile Memory express

PCIe

Peripheral Component Interconnect express

RAID

Redundant Array of Independent Disks

ECC Ram

Error Correction Code Ram keeps track of corrupted data and errors on Ram

Platen Gap

space between printer head and paper

SLA

Stereolithography liquid plastic resin

SLS

Selective Laser Sintering uses a pulse laser to fuse layers

Paas

Platform as a Service

IaaS

Infrastructure as a Service

SaaS

Software as a Service

VoIP

Voice over Internet Protocol