Term
Asynchronous Transfer Mode (ATM) |
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Definition
____ is a cell-switching network technology that supports high-speed transfer of voice, video, and data in LANs, WANs, and telephone networks. The networks are made up of switches, which transport data cells among networks. |
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Term
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Definition
| Information is transferred in fixed-size packets, called ___, each consisting of 53 bytes |
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Term
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Definition
| An ATM switch makes virtual connections with other switches to provide a data path from endpoint to endpoint. Individual connections are called _____. |
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Term
Virtual Channel Identifier (VCI) |
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Definition
| VCs support the connection-oriented transport between endpoints and are identified by a ____ . |
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Term
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Definition
| VCs with a common path are tied together into ____ . |
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Term
User-to-Network Interface (UNI) |
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Definition
| The _____, as a user device, is an ATM border device that connects one ATM network to another ATM network or a LAN. |
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Term
Network-to-Network Interface (NNI) |
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Definition
| The ____ is a switch that is inside an ATM network. |
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Term
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Definition
| ____ are identified by a Virtual Path Identifier (VPI). |
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Term
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Definition
| ____ is a WAN protocol that functions at the Physical and Data Link layers of the OSI model. It is a packet-switched technology that allows transmission of data over a shared network medium and bandwidth using virtual circuits. It provides reliable communication lines and efficient error-handling mechanisms that discard erroneous data frames. |
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Term
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Definition
| A ____ is a combination of two WAN connectivity devices that work together to connect a digital WAN line with a customer's LAN. |
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Term
Multiprotocol Label Switching (MPLS) |
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Definition
| _______ is a high-performance, multi-service switching technology in use in packet data networks. It is defined by a set of IETF specifications that enable Layer 3 devices, such as routers, to establish and manage network traffic. It ensures faster switching of data as it follows label switching that helps save processing time of packets by the label-switching routers. |
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Term
Digital Subscriber Line (DSL) |
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Definition
| A _____ is a point-to-point, public network access broadband Internet connection method that transmits digital signals over existing phone lines. |
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Term
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Definition
| ______ is an international telephone system that carries analog voice data. It offers traditional telephone services to residences and establishments. It includes telephones and fax machines that set up temporary but continuous connections. |
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Term
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Definition
| ____ is a digital circuit switching technology that carries both voice and data over digital phone lines or PSTN wires. It uses digital channels for data transmission over conventional telephone lines. But unlike telephone signaling, its signals are not converted to analog and are transmitted as digital signals. |
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Term
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Definition
| The _____ is a digital and packet-switched system designed to carry multiplexed telephone connections. It makes communications more scalable than analog, circuit-switched systems. This system use two twisted pairs of copper wires. The first pair is used for transmission and the second pair for reception. Therefore, the systems supports full-duplex communication. T1 and T3 are the two most common service levels. |
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Term
Plesiochronous Digital Hierarchy (PDH) |
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Definition
| ____ networks carry data over fibre optic or microwave radio systems. In this type of network, the different parts are ready, but are not synchronized. |
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Term
Synchronous Digital Hierarchy (SDH) |
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Definition
| synchronized network in which the movement of data is highly synchronized along different parts. In ____, data moves on an optical fiber using LEDs. Basic data transmission occurs at a rate of 155.5 Mbps. |
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Term
Synchronous Optical Network (SONET) |
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Definition
| The ____ is a standard for synchronous data transport over a fiber optic cable. It has two specifications: the OC specification for fiber optic cabling and the STS specification for copper wire. It is most widely used by inside service providers to act as a high-speed backbone for other systems, such as Frame Relay and ATM. |
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Term
The International Telecommunication Union (ITU) |
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Definition
| ____ is an international organization within the United Nations that defines global technical standards for telecommunications. It also coordinates the widespread use of the radio spectrum, ensuring interference-free wireless communications. |
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Term
Dense Wavelength Division Multiplexing (DWDM) |
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Definition
| ____ is a multiplexing technology that uses light wavelengths to transmit data. Signals from multiple sources using different technologies are carried simultaneously on separate light wavelengths. It can multiplex up to 80 separate data channels into a lightstream for transmission over an optical fiber. |
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Term
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Definition
| The ____ standard specifies the bandwidth for fiber optic transmissions. |
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Term
Passive Optical Network (PON) |
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Definition
| The ____ is a point-to-multipoint optical network that is used for broadcast transmissions using optical systems. |
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Term
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Definition
| A ____ uses wireless network technology to allow users to check email, surf the web, and connect to corporate resources accessible within wireless network boundaries. |
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Term
Long Term Evolution (LTE) |
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Definition
| _____ is a radio technology for wireless broadband access. It has been introduced in 3GPP Release 8. LTE will be backward compatible with GSM and HSPA. This compatibility will enable users to make voice calls and have access to data networks even when they are in areas without LTE coverage. |
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Term
High Speed Packet Access (HSPA) |
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Definition
| ____ refers to a family of technologies based on the 3GPP Release 5 specification, which offers high data rate services in mobile networks. |
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Term
| Wireless Interoperability for Microwave Access (WiMAX) |
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Definition
| ____ is a packet-based wireless telecommunication technology that provides wireless broadband access over long distances. |
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Term
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Definition
| _____ are PSTN connections that use modems, existing phone lines, and long-distance carrier services to provide low-cost, low-bandwidth WAN connectivity and remote network access. |
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Term
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Definition
| A ____ is a communication device that converts a computer's digital signals into analog signals before transmission over telephone lines. |
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Term
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Definition
| A ____ is a telecommunication path that is available 24 hours a day for use by a designated user. |
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Term
Internet Connection Sharing (ICS) |
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Definition
| ______ is a connectivity service for computer systems that connects multiple computers to the Internet by using a single Internet connection. |
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Term
Session Initiation Protocol (SIP) |
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Definition
| _____ initiates, modifies, and terminates a session. It is a signaling protocol for multimedia communication sessions. |
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Term
Session Description Protocol (SDP) |
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Definition
| ____ Describes the content of a multimedia communication session. |
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Term
Real-time Transport Protocol (RTP) |
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Definition
| ____ Transmits audio or video content and defines the packet for delivery including the type of content, sequence numbering, time stamping, and delivery monitoring. |
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Term
Real-time Transport Control Protocol (RTCP) |
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Definition
| ____ monitors QoS in RTP transmissions. Acts as a partner to RTP to package and deliver data but does not transport data. |
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