CH10- WAN and Cloud Computing Flashcards
A high speed packet-switching technology that uses connection oriented switches
ATM (Asynchronous transfer mode)
Continuous sine wave
Analog signal
An ISDN that consists of 2 64 kbps B-channels and one 16 kbps D-channel used for remote connections
BRI (Basic rate interface)
Creates a digital signal between a LAN and the service provider
CSU/DSU (Channel/data service unit
Temporary dedicated connection between sender and receiver on demand
Circuit switched WAN
Networking model where data is managed by servers paying for the service by what is used
Cloud computing
Guaranteed minimum transmission rate
CIR (Committed info rate)
Equipment the customer is responsible for
CPE (Customer premise equipment)
Device that sends data to/from the last mile. Usually the csu/dsu or modem
DCE (Data circuit-terminating equipment)
Passes data from the customer LAN to the DCE, usually a router.
DTE (Data terminal equipment)
Location in the cable plant where the WAN connection is made and third party’s equipment and responsibility begins.
Demarcation point
Windows software component, setting up an RRAS server or connecting ISP’s for dial up internet
DUN (Dial up network)
A binary square wave signal
Digital signal
Describes a T-carrier line where portions are dedicated for different purposes
Fractionalized
PVC packet switching tech for WAN communication where error checking is done on end point devices for improved speed
Frame relay
Cloud computing where a company can use a providers storage or virtual service
IaaS (infrastructure as a service)
“hosted infrastructure”
Digital WAN tech to replace phones that defines communication channels of 64 kbps and used by SOHO users (Small office/home office)
ISDN (Integrated services digital network)
Connection between a WAN’s demarcation point and the central office of the provider - the “last mile”
Local loop
Device that converts digital to analog and back for transmission over phone lines
Modem
Simultaneous communication links over the same cable
Multiplexing
Data is transmitted in frames or packets where each packet is transmitted independently through the service providers network
Packet-switched
Pathways between points that are permanent logical connections and exist even when not in use
Permanent virtual connection
Host platform: cloud computing where the customer develops applications using the providers infrastructure. Delivered to the customer from the provider’s servers
PaaS (Platform as a service)
Remote access protocol that supports many other many other protocols.
And, is used to carry data over variety of connections
PPP (Point to point protocol)
An ISDN that consists of 23 64 kbps B-channels and one 64 kbps D-channel
Primary Rate Interface
Private is delivered to own employees. Public is delivered by third party
Private/Public cloud
Connector for terminating a T1 line with diagnostic testing features for trouble shooting
Smart jack -
Hosted applications: Cloud computing where customers pay to use applications on the providers network
SaaS (Software as a service) - “Hosted Applications”
A communication circuit that opens when needed and terminated when done.
SVC (Switched virtual circuits)
Fault-tolerant tech that can carry different capacity signal fiber-optics.
Defines carrier levels for incrementally increasing data rates over varieties of physical topologies
SONET (Synchronous Optical Network)
Communication lines with separate trans and receive lines using TDM signaling method making it possible to make channels for particular purposes
T-carrier lines
TDM signaling method that that allocates time slots per channel transmitting multiple channels “streams” on one medium
TDM (Time division multiplexing)
A logical connection created between two devices in a shared network with allocated bandwidth for a specific transmission path
Virtual circuit
A packet switching tech that can run on old copper lines and runs on SVC networks
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