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31 Cards in this Set
- Front
- Back
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a cable used to connect 2 PCs into the simplest network possible ; also used to connect two hubs
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crossover cable
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The gateway a computer on a network will use to access another network unless it knows to specifically use another gateway for quicker access to that network
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Default Gateway
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A service that assigns dynamic IP address to computers on a network when they first access the network
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DHCP
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a distributed pool of information (called the name space) that keeps track of assigned domain names and their corresponding IP addresses
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DNS (Domain Name Service or domain name system)
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An assigned IP address that is used for the current session only. When the session is terminated, the IP address is returned to the list of available addresses
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Dynamic IP address
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A unique, text-based name that identifies a network
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domain name
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The most popular LAN architecture that can run at 10 Mbps, 100 Mbps, or 1 Gbps
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Ethernet
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The header and trailer information added to data to form a data packet to be sent over a network
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frame
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A computer or other device that connects networks
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gateway
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any computer or other device on a network that has been assigned an IP addresses; also called a node
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host
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a name that identifies a computer, printer, or other device on a network
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host name
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A network device or box that provides a central location to connect cables
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hub
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A private network that uses the TCP/IP protocols
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intranet
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A 32-bit address consisting of four numbers separated by periods, used to uniquely identify a device on a network that uses TCP/IP protocols
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IP address
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A computer network that covers only a small area, usually within one building
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LAN (Local Area Network)
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A 48-bit hardware address unique to each NIC and assigned by the manufacturer
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MAC address
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A process that converts private IP addresses on a LAN to the proxy server's IP address before a data packet is sent over the Internet
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NAT (Network Address Translation)
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An expansion card that plugs into a computer's motherboard and provides a port on the back of the card to connect a PC to a network
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network interface card
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An operating system that resides on the controlling computer in the network; controls what software, data, and devices a user on the network can access
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NOS (Network Operating System)
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Term for each of the four 8-bit numbers that make up an IP address
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octet
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Segment of network data that also includes header, destination address, and trailer information that is sent as a unit
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packet
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a network cable that is used to connect a PC to a hub, switch, or router
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patch cable
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a Windows and Unix command used to troubleshoot network connections; verifies that the host can communicate with another host on the network
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ping (packet internet grouper)
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A server that acts as an intermediary between another computer and the Internet; substitutes its own IP address for the IP address of the computer on the network making a request, so that all traffic over the Internet appears to be coming from only the IP address of the proxy server
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Proxy Server
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A connector used with twisted-pair cable that connects the cable to the NIC
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RJ-45 connector
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A device that amplifies signals on a network so they can be transmitted further down the line
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repeater
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A cable that is made of one or more twisted pairs of wires and is surrounded by a metal shield
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shielded twisted pair (STP) cable
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A network topology in which the nodes in a network form a ring; each node is connected only to two other nodes, and a centralized hub is not required
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ring topology
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An IP address permanently assigned to a workstation (or manually assigned)
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static IP address
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A subnet mask is a group of 4 numbers (dotted decimal numbers) that tell TCP/IP if a remote computer is on the same or different network
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subnet mask
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a device used to segment a network; it can decide which network segment is to receive a packet, on the basis of the packet's destination MAC address
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switch
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