Introduction to Network Topologies Flashcards
What is a problem with LANs?
You must be physically connected, can’t be used remotely.
What is the common solution for connection two separate LANs?
Using a router; a cable would be too cumbersome and would create one big workgroup.
What is a workstation?
End user computers, often with more than one CPU.
What is the difference between a workstation and a client?
Workstations are more powerful.
Workstation has it’s resources available to other users on the network, client machines can ask for resources.
What is a server?
Servers are powerful computers that run specialized network operating systems to maintain and control the network.
What is a host?
A host is any network device with an IP address.
What is the difference between a host and a client?
A client is a device that cannot share resources, it only requests it from a server. A host is a device connected to the network that communicates with other hosts.
LAN vs WAN
WAN usually needs a router port or ports,
WAN spans a larger area,
WANs usually slower.
Distributed vs Centralized WAN Examples
Distributed WAN example is the internet, made up of interconnected computers spread out.
Centralized WAN contains a main computer that remote computers connect to.
Personal Area Network
Often used to connect printers, projectors or co workers computers via bluetooth.
Campus Area Network (CAN)
In between a LAN and a WAN in scope.
Storage Area Network (SAN)
Usually only found in data centers and are specifically for storing data.
Software Defined WAN
Virtual WAN using software to manage all functions. Integral part of transport architectures like MPLS and LTE.
MPLS
Multiprotocol Label Switching is a switching mechanism that imposes labels to data and uses the labels to forward data when it arrives at the network. Key advantages include:
- physical layout flexibility
- Prioritizing of data
- Redundancy
- One to many connection
mGRE
Multipoint Generic Routing Encapsulation refers to carrier or service provider that dynamically creates and terminates connections to nodes on a network.
- Used extensively in Dynamic Multipoint VPN deployments.
- encapsulates user data, creates VPN connection, tears down connection when complete.
