Chapter 15

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Bandwidth

(the width of the band) is the theoretical number of bits that can be transmitted over a network at one time, similar to the number of lanes on a highway.

netdom add

Adds a workstation to the domain

Fiber optic

Another broadband technology used for Internet access. The technology uses a dedicated line from your ISP to your place of business or residence.

2 newer types of fiber-optic connectors

LC (local connector) and MT-RJ (mechanical transfer registered jack) connectors

RJ-11 jacks

Modem cards in desktop computers provide two phone jacks, called ____ so that one can be used for dial-up networking and the other jack can be used to plug in an extension telephone.

netdom move

Moves a workstation to a new domain

netdom resetpwd

Resets the password of the computer account for a domain controller

2 older types of fiber-optic connectors

ST (straight tip) and SC (subscriber connector)

fiber-optic cable

Television, Internet data, and voice communication all share the broadband _____.

point-to-point (PTP)

This dedicated line is called a ____ connection because no other business or residence shares the line with you.

Internet Service Provider (ISP)

To connect to the Internet, a network first connects to an ____ such as Earthlink or Comcast. most common types of connections are DSL and cable Internet

netdom verify

Verifies the connection is secure between a workstation and a domain controller

Power over Ethernet (PoE)

a feature that might be available on high-end wired network adapters to allow power to be transmitted over Ethernet cable.

PoE injector

adds power to an Ethernet cable.

hub

an Ethernet ____ transmits the data frame to every device, except the device that sent the frame. its just a pass-through and distribution point for every device connected to it, without regard for what kind of data is passing through and where the data might be going.

F connector

cable used for RG-6.

loopback plug

can be used to test a network cable or port

net localgroup

command adds, displays, or modifies local user groups. To display available local groups, use the following command: net localgroup

netdom (network domain)

command allows administrators to manage Active Directory domains and trust relationships for Windows Server from the command prompt on the server or remotely from a Windows 8/7 workstation.

tracert (trace route)

command can be useful when you're trying to resolve a problem reaching a destination host such as an FTP site or website. ex: tracert www.cengage.com

ipconfig (IP configuration)

command can display TCP/IP configuration information and refresh the TCP/IP assignments to a connection, including its IP address.

net use

command connects or disconnects a computer from a shared resource or can display information about connections.

netstat (network statistics)

command gives statistics about TCP/IP and network activity and includes several parameters.

ifconfig (interface configuration)

command is similar to ipconfig, and is used on UNIX, Linux, and Mac OS X operating systems.

nbstat (NetBIOS over TCP/IP statistics)

command is used to display statistics about the NetBT (NetBIOS over TCP/IP) protocol. NetBIOS is an older network protocol suite used before TCP/IP.

nslookup (namespace lookup)

command lets you read information from the Internet namespace by requesting information about domain name resolutions from the DNS server's zone data.

net user

command manages user accounts.

ping (Packet InterNet Groper)

command tests connectivity by sending an echo request to a remote computer. If the remote computer is online, detects the signal, and is configured to respond to a ping, it responds.

What do you need to set up small network?

computers, switches, network cables, a router, and whatever device (for example, a DSL or cable modem) that provides Internet access.

cellular network or cellular WAN

consists of cells, and each cell is controlled by a base station.

PAN (personal area network)

consists of personal devices communicating at close range such as a cell phone and laptop computer. wired connections (such as USB or FireWire) or wireless connections (such as Bluetooth or Infrared).

MAN (Metropolitan area network)

covers a large campus or city. (A small MAN is sometimes called a CAN or campus area network.) Network technologies used can be wireless (most likely LTE) and/or wired (for example, Ethernet with fiber-optic cabling).

WAN (wide area network)

covers a large geographical area and is made up of many smaller networks. The best-known WAN is the Internet. Some technologies used to connect a single computer or LAN to the Internet include DSL, cable Internet, satellite, cellular WAN, and fiber optic.

wireless LAN (WLAN)

covers a limited geographical area, and is used in businesses, homes, restaurants, public parks, airports, schools, and many other places where network cabling is inconvenient to install or use.

LAN

covers a small local area, such as a home, office, other building, or small group of buildings. LANs can use wired (most likely Ethernet) or wireless (most likely Wi-Fi, also called 802.11) technologies. A LAN is used for workstations, servers, printers, and other devices to communicate and share resources.

coaxial cable

has a single copper wire down the middle and a braided shield around it. It is stiff and difficult to manage, and is no longer used for networking.

100BaseT or Fast Ethernet

improved version of Ethernet operates at 100Mbps and uses STP or UDP cabling rated CAT-5 or higher.

Cable Internet

is a broadband technology that uses cable TV lines and is always connected (always up).

bridge

is a device that stands between 2 segments of a network and manages network traffic between them.

DSL (Digital Subscriber Line)

is a group of broadband technologies that covers a wide range of speeds. DSL uses ordinary copper phone lines.

network multimeter

is a multifunctional tool that can test cables, ports, and network adapters.

toner probe

is a two-part kit that is used to find cables in the walls of a building.

Switch

is smarter and more efficient than a hub because it keeps a table of all the MAC addresses for devices connected to it.

Wi-Fi analyzer

is software that can find Wi-Fi networks, determine signal strengths, help optimize Wi-Fi signal settings, and help identify Wi-Fi security threats.

data throughput

is the average of the actual speed.

crimper

is used to attach a terminator or connector to the end of a cable.

wire stripper

is used to build your own network cable or repair a cable.

straight-through cable aka patch cable

is used to connect a computer to a switch or other network device.

crossover cable

is used to connect two like devices such as a hub to a hub or a computer to a computer (to make the simplest network of all).

punchdown tool

is used to punch individual wires in a network cable into their slots in a keystone RJ-45 jack that is used in an RJ-45 wall jack.

cable tester

is used to test a cable to find out if it is good or to find out what type of cable it is if the cable is not labeled.

reverse lookup

is when you use the nslookup command to find the host name when you know a computer's IP address, such as: nslookup 192.168.1.102

base station

might include more than one transceiver and antenna on the same tower to support multiple technologies (such as LTE and GSM).

latency

network transmissions experience delays, called _____

Gigabit Ethernet

operates at 1000Mbps and uses twisted-pair cable and fiber-optic cable. Popular choice for LAN.

patch panel

provides multiple network ports for cables that converge in one location such as an electrical closet or server room.

T568A

standard has the green pair connected to pins 1 and 2 and the orange pair connected to pins 3 and 6.

T568B

standard has the orange pair using pins 1 and 2 and the green pair using pins 3 and 6.

RG-6 coaxial cable

used for cable TC, having replaced the older and thinner RG-59 coaxial cable

Twisted-pair cabling

uses pairs of wires twisted together to reduce crosstalk.

Ethernet over Power (EoP)

uses the power lines in a building to transmit data.


Kaugnay na mga set ng pag-aaral

Supply Chain Management Exam 1: Chapter 4

View Set

Wong, Chapter 27: Altered LOC in peds/Neuro Assessment, submersion injury, meningitis.

View Set

Chapter 19: Nursing Care of the Child With an Alteration in Perfusion/Cardiovascular Disorder, Nursing Care of the Child with a Cardiovascular Disorder

View Set