Networking and Connecting to the Internet
The Internet was based on a Department of Defense computer network called ___
ARPAnet
The forerunner of today's Internet was the DoD's (Department of Defense)
ARPAnet
ARPA (now called DARPA) stands for the ___
Advanced Research Projects Agency
The protocols that led to the development of the Internet were first used in a network called ARPAnet. ARPA (now called DARPA) stands for ___
Advanced Research Projects Agency
What is true regarding how IP addresses are determined?
An IP address is determined by the network on which it is hosted. All hosts on the same network share the same established network address, but are assigned a unique host number. Often IP addresses are structured and assigned by a service called a Dynamic Host Configuration Protocol (DHCP).
What is true regarding Internet Protocol (IP) addresses?
Assigned to your home network by your ISP. Means by which your network is identified by other servers and computers on the Internet. ISPs usually have blocks of IP addresses that they assign as demanded.
The amount of data that a transmission media can carry in a given amount of time is called the media's ___
Bandwidth
The volume of data that can be carried on an Internet transmission media in an amount of time is called __
Bandwidth
An Internet connection capable of supporting multiple devices at once is called a ___ connection.
Broadband
An Internet connection that has enough bandwidth to allow multiple computers to be connected to the same router is called a ___ connection
Broadband
Because it uses the same wire that carries television signals, you usually do not have a choice regarding the ___ Internet Service Provider uses in your neighborhood.
Cable
Which might be a possible choice for Internet service in your area?
Cable internet
What is true regarding dual-band routers?
Can transmit Wi-Fi signals in the 2.4 GHz frequency range Can transmit Wi-Fi signals in the 5.0 GHz frequency range Can minimize the Wi-Fi signal's interference from microwave ovens and car alarms
Television cable is also known as ___ cable.
Coaxial
What are commonly used Internet transmission media?
Coaxial (TV) cable, telephone wire, and Wi-Fi radio waves
What are commonly used Internet transmission media? (2)
Coaxial cable, ethernet cable, and fiber optic cable
SAGE was developed during the ___ War
Cold
What is true regarding switches?
Connect computers and other devices within a network Usually integrated in the routers of home networks Ensure correct data are transferred to and from the correct computers in networks
What statements are true regarding switches?
Connect computers and other devices within a network Usually integrated in the routers of home networks Ensure correct data are transferred to and from the correct computers in networks
Switch
Connects devices within a network
What are characteristics of a router?
Connects networks Provides hardware firewall protection Usually incorporates switches
Router
Connects two networks
Modem
Converts analog signals into digital signals, and digital signals into analog signals
If choosing between cable Internet or DSL Internet service, the Internet transmission medium that tends to provide the most consistent download speed is ___
DSL
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
SAGE was developed by the U.S. Department of ___
Defense
Of the following, the Internet service that tends to provide the most consistent speeds is ___.
Digital subscriber line (DSL).
What are considerations when determining your data and download speed requirements?
Do you play dynamic, interactive, first-player shooter type games? Do you like to stream video?
Routers that can send Internet signals over two distinct frequencies are called _____ routers
Dual-band
The cable that is most commonly used within a network is called ___ cable and is sold by category (CAT-7, for example)
Ethernet
The cable that is most commonly used within a network is called ___ cable and is sold by category (CAT-7, for example).
Ethernet
What are the characteristics of cellular service?
Fastest-growing means of accessing the Internet Allows mobile devices to access the Internet Many smartphones can convert cellular signals into Wi-Fi signals
Although it provides the fastest home Internet service,
Fiber-optic Internet service is limited in its availability.
The transmission media with the largest bandwidth is ___
Fiber-optic cable
The Internet is a global network of interconnected networks that uses what?
Hardware such as servers and routers. Software, specifically the Transmission control protocol/internet protocol (TCP/IP) suite of Internet protocols. Transmission media such as fiber optic cable and satellite (microwave) signals.
The _____ portion of an IP address is indicated by the remaining bits that are present after the network identifier and identify the host of the network.
Host
An IP address is determined by the network on which it is
Hosted
A Wi-Fi connection is often referred to as a ___ .
Hotspot
By having your smartphone send and receive Wi-Fi signals you are creating a mobile ___
Hotspot
What should be considered when choosing an Internet Service Provider (ISP)?
How many users will be logged on my network at the same time? Will users be streaming data? What ISP choices are available in my area?
When determining how much cell phone data you need it is important to consider which two of the following?
How much data you currently use? Do you use your phone to stream movies or TV?
The ___ protocol allows documents to be sent over computer networks.
Hypertext
Servers identify your router by its __ address.
IP
When you request information from a website such as Wikipedia, the way its server knows which router to send the requested information to is because your router is identified by its ___ address.
IP
What is true regarding an IP address?
IP stands for Internet Protocol. In most home networks IP addresses are assigned by the Internet Service Provider. If two laptops are connected to the same home network, they connect to the Internet through the same IP address.
MAC Address
Identifies a device within a network
ISP stands for:
Internet Service Provider
Although it sounds ironic, searching the ___
Internet is usually an efficient way to find an ISP in your area
What should be considered when deciding whether or not to use cellular Internet service at home?
Is a broadband (4G or 5G) cellular signal available? Will multiple users be logging onto the network? If on a limited data plan, how much data are typically uploaded/downloaded per month?
What are considerations for choosing fiber optic Internet service?
Is it available? Is the bandwidth necessary? Is it affordable?
Fiber-optic Internet service:
Is not available in all neighborhoods
Web 3.0
Known as semantic web. Made searching for information easier.
Web 2.0
Known as the interactive web. Made cloud computing and interactive content feasible.
What are examples of streaming?
Listening to Pandora Watching a Twitch stream Watching a movie on Netflix
A switch tracks which device within a network sent a request based on the device's ___ address
MAC
Every computer connected to a network has a network interface card that contains a unique ___ address, allowing the switch to identify it.
MAC
What are characteristics of fiber-optic lines?
Made of one or thousands of fibers High-speed transmission
Broadband is usually measured in __
Mbps
Radio waves that transmit Internet signals to and from satellites in space are called ___.
Microwaves
The device in a network that coverts analog (wave) signals into binary (digital) signals and vice-versa is a ___
Modem
The word "modem" stands for:
Modulator-Demodulator
Fiber-optic cable is ___ to install than coaxial (television) cable
More expensive
That Internet Service Providers (ISPs) cannot throttle (slow) data, or charge fees, from specific content providers (such as Netflix) is a concept known as ___
Net neutrality
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
The concept that Internet Service Providers (ISPs) permit data to be transmitted and accessed without regard to the data's content or amount of bandwidth required to transmit the data is known as net ___
Neutrality
IP Addresses are assigned by the Internet Corporation for Assigned Names and ___ (ICANN)
Numbers
What is true about the development of the Internet?
One of ARPAnet's challenges was to ensure that if individual computers or networks failed, the overall network would continue to operate. Paul Baran developed packet switching.
Telephones were connected using circuit switching while the Internet uses ___ switching
Packet
By ensuring that transmissions can be sent even when several sites are not working, ___ technology made the Internet possible
Packet switching
The redundancy of Internet connectivity is based on a technology called ___
Packet switching
What is true regarding the history of the Internet?
Packet switching allows a message to be divided into many packets rather than traveling on one phone circuit. ARPA hired MIT Professor J.C.R. Licklider to connect computer networks of four universities. ARPAnet was built to ensure that if individual networks or computers fail, ARPAnet would still be functional.
Information is transferred over the Internet in small data groupings called ___
Packets
Packet-switched networks break information into units called ___
Packets
Digital subscriber line (DSL) Internet service providers use ___ lines to bring you Internet service
Phone
A request for an electronic "echo" or response from another computer or server is called a ___.
Ping
The device that connects two networks and often provides firewall protection is a ___
Router
Using microwaves to transmit signals, ___ Internet Service can provide broadband connectivity virtually anywhere.
Satellite
Data on the Internet is usually stored on specialized computers called ___
Servers
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
Paul Baran developed packet ___ in hopes of making Semi-automatic ground environment (SAGE) less vulnerable
Switching
Web 1.0
The web before blogs, wikis, and interactive media.
The specific means by which your Internet signal is carried is called its ___ media
Transmission
Your Internet signal is carried on a ___
Transmission media
The central controlling agency of the Internet is:
Trick question - the Internet has no central controlling agency
If possible, it is often a good idea to ask your neighbors what ISP works best in your area when purchasing Internet service. T or F?
True
Some cell phone carriers that promise "unlimited data" will actually limit your high-speed 4G LTE data to a couple of gigabytes per month. T or F?
True
Telephone wire is also called ___ pair wire
Twisted
What is 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 Wi-Fi signals, allowing them to become hotspots.
Cable
Uses coaxial cable , Choice, Usually higher top speeds though often inconsistent Usually higher top speeds though often inconsistent , Choice, Often bundled with television Often bundled with television
DSL
Uses existing phone lines as transmission medium , Choice, Speeds and bandwidths tend to be consistent Speeds and bandwidths tend to be consistent , Choice, Often bundled with telephone service Often bundled with telephone service
What is true regarding satellite Internet service?
Uses microwaves to deliver service Provides broadband service virtually anywhere Customers usually purchase a data plan that limits uploading and downloading
What is true regarding cable Internet service?
Uses the same coaxial cable that brings the cable television signal Usually has more bandwidth than DSL lines Internet service can often be bundled with television service
What is true regarding how circuit switching works when you make a traditional land line based phone call?
When you pick up the receiver it creates an open connection to the local telephone switch. When you dial a number, then the switch connects to other switches along the public switched telephone network (PSTN). This forms a physical path between your phone and the person you are calling. 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.
What is true regarding IP addresses?
When you purchase your Internet service from an ISP you receive the right to use their block of assigned addresses. IP Addresses are assigned by the Internet Corporation for Assigned Names and Numbers (ICANN).
Hypertext made the ___ .
World Wide Web possible
What are the common reasons for purchasing broadband Internet service?
You have several devices online at the same time. You want to stream music or video. You need relatively high-speed Internet service.
The fastest growing Internet Service Provider media is __.
cellular Internet service
Which organization manages domain names and Internet Protocol (IP) addresses on the Internet?
the Internet Corporation of Assigned Names and Numbers (ICANN)
For a network to connect to the Internet, it must use the ___ suite of protocols
transmission control protocol/Internet protocol (TCP/IP)
