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74 Cards in this Set

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  • Back
The professional cetification established by CompTIA that verifies knowledge about PC operatin, repair, and management.
network address
A number that uniquely identifies each workstation and device on a network. Without unique addresses, computers on a network could not reliably communicate.
address management
The process of centrally administering a finite number of network addresses for an entire LAN. Usually this task can be accomplished wihtout touch the client workstations.
The scheme for assigning a unique identifying number to every workstation and device on the network. The type of addressing used ona network depends on its protocols and network operation system.
asset management
The process of collecting and storing data on the number and types of software and hardware assets in an organizations network. The data collection is automated by electronically examining each network client from a server.
The part of a network to which segments and significant shared devices (such as routers, swithces, and servers) connect. Sometimes referred to as a "network of networks," because of its role in interconnecting smaller parts of a LAN or WAN.
The process of copying critical data files to a secure storage area. Often perfmored according to a formulaic schedule.
The process of mastering material pertaining to a particular hardware system, operating system, programming language, or other software program, then proving your mastery by passing a series of exams.
A compuer on the network that requests resources or services from from another computer on a network. In some cases it can be the server. Can also refer to the person or software on the computer.
client/server network
A network that uses centrally administered computers, known as servers, to enable resource sharing for and facilitate communication between the other computers on the network.
client/server architecture
A network design in which clients(typically desktop or laptop computers) use a centrally administered server to share data, data storage space, and devices.
CNE (Certified Netware Engineer)
The professional certification established by Novell that demonstrates an in-depth understanding of Novell's networking software, including NetWare.
CompTIA (Computing Technology Industry Association)
An association of coputer resellers, manufacturers, and training companies that sets industry wide computer standards for computer professionals. Established and sponsors A+ and Net+ certifications.
connectivity device
One of several types of specialized devices that allows two or more networks or multiple parts of of one network to connect and exchange data.
data packet
A discrete unit of information sent from one node on a network to another.
file server
A specialized computer that enables clients to share applications and data across the network.
file services
The functions of a file server that allow users to share data files, applications, and storage areas.
A computer that enables resource sharing by other computers on the same network.
A complex WAN that connects LANs and clietns around the globe.
LAN (Local Area Network)
A network of computers and other devices that is confined to a relatively small space, such as one building or even on office.
Internet services
The services that enable a network to communicate with the Internet, including World Wide Web servers and browsers, file transfer capabilities, Internet addressing schemes, security filters, and a means for directly logging on to other computers.
license tracking
The process of determining the number of copies of a single application that are currently in use on the network and whether the number in use exceeds the authorized number of licenses.
load balancing
The process of distributing data transfer activity evenly accross a network so that no single device is overwhelmed.
mail server
A server that manages the storage and transfer of e-mail messages.
mail services
The network services that manage teh storage and transfer of e-mail to between users on a network. Also includes routing, filtering, notification, scheduling, and data exchange with other mail servers.
MAN (metropolitan area network)
A network that is larger than a LAN, typically connecting clients and servers from multiple buildings, but within a limited georgraphic area.
management services
The network services that centrally administer and simplify complicated management tasks on the network. IE(license tracking, security audting, asset management, address management, etc.)
MCSE (Microsoft Certified Systems Engineer)
A professional certification established by Microsoft that demonstrates and in-depth knowledge about Microsoft products, including Windows 2000, XP and Server.
The main circuit board that controls a computer.
A group of computers and other devices(such as printers) that are connected and by and can exchange data via some type of transmission media, such as a cable, a wire or the atmosphere.
Network+ (Net+)
The professional certification established by CompTIA that verifies broad, vendor-independent networking technology skills, such as an understanding of protocols, topologies, networking hardware, and network troubleshooting.
NIC (Network Interface Card)
The device that enables a workstation to connect to the network and communicate with other computers. Also called network adapters.
A computer or other device connected to a network, which has a unique address and is capable of sending or receiving data.
NOS (network operating system)
The software that runs on a server and enables the server to manage data, users, groups, security, applications, and other networking functions. IE(MS Windows NT, 2000, Server, Server 2003, UNIX, Linux, and Novell NetWare.)
P2P (peer-to-peer network)
A network in which every computer can communicate directly with every other computer. By default, no computer has more authority than another. Each computer can be configured to share some of its resources and keep other resources inaccessible to other nodes on the network.
print services
The network service that allows printers to be shared by several users on a network.
A standard method or format for communication between network devices. It ensures that data are transferred whole, in sequence, and without error form one node on the network to another.
remote access server (communications server or access server)
A server that runs communications services that enable remote users to log on to a network.
The devices, data, and data storage space provided by a computer, whether standalone or shared.
The process of retrieving files from a backup, usually when the original files are lost or deleted.
The property of a network that allows you to add nodes or increase its size easily.
security auditing
The process of evaluating security measure currently in place on a network and notifying the network administrator if a security breach occurs.
A part of a network. Usually composed of a group of nodes that share the same communication channel for all their traffic.
A computer on the network that manages shared resources. Usually has more processing power, memory and hard disk space than clients and uses network operating software.
A way of exchanging data between computers that are not connected on a network. Requires that data be copied from a computer to a removable storage device such as a floppy disk, carried on foot to another computer and copied.
soft skills
The skills such as customer relations, leadership ability, and dependabililty.
software distribution
The process of automatically transferring a data file or installing a software application from the server to a client on the network.
An unsolicited, unwanted e-mail.
standalone computer
a computer that uses applications and data only from its local disks and is not connected to a network.
The physical layout of computers on a network
The data transmission and processing activity taking place on a computer network at any given time.
traffic monitoring
The process of determing how much data transfer activity is taking place on a network or network segment and notifying administrators when a segment becomes overloaded.
transmission media
The means through which data are transmitted and received. Transmission media may be physical, such as wire or cable, or atmostpheric(wireless), such as radio waves.
A person who uses a computers
WAN (Wide Area Network)
A network that spans a long distance and connects two or more LANs.
Web server
A computer that manages Web site services, such as supplying a Web page to multiple users.
A computer that runs a desktop operating system and connects to a network.
What was the only method of sharing files between computers before networks were invented?
copying data from one computer to a floppy disk, and then reading from that disk at another computer.
The first services widely used by networks were?
file and print services
Enables workstations that are not connected to a server to share documents in a peer-to-peer fashion.
Desktop operating system software.
is the primary function of a file server on a network?
It manages access and use of shared applications and data.
On most LANs, a computer acting as a server differs from a computer acting as a
client in which of the following ways?
The server would run a different operating system than the client and possesses greater processing power than the client.
Where would a MAN be most appropriate?
a corporate headquarters connecting its five buildings across a small campus
Client-Server Networks
* Rely on a centrally administered server(s)
* More complex and expensive than a P2P network
* Easier to manage than a P2P network
* More scalable than a P2P network
* Typically - More secure than a P2P network
* Accounts can be managed from one computer
* Resource rights can be easily granted to users or groups
* Network problems can be tracked, diagnosed and fixed from one location
* Servers are optimized to handle heavy loads and many requests
* Response times are typically faster
* A server can connect more than a handful of computers on a network
* The most popular type of network for medium to large networks
* Network+ covers mostly these types of networks
Peer-to-Peer Networks (aka P2P)
* Every computer can communicate directly with every other computer
* By defualt, no computer has more authority than another
* Each computer can be configured to share only a part of its resources
* Simple and inexpensive to setup
* Not always as scalable or flexible
* Often less secure than a client server network
* Not as practical when connecting a large number of computers because they do not centralize resources
Elements Common to all Client-Server Networks
* Reliance on a centrally administered server(s) for resource management
* Servers have greater authority than the network clients
* Clients, servers, workstations, transmission media, connectivity devices, protocols, addressing, topology, NICs, data packets, network operating systems, hosts, backbones, segements and nodes
What is the main difference between MANs and WANs?
MANs typically cover a shorter geographical range than WANs.
What is the term used to describe a discrete unit of data that’s sent from one node to another over the network?
How can a server tell the difference between many clients on a network?
Each is identified by a unique network address.
What device connects a client computer to a network’s medium, such as a wire?
network interface card
The physical layout of nodes on a network is known as the network’s:
Security is a concern when using remote access servers on a network because:
Access servers enable computers to dial in to a network and obtain access to its resources, thereby exposing the network to the outside world.
Distributing data transfer activity equally over several devices or components belongs to which category of network management services?
load balancing
What organization sponsors the A+ and Network+ certifications?