2.0 Networking- Sections 10, 11 Flashcards
What is a NIC?
Network Interface Card(NIC). Provides an ethernet connection to the network.
What is a Hub?
A hub is an older piece of networking technology that connects multiple ethernet devices together and making them act as a single network segment.
What is a Switch?
Networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device. Switches are smart hubs that remember the ports that are connected to them.
Types of Switches?
Unmanaged Switch and Managed Switch.
What is a Unmanaged Switch?
An unmanaged switch performs its function without requiring a configuration.
What is a Managed Switch?
A managed switch performs its functions with configuration.
What is a Wireless Access Point?
A device that allows wireless devices to connect to a wired network.
What is a Router?
Used to connect different networks together.
What is a Firewall?
Scans and blocks traffic that enters or leaves a network.
What is a UTM?
Unified Threat Management(UTM). Contains firewall features
What is Patch Panel?
A mounted hardware device that allows cable network jacks from a wall into a central area.
What is PoE?
Power Over Ethernet(PoE). Supplies electrical power from a switch port over an ordinary data cable to a power device.
What are the three levels/types of PoE?
802.3af, 802.3at(PoE+), 802.3bt(PoE++).
What is 802.3at?
Also known as PoE+. A level of PoE that allows power to devices to draw up 25W.
What is 802.3bt?
Also known as PoE++. A level of PoE used to supply power of up to 51W (type 3) or 73W(type 4 ).
What are the three things to remember about PoE?
Use a switch that supports PoE. Use proper cabling in place for support (Cat 6 or above). Power device to use the data and power coming from the ethernet cable.
What is a Cable Modem?
A device that translates coaxial cable signals into radio frequency waves. Hybrid fiber-coaxial(HFC), Data-Over-Cable Service Interface(DOCSIS) Think Cable Modem.
What is a DSL modem?
A Digital Subscriber Line(DSL) modem. A device that translates coacial cable signals into phone lines.
What is a SDN?
Software Define Networking(SDN). Way of virtualizing the network hardware.
What is a PAN?
Personal Area Network(PAN). Smallest type of wired or wireless network and covers the least amount of area, usually 3 to 10 feet. Examples: Bluetooth, USB.
What is a LAN?
Local Area Network(LAN). Connects componenets within a limited distance, usually up to a few hundred feet. Room or building.
Examples: Home WiFi, Office Network.
What is a CAN?
Campus Area Network(CAN). Connects LANs that are building centric across a university, industrial park or business park. Usually up to few miles and across multiple buildings.
Examples: A college Campus
What is a WAN?
Wide Area Network(WAN). Connects geographically disparate internal networks and consists of leased lines of VPNS the largest type of network. Usually a worldwide coverage. Country or Worldwide.
Examples: the internet itself. And is the largest WAN available.
What is a WLAN?
Wireless Local Area Network(WLAN). A wireless distribution method for two or more devices that creates a local area network using wireless frequencies.
What is a SAN?
Storage Area Network(SAN). Provisions access to configurable pools of storage devices that can be used by applications servers. SAN will use technologies such as Internet SCSI(ISCSI), Fiber Channel(FC).
what is SoHo and what does it use?
Small Office, Home Office(SoHo) LAN. Uses a centralized server or simply provides clients access to local devices like printers, file storage, or the internet.
What is IoT?
Internet of Things(IoT). A global network of appliances and personal devices that have been equipped with sensors, software, and network connectivity to report state and configuration. Examples: Smart Lightbulbs, Smart Thermostats.
What are the categories and components of IoT?
Hub and control systems, Sensors, Smart devices, Wearables.
The two types of Twisted Pair Cabling
(UTP)Unshielded twisted pair, (STP)Shielded twisted pair.
Unshielded Twisted Pair
UTP doesn’t use any metal in the shielding and therefore UTP is cheaper.