Networking

What is true about VPNs

- VPNs allow for encrypted communications using the Internet as the pathway for data transmission and communication - People within the organization use VPN software to login to the VPN - A virtual private network (VPN) creates a secure connection between 2 computers

what's true about troubleshooting a network

- a device that isn't positioned properly can cause weak signal and system issues - check to make sure the cables are not damaged and that all cables are plugged in properly - a poor signal can also be an indicator that the hardware may be old or improperly positioned

what three items are needed to install a home WiFi network?

- a modem - a router - an internet signal

whats true about how IP addresses are determined

- all hosts on the same network share the same established network address, but are assigned a unique host number - an IP address is determined by the network on which it is hosted - often IP addresses are structured and assigned by a service called a dynamic host configuration protocol (DHCP)

Select the statements that are true regarding Satellite Internet service

- customers usually purchase a data plan that limits uploading and downloading - provides broadband service virtually anywhere - uses microwaves to deliver service

whats true about LANs

- ethernet is the most popular networking standard for LANs - A collection of computers that are connected in a small geographic area, such as an office, college campus, or in your home - a home network LAN can consist of two computers. your TV, video game system and a shared printer

the characteristics of fiber optic lines

- high speed transmission - made of one or thousands of fibers

when determining how much cell phone data you need it is important to consider

- how much data you currently use? - do you use your phone to stream movies or TV?

the statements that are true regarding digital subscriber line (DSL) internet service

- internet signal tends to be very consistent - uses telephone wires as transmission wires

characteristics of a router

- provide hardware firewall protection - connect networks - usually incorporate switches

the statements that are true regarding cellular internet service

- uses cell phone radio waves to transmit and receive internet signals - many providers offer data packages that may place limits on uploading and downloading - many smartphones can send and receive WiFi signals, allowing them to become hotpots

the statements that are true regarding switches

- usually integrated in the routers of home networks - ensure correct data is transferred to and from the correct computers in networks - connect computers and other devices within a network

whats true about circuit switching works when you are about to make a traditional based phone call

- when you pick up the receiver which creates an open connection for the local telephone switch - when the call is received a circuit is established and will remain open for the entire length of your call. as long as the circuit remains open, no one else can use the telephone line telephone switch - when you dial a number, then the switch connects to other switches along the PTSN. this forms a physical path between your phone and the person you are calling

which of the following should be considered when deciding whether or not to use cellular internet service at home?

- will multiple users be on logging onto the network? - if on a limited data plan, how much is typically uploaded/downloaded per month? - is a broadband (4G) cellular signal available?

which of the following should be considered when choosing an internet service provider (ISP)?

- will users be streaming data? - what ISP choices are available in my area? - how many users will be logged on my network at the same time?

also known as semantic web, web ___ is a distributed collection of "linked data" on the web that is structured to make searches more effective

3.0

the forerunner of today's internet was the DoD's

ARPAnet

the internet evolved from a department of defense funded project called ___, that attempted to link computers from 4 separate university networks

ARPAnet

A popular peer-to-peer file sharing protocol that allows users to share software, movies, and other files is ___

BitTorrent

Allowing the creation of the world Wide Web, ___ allowed users to send documents and images across networks.

Hypertext transfer protocol

A collection of computers that are connected in a small geographic area such as an office, college campus, or in your home is called a ___

LAN

a switch tracks which device within a network sent a request based on the device's ___ address

Mac

broadband is measured in

Mbps

A signal transmitted every few seconds by a wireless router so that user's computers can find identify the WiFi hotspot is called a ___

SSID

URL stands for

Uniform resource locator

when two or more LANs have been connected using a public network a ___ is created

WAN

the original protocol (standard) for WiFi security that was widely introduced in 1999 but replaced in 2003 was known as ___

WEP

in addition to activating ___ protection, it is also a good idea to disable your router's SSID transmission once your devices are connected

WPA2

WPA2 stands for WiFi protected ___ 2

access

ARPA (now called DARPA) stands for the

advanced research projects agency

network hyper texting was developed ___ the graphical user interface

after

web 3.0

also known as semantic web. makes searching for information easier

a local ___ network (LAN) is a collection of computers that are connected in a small geographic area such as an office, college campus, or in your home

area

remote access connections must be secured using authentication and encryption software. ___ software confirms the identity of the user pr computer system

authentication

the capacity of a particular transmission medium is called its

bandwidth

the capacity of a particular transmission medium is called its ___

bandwidth

a internet signal that has enough bandwidth to allow multiple computers to be connected to the same router is called a ___ signal

broadband

Because it uses the same wire the carries television signals, you usually won't have a choice regarding the ___ internet service provider in your neighborhood

cable

which might be a possible choice for internet service in your area

cable internet

put your router near the ___ of your house or apartment, because the router broadcast signals in equal strength in all directions

center

used by the PSTN ___ switching creates a dedicated physical path to send and receive information

circuit

used by the PTSN ___ switching creates a dedicated physical path to send and receive information

circuit

a computer that requests resources such as a web page, spreadsheet, image file, or services from another computer on a network is called a

client

web 2.0

cloud computing and interactive content become feasible. also known as the interactive web

Protocols for the world wide web are maintained and updated by the world wide web

consortium

what was the major question that ARPAnet wanted to solve?

could a network be built that would continue to work even if multiple parts of it collapsed?

NeXT's ___ computer capitalized on the graphical user interface

cube

when Steve jobs left apple, he joined with ross Perot and created the NeXT computer company. it's most famous product was the ___ computer

cube

rather than purchasing separate cable or DSL internet service for a home network, many individuals find it less expensive to add to their cellular ___ plan and only access the internet through their smartphone or tablet

data

the amount of video and music you're permitted to stream through your cell phone network is determined by your ___ plan

data

SAGE was developed by the US Department of

defense

(TLD) refers to the highest level in the ___ name hierarchy

domain

a ___ name identifies a server site on the internet

domain

most routers are designed to broadcast their waves slightly

down

A wireless router that transmits WiFi signals on 2 separate frequencies is a ___-band router

dual

the cable is most commonly used within a network is called ___ cable and is sold by category (CAT-7, for example)

ethernet

Top cable internet speeds are usually ___ than top DSL internet speeds

faster

a protocol commonly used to transfer large files from one server to another on the internet is the ___

file transfer protocol (FTP)

a ___ is a security system separating two networks or even computers on the same network

firewall

A public WiFi site is referred to as a

hotspot

the ___ protocol allows documents to be sent over computer networks

hypertext

although it sounds ironic, searching the ___ is usually an efficient way to find an ISP in your area

internet

ISP stands for

internet service provider

fiber optic internet service ___ available in most neighborhoods

is not

domain name example

mheducation.com

radio waves that transmit internet signals to and from satellites in space are called

microwaves

satellite internet service providers primarily use ___ to deliver internet signals

microwaves

a device in a network that coverts analog (wave) signals into binary (digital) signals and vice-versa is a ___

modem

the device in a network that converts analog (wave) signals into binary (digital) signals and vice vera is a

modem

fiber-optic cable is ___ expensive than coaxial (television cable to install)

more

A group of two or more devices/computers connected together to allow for the exchange and information and for the sharing of resources such as printers is called a

network

A group of two or more devices/computers connected together to allow for the exchange and information and for the sharing of resources such as printers is called a ___

network

a ___ is a group of two or more devices/computers connected together to allow for the exchange and information and for the sharing of resources such as printers

network

the network portion of an IP address which is also called the ___ identifier is indicated by a certain number of bits, starting with the left-most bit

network

by ensuring that transmissions can be sent even when several sits aren't working, ___ technology made the internet possible

packet switching

the bitTorrent protocol is often called peer-to-___ file sharing

peer

a ___, like adobe reader, is software that can be added to increase the functionality of a browser

plug-in

a virtual ___ network (VPN) creates a secure connection between 2 computers

private

WPA stands for WiFi ___ access

protected

Acronyms such as IP, FTP, HTTP, and HTTPS are examples of

protocols

if your internet download or upload speeds are lower than advertised, contact your internet service

provider

WiFi waves are basically ___ waves

radio

A particular file or server address on the World Wide Web is identified by its uniform ___ locator

resource

the device that connects 2 networks and often provides firewall protection is a

router

your ___ can provide hardware protection for your home network where it connects to your ISP's network just a ISP networks have firewalls were they connected to the internet

router

your ___ can provide hardware protection for your home network where it connects to your ISP's network, just as ISP networks have firewalls were they connect to the internet

router

a computer that provides resources and services to client computer is a

server

the device in a network that keeps track of connected devices MAC addresses and is usually incorporated in a router is the

switch

the device that allows several computers to use your home network with just one internet connection is called a

switch

DSL Internet service providers use ___ lines to bring you internet service

telephone

web 1.0

the web before blogs, wikis, and interactive media

___ (TLD) refers to the highest level on the domain name hierarchy

top level domain

to transmit large files from one server to another over the internet, many use the file ___ protocol

transfer

The BitTorrent protocol allows users to share large files over the internet

true

telephone wire is also called ___ pair wire

twisted

Sending files from your computer to server on the internet is called

uploading

a router's signal gets ___ as it travels further from the router

weaker

tim berbers-lee is most famous for leading the creation of the world wide

web

WEP stands for ___ equivalent protocol. WEP has been replaced by the far more secure WPA2 protocol

wired

hypertext made the ___ possible

world wide web