1.6 Compare and Contrast network topologies, architectures, and types. Flashcards
What is a BUS topology?
its physical layout is usually a star; it has one node that transmits while all other receive (broadcast); only a single node can transmit at a time; cable failure breaks the entire network.
What is a RING topology?
One node transmits, all receive (broadcast); each node transmits in return; failure in a node affects the entire network (token can get stuck because it cannot get passed along).
What is a STAR (hub and spoke) topology?
most current network topology in use today; failure in one node doesn’t affect the others; failure of the central device will affect the others; requires more cabling than its predecessors.
What is a HYBIRD topology?
Uses a combination of physical and logical topologies to take advantage of all the benefits combined.
What is a MESH topology?
each device is connected to every other device; can typically be the most expensive solution; has limited scalability; but very fault tolerant.
What is a Peer-to-Peer network type?
this is when any system can act as a client, server, or both; makes sharing easier, administration more difficult, but is also more cost-effective and easier to deploy.
What is a Client/Server network type?
Central, dedicated server where the client talks to the server, not to other clients; powerful performance, high level of security, can be expensive, complex and has no resource sharing.
What is a Local Area Network (LAN)?
Can include primary offices, remote offices, or individual remote workers (300-foot radius)
What is a Wide Area Network (WAN)?
Are typically connected using specific technology protocols (ATM, Frame Relay) that are better suited to long-haul communication that local area technology cannot.
What is a frame relay?
it is a Layer 2 protocol for data transmission that uses either Permanent Virtual Circuit (PVC) or Switched Virtual Circuit (SVC) - PVC is most common implemented in enterprise networks since all data frames follow the same path; does not have authentication or encryption.
What is Asynchronous Transfer Mode (ATM)?
Layer 2 protocol designed to replace Frame Relay; uses ATM End Station Addressing (ASEA) system; has not authentication or encryption.
What is a Metropolitan Area Network (MAN)?
It connects multiple LANs across a larger area but is smaller than a WAN (30 mile radius).
What is a Personal Area Network (PAN)?
It connects devices within a user’s immediate area; typically concerned with the exchange of information in this short space (33-foot radius).
