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TCP/IP Hours 9,10,11
Sam's Teach Yourself TCP/IP Hours 9, 10, and 11, Connected, Firewalls, and DNS
| Question | Answer |
|---|---|
| 802.11 | A set of protocols for wireless communications. Occupies the Network Access layer of TCP/IP model or the Data Link/Physical layers of OSI model. |
| Access point | Device that serves as a connecting point from wireless network to a wired network. Acts as a network bridge, forwarding frames to and from a wireless network to a Ethernet network |
| Associate | A procedure in which a wireless device registers its affiliation with a nearby access point |
| bluetooth | A protocol architecture for wireless applicances and devices in close proximity. |
| bridge | A connectivity device that forwards data based on a MAC address. Works like a switch but only has two ports |
| Cable Modem Termination System (CMTS) | A device that serves as an interface from a cable modem connection to the provider network |
| Cut-through switching | Switching method that causes the switch to start forwarding the frame as soon as it obtains the destination address |
| Digital Over Cable Service Interface Specification (DOCSIS) | A specification for a cable modem networks |
| Digital Service Line Access Multiplexer (DSLAM) | A device that serves as an interface from a DSL connection to the provider network |
| Digital Subscriber Line (DSL) | A form of broadband connection over a telephone line |
| Hub | Connectivity device to which network cables are attached to form a network segment. Hubs do not filter traffic but retransmit incoming frames to all ports |
| Independent Basic Service Set | A wireless network consisting of two or more devices communicating directly with each other |
| Infrastructure Basic Service Set | A wireless network in which the wireless devices communicate through one or more access points connected to a conventional wired network |
| intelligent hub | Hub capable of performing additional tasks such as blocking off a port when a line problem is detected |
| Link Control Protocol (LCP) | A protocol used by PPP to establish, manage and terminate dial-up connections |
| Maximum Receive Unit (MRU) | The maximum length of the data enclosed in a PPP frame |
| Mobile IP | An IP addressing scheme designed to support roaming mobile devices |
| Modem | A device that translates a digital signal to or from a analog signal. Modulator / Demodulator |
| Network Control Protocol (NCP) | One of a family of protocols design to interface PPP with specific protocol suites such as IP, IPX, and Appletalk |
| Open Authentication | An authentication technique in which the device must supply a preconfigured string known as the Service Set Identifier (SSID) to access the network |
| Point-to-Point connection | A connection consisting of exactly two communicating devices sharing a tranmission line |
| Reassociate | The procedure in which a wireless device changes its affiliation from one access point to another one |
| Serial Line Internet Protocol (SLIP) | An early TCP/IP based dial-up protocol |
| Shared Key Authentication | An authentication technique in which the device must prove its knowledge of a secret key |
| Store and Forward switching | A switching method that causes the switch to receive the entire frame before transmitting |
| Switch | A connectivity device that is aware of the MAC address associated with each of its ports and forwards each incoming frame to the correct port |
| Wide Area Network (WAN) | A collection of technologies designed to provide relatively fast (not as fast as LAN tech) and high-bandwidth connections over long distances |
| Wire Equivalent Privacy (WEP) | A standard for security on 802.11 wireless networks |
| Wireless Application Protocol (WAP) | An upper-layer protocol stack for wireless devices |
| Wireless Markup Language (WML) | A scaled-down version of XML used in conjunction with the WAP protocols |
| WAP Session Protocol (WSP) | The WAP equivalent of HTTP, WSP provides a method for exchanging data between applications |
| WAP Datagram Transport Protcol (WDP) | A WAP connectionless Transport layer protocol modeled on UDP |
| WAP Transaction Protocol (WTP) | A WAP protocol that provides handshake and acknowlegement services to initiate and confirm WAP transactions. (Like TCP) |
| WAP Transaction Layer Security (WTLS) | A WAP Security protocol modeled on SSL |
| Wireless Markup Language (WML) | A scaled-down version of XML used in conjunction with the WAP protocols |
| WAP Session Protocol (WSP) | The WAP equivalent of HTTP, WSP provides a method for exchanging data between applications |
| WAP Datagram Transport Protcol (WDP) | A WAP connectionless Transport layer protocol modeled on UDP |
| WAP Transaction Protocol (WTP) | A WAP protocol that provides handshake and acknowlegement services to initiate and confirm WAP transactions. (Like TCP) |
| WAP Transaction Layer Security (WTLS) | A WAP Security protocol modeled on SSL |
| Domain Name System (DNS) | A system for naming resources on TCP/IP networks. Using names instead of IP addresses. |
| Domain Name | A name assigned to a hierarchical partition on the DNS namespace. |
| Fully Qualified Domain Name (FQDN) | The name generated by concatenating a hostname with a domain name. |
| Hostname | A single name used to identify a computer (host). |
| LMHosts | A file that associates IP addresses to NetBIOS names. |
| Resource Record | An entry added to zone files. There are a number of resource record types, and each has a specific purpose. |
| WINS (Windows Internet Naming Service) | A WINS server is a Microsoft implementation of a NetBIOS name server |
| Zone file | The configuration files used by DNS servers. These text files are used to configure DNS servers. |
| Start of Authority (SOA) | The SOA resource record designates the authoritative name server for the zone |
| Name Server (NS) | The NS resource record designates a name server for the zone. A zone may have several name servers but only one SOA record for the authoritative name server. |
| Address (A) | The A resource record maps a DNS name to an IP Address |
| Pointer (PTR) | The PTR resource record maps an IP address to a DNS name. Reverse lookup |
| Canonical Name (CNAME) | A CNAME resource record maps an alias to the actual hostname represented by an A record |
| NSLookup | A DNS command line utility that enables you to query DNS servers an view information such as resource records. It is used to troubleshoot DNS. |
| DDNS (Dynamic DNS) | Used in conjunction with DHCP to obtain the name from the IP address when while using DHCP (Dynamic Host Configuration Protocol) to obtain IP addresses automatically. |
| DMZ | An intermediate space inhabited by Internet servers that falls behind a front firewall and in front of a more restrictive firewall protecting an internal network |
| firewall | A device or application that restricts network access to an internal network |
| Packet filter | A firewall that filters by port number or other protocol information indicating the purpose of the packet |
| proxy server | A computer or application that requests services on behalf of a client. Adds performance and security |
| reverse proxy | A computer or application that receives inbound requests from the Internet and forwards them to an internal server. Offers caching and filtering, but hides the details of the computer actually fulfilling the clients request. |
| stateful firewall | A firewall that is aware of the state of the connection |
Created by:
Leisac
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