Network Devices & Terms Flashcards
End-user “host” or “client” devices
Workstation
Dumb Layer 1 Device used for wired network access with high collisions
Hub
Smart Layer 2 Device used for wired network access with few or no collisions
Switch
Layer 3 device that separates networks apart or connects networks together
Router
Passive Monitoring System
IDS
Middle man server that makes a request on behalf of clients
Proxy Server
Security device used to filter network traffic
Firewall
Device used to broadcast and connect devices wirelessly
AP/WAP
Active Monitoring System
IPS
Gives the device and ethernet port, usually built in.
Network Interface Card (NIC)
Interference that can degrade wireless and cable signals
Electro-Magnetic Interference (EMI)
Border Network that allows public access to some resources.
Perimeter Network (DMZ)
Private Internal Network
Intranet
Business to Business Network
Extranet
In-between network used to link other networks together
Internet
consists of a series of computers linked together to form a network in a circumscribed location.
Local Area Network (LAN)
a large computer network that connects groups of computers over large distances
Wide Area Network (WAN)
Specific type of Local Area Network used for less than 10 computers
SOHO
Small Network consisting of Wi-Fi, Bluetooth connectivity
Personal Area Network (PAN)
Protocols used for secure web traffic and lightweight VPN connections
Secure Socket Layer (SSL) / Transport Layer Security (TLS)
Configuration Settings on a Switch that creates network segmentation
Virtual Local Area Network (VLAN)
Secure Tunnel Connection Used over public networks for remote access
Virtual Private Network (VPN)
Light weight Client Service VPN (i.e. Web-browser based)
SSL VPN
IPSec encrypted Host-Network VPN (Host Device Based)
L2TP/IPSec VPN
Layer 2 Address associated with the Network Interface Card
MAC Address
Reduces collisions in a wireless transmission
CSMA: CA (Collision Avoidance)
Reduces Collisions in a wired transmission
CSMA: CD (Collision Detection)
One way communication method with collision potential
Half-Duplex
Two-Way Simultaneous communication with no collision potential
Full-Duplex
Used to give bandwidth priority to services through different mechanisms or technology
Quality of Service (QoS)
Used in IPSec for encryption
Internet Exchange Key (IKE)
One way communication in fiber cabling often used for longer distances
Single Mode Fiber
Two-Way Communication in Fiber Cabling
Multi Mode Fiber
