F - Definitions

  • F

    fault management

    Fault management is the component of network management that detects, isolates and fixes problems.

  • fax

    A fax -- short for 'facsimile' and sometimes called 'telecopying' -- is the telephonic transmission of scanned-in printed material, including text or images.

  • FCAPS (fault, configuration, accounting, performance and security)

    FCAPS (fault, configuration, accounting, performance and security) is a network management framework created by the International Organization for Standardization (ISO).

  • FDDI (Fiber Distributed Data Interface)

    FDDI (Fiber Distributed Data Interface) is a network standard that uses fiber optic connections in a local area network (LAN) that can extend in range up to 200 kilometers (124 miles).

  • fiber optics (optical fiber)

    Fiber optics, or optical fiber, refers to the technology that transmits information as light pulses along a glass or plastic fiber.

  • fiber to the home (FTTH)

    Fiber to the home (FTTH), also called fiber to the premises (FTTP), is the installation and use of optical fiber from a central point to individual buildings to provide high-speed internet access.

  • fiber to the x (FTTx)

    Fiber to the x (FTTx) is a collective term for various optical fiber delivery topologies that are categorized according to where the fiber terminates

  • file server

    A file server is a computer responsible for the storage and management of data files so that other computers on the same network can access the files.

  • File Transfer Access and Management (FTAM)

    File Transfer Access and Management (FTAM) is an OSI application Layer 7 protocol that standardizes how files are accessed and managed in a distributed network file system.

  • firewall as a service (FWaaS)

    Firewall as a service (FWaaS), also known as a cloud firewall, is a service that provides cloud-based network traffic analysis capabilities to customers as part of an overall cybersecurity program.

  • fixed-length subnet mask (FLSM)

    A fixed-length subnet mask (FLSM) refers to a type of enterprise or provider networking where a block of IP addresses is divided into multiple subnets of equal length (i.e., an equal number of IP addresses).

  • flooding (network)

    In a computer network, flooding occurs when a router uses a non-adaptive routing algorithm to send an incoming packet to every outgoing link except the node on which the packet arrived.

  • flow routing

    Flow routing is a network routing technology that takes variations in the flow of data into account to increase routing efficiency.

  • frame relay

    Frame relay is a packet-switching telecommunications service designed for cost-efficient data transmission for intermittent traffic between local area networks (LANs) and between endpoints in wide area networks (WANs).

  • frequency band

    In telecommunications, a frequency band -- sometimes called a band -- refers to a specific range of frequencies in the electromagnetic frequency spectrum assigned to certain applications.

  • frequency-division multiplexing (FDM)

    In frequency-division multiplexing (FDM), multiple signals are combined for transmission on a single communications line or channel, with each signal assigned to a different frequency (subchannel) within the main channel.

  • frequency-hopping spread spectrum (FHSS)

    Frequency-hopping spread spectrum (FHSS) transmission is the repeated switching of the carrier frequency during radio transmission to reduce interference and avoid interception.

  • frequency-shift keying (FSK)

    Frequency-shift keying (FSK) is a method of transmitting digital signals using discrete signals.

  • FTP (File Transfer Protocol)

    FTP (File Transfer Protocol) is a network protocol for transmitting files between computers over TCP/IP connections.

  • full-duplex

    Full-duplex data transmission means that data can be transmitted in both directions on a signal carrier at the same time.

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