NW203 Test3Ch8-10 terms

A popular open source Linux Web server.

Values collected for comparison against later performance statistics.

A downloadable or otherwise distributable set of Linux installation files for a specific Linux flavor and kernel version. Most distributions include a suite of preinstalled applications.

A data format used for formatting data for transmission using defined schemas, similar in format to the HTML used for webpages.

A security device that filters traffic into or out of a network or subnet.

The specific open source license that applies to most Linux distributions.

An Active Directory method for defining and distributing policy configuration information throughout the directory or to specify groups of users or computers.

A highly secure industry-standard authentication method. Developed for UNIX and supported on most current NOSs as an authentication method.

A Macintosh operating system feature that supports local caching of online (Internet) passwords.

A TCP/IP authentication protocol.

TCP/IP protocols that support network printer access in a UNIX/Linux network environment.

A Mac directory-based networking model.

A UNIX/Linux command-line interface.

A software simulated computer.

Specialized applications that run on Web servers and provide services to clients over the Internet.

A popular UNIX graphical user interface.

The IEEE standard for WPAN or Bluetooth devices.

A special packet type sent by a receiving system to acknowledge successful receipt of one or more datagrams.

Asynchronous Transfer Mode (ATM) A packet-switched network standard communication method that provides improved performance compared to X.25 and is scalable up to 39Gbps.

Basic rate interface (BRI) An ISDN configuration that has two B channels and one D channel.

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) An access method used on Wi-Fi networks that is similar to the CSMA/CD used on Ethernet networks, except that it makes more of an effort to avoid collisions between transmitting devices.

Clear to send (CTS) A signal sent by a WAP to inform a computer that it can send data.

A connection architecture in which you know your connection points but not the communication path inside the cloud.

A connection method in which you lease circuits from common carriers at a flat rate.

Distributed coordination function (DCF) A media access method in which a device must physically listen before transmitting. Also known as physical carrier-sense method (PCSM).

Dynamic Host Configuration Protocol (DHCP) A protocol and service used to provide IP addresses and TCP/IP configuration parameters.

EAP–Transport Layer Security (EAP-TLS) An EAP protocol extension designed for use with smart cards for authentication.

A transmission method that transmits data faster than X.25 but slower than ATM; it does not include any error control.

Integrated Services Digital Network (ISDN) A circuit-switched network communication method that combines voice, video, and data communication.

Internet Protocol Security (IPsec) An industry-standard security protocol that provides encryption and authentication for L2TP VPN connections.

Layer 2 Tunneling Protocol (L2TP) An industry-standard VPN connection protocol.

Negative acknowledgement (NAK) A special packet type sent by a receiving system to indicate that a packet was not successfully received.

Packet assembly/disassembly device (PAD) A packet-switched network connection device.

A cloud architecture carrier network that uses a fixed-rate connection plus per-packet charges to determine charges.

Physical carrier sense method (PCSM) See distributed coordination function (DCF).

Plain old telephone service (POTS) A telephone network and infrastructure that includes the standard dial-up phone network.

Point coordination function (PCF) A wireless transmission method that uses RTS and CTS to control transmissions. Also known as virtual carrier-sense method (VCSM).

Point-to-Point Protocol over Ethernet (PPPoE) A communication protocol that encapsulates PPP frames inside Ethernet packets.

Point-to-Point Protocol (PPP) A protocol that is used for remote connections over a variety of connection methods and that supports multiple network protocols.

• Point-to-Point Tunneling Protocol (PPTP) A Microsoft-developed protocol that is used for VPN connectivity.
• Primary rate interface (PRI) An ISDN configuration that supports up to 23 64Kbps B channels and one 64Kbps D channel.

Public Switched Telephone Network (PSTN) A telephone network and infrastructure that includes the standard dial-up phone network.

Any combination of hardware and software components that are used to permit access to a network from remote clients.

Remote Authentication Dial-in User Service (RADIUS) A centralized authentication method.

Request to transmit (RTS) A message type in a WAP, whereby a system requests to be permitted to transmit on the network.

Serial Line Internet Protocol (SLIP) An older access protocol originally designed for use with UNIX computers. SLIP passes user names and passwords as clear text.

Synchronous Digital Hierarchy (SDH) The name under which SONET is marketed.

Synchronous Optical Network (SONET) An ANSI-standard high-speed U.S. fiber-based communication network.

The standard T-carrier circuit for carrying voice and data. 1.544Mbps

Bundles of T1 lines. T2=6.312Mbps, T3=44.376Mbps, T4=274.176Mbps

(TA) An ISDN client device that performs the same role as a network adapter for ISDN connectivity. Also known as an ISDN modem.

An IPsec mode in which the data portion of a packet is encrypted for host-to-host communications.

An IPsec mode in which the entire IP packet is encrypted and then encapsulated in another IP packet for host-to-host, host-to-network, and network-to-network communications.

Virtual private network (VPN) An encrypted, secure, private communication path over a public carrier.

Wireless Personal Area Network (WPAN) The standard covering Bluetooth devices, also known as the IEEE 802.15 standard.

The oldest packet-switched service in current use.

Public Switched Telephone Network (PSTN) A telephone network and infrastructure that includes the standard dial-up phone network.

Any combination of hardware and software components that are used to permit access to a network from remote clients.

Remote Authentication Dial-in User Service (RADIUS) A centralized authentication method.