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POIT - Unit 4.5 TEST
Terms in this set (89)
The central core of a network, this connection can link many smaller networks to a larger network.
Often called a network switch, this connects many parts of a network and directs traffic as needed.
A network layout in which there is one main trunk, or backbone, that all the various computers and network devices are connected to.
A network architecture in which each computer is either a (1st word) or a (2nd word).
powerful computers dedicated to managing the clients
PCs on which users run applications, and rely on servers for resources.
A computer intended to be used by one person at a time.
A type of electrical cable often used to transmit cable TV.
The primary networking technology currently in use; defines standards for addressing packets and data and a method for avoiding data conflicts on the network.
What an organization's intranet becomes when the organization allows outsiders to access its it
Cable that uses light guided through thin glass tubes, instead of electrical signals, to transmit data. It is very fast but also expensive.
A piece of hardware or software on a network designed to limit access to certain machines to authorized users only.
A central point on a network where computers can connect. The central point is often a switch rather than a ____. the _____ sends the data to all computers
A private network that looks and functions a lot like the Internet but is typically available only to the employees of an organization.
local area network (LAN)
A type of network where computers are close together, typically in the same building or office.
Two or more devices connected together.
A person who manages a computer network; he or she designed its topology and adjusts it as needed to suit the organization's needs.
The design of a computer network, which specifies how devices communicate with one another. The most common ______ ___________ types are client/server and peer-to-peer.
network interface card (NIC)
part of network hardware: A card that enables one computer to send and receive data to and from another computer.
most common type of network interface card port: ______ jack
network operating system (NOS)
A set of programs used to manage and secure a network; controls access to the network and everything about how the network is used
The rules of initiating, interrupting, and continuing communication on a computer network.
Any receiving point in a computer network.
The small unit into which information is broken down before being sent across a network.
utility shows how data is routed through the internet
Sender's IP address
Receiver's IP address
Data to show end of packet
peer-to-peer (P2P) network
A network architecture where all computers have equal responsibilities and all computers can share files with each other.
data is broken up into small packets and sent out in no special order over the same lines and then reassembled at the end
A device that links two computer networks or links a local area network to the Internet., reads packet addresses and ______-r+s packets.
A computer dedicated to providing one service (such as web hosting, disk storage, and so on) and that is shared by many users across a network.
star bus topology
A LAN topology wherein two star networks are linked using a bus.
A topology with one central node that has each computer or network device attached to the central node. All data first goes into the central node and then is sent out to its destination. (Think of it like a bicycle wheel with spokes.)
A type of hub that uses a table to keep track of destinations so that data can be sent directly to its destination, rather than to every computer on the network before the destination machine receives it.
how things relate to each other in space/how things are organized
token ring topology
A network layout in which each individual node is connected to two others, with the first and last coming back to connect to each other, thus completing the ring shape.
The study of how items are related to one another in space; a configuration.
Ethernet twisted-pair cable
The most commonly used (in LANS) kind of networking cable today.
wide area network (WAN)
A type of network where the computers are far apart—in different buildings, different cities, or even different countries.
the internet is an example of a
Data transmission that uses radio frequencies instead of cabling, but can only go over short distances
Large fiber-optic cables (or bundles of them) that move much of the data packets on the Internet from one place to another.
uses light guided through thin glass tubes to send data, faster than CAT5 cable
An Internet connection that is made using a modem but is always on (dialing in to establish a connection is not needed).
A computer that connects to a server computer.
digital subscriber line (DSL)
A type of Internet connection that uses phone lines but transmits signals digitally across an always-open connection.
A name that identifies a computer network on the Internet.
File Transfer Protocol (FTP)
One particular protocol that allows files to be transferred through a network.
Hypertext Transfer Protocol (HTTP)
The networking protocol used by the World Wide Web. It defines how messages are formatted and transmitted, and the actions web servers must take in response to requests received from clients.
integrated services digital network (ISDN)
A type of Internet connection that uses standard circuit-switched phone lines to send digital data.
Internet Protocol (IP) address
A unique set of numbers assigned to a specific computer that is connected to the Internet. This is similar to a house's street address.
Internet service provider (ISP)
A company that sells and manages consumer access to the Internet.
Networking hardware responsible for keeping data from going where it doesn't need to go while getting it where it should go.
circuit is opened to send transmission and the whole message is sent before the connection is closed
what happens when more than one transmitter tries to pass data along at once
vpns are considered a type of _____
A computer that provides information or services to other computers.
Transmission Control Protocol/Internet Protocol (TCP/IP)
The set of networking rules that control how data is sent from one specific machine (as defined by its IP address) to another; standard internet protocol today
electronic mail (email)
An electronic message that can be sent with or without file attachments such as word processing documents, spreadsheets, and pictures.
Software or hardware used to manage email. Popular software email clients such as Microsoft Outlook and Eudora are also known as mail user agents (MUAs).
To send an abusive or personally insulting message.
A form of Internet chat that is conducted one-on-one through private online chat areas. A user creates a list of other users with whom he or she wants to communicate.
Internet Relay Chat (IRC)
A service that allows many people in different places to "chat" by typing messages in real time, usually in a chat room.
Internet Message Access Protocol (IMAP)
A protocol used to retrieve email messages. IMAP is similar to POP3, but with some advanced features. The main difference between the two is that IMAP generally leaves the email on the mail server.
A group of commonly understood rules of politeness and respect used when communicating online.
A public forum that consists of articles and follow-up comments on one or more specified subjects.
Post Office Protocol (POP)
A protocol used to retrieve email from a mail server. POP3 is a later iteration of the POP protocol, and can be used with or without SMTP.
Simple Mail Transfer Protocol (SMTP)
An Internet-standard protocol for sending email messages between servers on IP networks. Because SMTP is generally used to send messages from a mail client to a mail server, you should specify both the POP or IMAP server and the SMTP server when configuring an email application.
in a client-server network, this is the only machine that talks to every other machine
in p2p, all machines are ____
skype is an example of ____
the internet rooted in the early _____s
Advanced Research Project Agency
US govt research project ran by ___________ ____________ ___________ __________ allowed for internet development
interface message processors
four computers in ARPANET
protocol needed to view page in http://www.cnn.com
host where page is stored in http://www.cnn.com
domain name in http://www.cnn.com
domain name service
traslates addresses from host name to ip, phone book for internet
_______ a computer can tell you whether your connection to that machine is working
these signals happen in nature
analog signals travel in a ____ or sine wave, standard phones use this
these signals only used by computers
digital signals move in a _____ wave
digital signals use _____ numbers
voice over internet protocol
voip means making telephone calls over ____ ____
voip converts your voice into ____ _____
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