Networking

Which 3 of the following are commonly used Internet transmission media?

(a) Coaxial (TV) cable (b) Telephone wire (d) Wi-Fi radio waves

Which three of the following are commonly used Internet transmission media?

(a) Coaxial cable (b) Ethernet cable (c) Fiber optic cable

Which three of the following statements are true regarding packet switching?

- The Internet uses packet switching to transfer data and information between hosts. - Addressing information and data are included each packet. - All packets are routed through a network based on the associated address information.

Put these steps in the proper order to explain communication over the Internet.

1. Assemble the data packet. 2. Correct domain name is identified (e.g., www.amazon.com). A domain name is a unique name affiliated with an IP address. 3. Look up IP address. Domain name system (DNS) are used to simplify the process. 4. IP (Internet Protocol) Address is added to the packet. 5. Transmission Control Protocol (TCP). TCP is an Internet protocol that ensures delivery of packets. 6. Message is sent/shipped using a variety of different carriers (ISPs). Often message "hop" or move from one network to another.

Which 3 of the following are true regarding Wi-Fi?

1. Multiple devices can be connected to one signal. 2. Transmit Internet signals via radio waves. 3. Transmission connections are known as hotspots.

Put the steps for how circuit switching works when placing a land line based phone call in the correct order.

1. Pick up the receiver which creates an open connection to the local telephone switch. 2. Dial a number, then the switch connects to other switches along the PSTN. 3. When the call is received, a circuit is established and will remain open for the entire length of your call. 4. Once you hang up the phone, the circuit is disconnected, and the switches and wire pathways that had been dedicated to your phone call are now free again for other people to use.

While the Internet is the worldwide system of networks that use the Transmission Control Protocol/Internet Protocol (TCP/IP) to connect users, Internet2 refers to:

A consortium of government, educational, and research organizations that seek to ensure that students, researchers, and teachers have access to fast, reliable Internet service.

The Internet evolved from a Department of Defense funded project called —, that attempted to link computers from four separate university networks.

ARPAnet

ARPA (now called DARPA) stands for the ___

Advanced Research Projects Agency

Which three of the following statements are 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.

Which of the following Ethernet cables has the largest bandwidth?

CAT 7 cable

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

Which three of the following 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

Which three of the following are characteristics of a router?

Connects networks Provides hardware firewall protection Usually incorporates switches

What was the major question that ARPAnet wanted to solve?

Could a network be built that would continue to work even if multiple parts collapsed?

Categorize the following between either digital subscriber line (DSL) or Cable Internet Service.

DSL: Speeds and bandwidths tend to be consistent Uses existing phone lines as transmission medium Often bundled with telephone service Cable: Usually higher top speeds though often inconsistent Often bundled with television Uses a coaxial cable

Select all of the characteristics that explain how the Internet works:

Data on the Internet is usually stored on specialized computers called servers. The connections points in the Internet are called nodes. Data is transferred from one network to another network through hardware called routers.

Of the following, the Internet service that tends to provide the most consistent speeds is —.

Digital Subscriber Line (DSL)

Which 2 of the following are considerations when determining your data and download speed requirements?

Do you like to stream video? Do you play dynamic, interactive, first-player shooter type games?

A wireless router that transmits Wi-Fi signals on two separate frequencies is a — - band router

Dual

Which of the following are characteristics of cellular service?

Fastest-growing means of accessing the Internet Allows mobile devices to access the Internet Many smartphones can convert cellular signals to Wi-Fi signals

Which of the following three are Internet service options?

Fiber Optic Cable Satellite

If available, your highest speed Internet option is going to be — service.

Fiber-optic

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 backbone of the Internet2 network offers speeds in excess of 1000Gbps. Gbps stands for:

Gigabits per second

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

One thing to consider when deciding whether you need an unlimited data plan, is whether you plan to use your phone as a mobile —.

Hotspot

When determining how much cell phone data you need it is important to consider which three of the following?

How much data you currently use? Do you use your phone to stream movies or TV? Do you plan to use your smartphone as a hotspot?

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

Which three of the following statements are 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.

Which three of the following are true regarding troubleshooting network hardware issues?

If your network is not working, it is a good idea to check the status of the indicator lights. Sometimes firmware updates can occur that can cause a network outage. If you experience trouble you may need to reboot the hardware device. A device that is not positioned properly can cause week signals and system issues.

For — it may be less expensive to add an existing cell phone data plan and to use the phone as a hotspot than to add wired Internet service.

Individual users

Servers identify your router by its __ address.

Internet Protocol (IP)

Which three of the following 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?

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

MAC

Every computer connected to a network had a network interface card that contains a unique — address, allowing the switch to identify it.

MAC

Which of the following are characteristics of fiber-optic lines?

Made of 1 or thousands of fibers High-speed transmission

Broadband is usually measured in __.

Mbps

Capable of sending Internet signals tens of thousands of miles in a straight line, — are used with satellites.

Microwaves

Satellite Internet service providers primarily use — to deliver Internet signals.

Microwaves

The word "modem" stands for:

Modulator-Demodulator

Fiber-optic cable is — to install than coaxial (telephone) cable.

More expensive

The 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 concept that the Internet Service Providers (ISPs) permit data to be transmitted and accessed without regard to the amount of bandwidth required to transmit the data is known as net —.

Neutrality

By ensuring that transmissions can be sent even when several sites are not working, — technology made the Internet possible.

Packet switching

Which THREE of the following statements are 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.

Which two of the following statements are true about the development of the Internet?

Paul Baran developed packet switching. One of ARPAnet's challenges was to ensure that if individual computers or networks failed, the overall network would continue to operate.

A set of rules or agreements for communication between devices that determine how data are transmitted and received is called __.

Protocols

IP, FTP, HTTP, and HTTPS are all acronyms that describe different

Protocols

ISP stands for Internet Service —.

Providers

Your — provides a firewall protection for your home network. It connects your home network to your ISP's network.

Router

A signal transmitted every few seconds by a wireless router so that user's computers can identify the Wi-fi hotspot is called a(n):

SSID

Your home network's Wi-Fi name is its —, and is transmitted by your wireless router every few seconds unless you turn it off.

SSID

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

Switch

Digital subscriber line (DSL) internet service providers use — to bring you internet service.

Telephone lines

The central controlling agency of the Internet is:

Trick question - the Internet has no central controlling agency

Many 4G and 5G cellular Internet Service Providers offer a device that serves as a hotspot for your home and includes an integrated modem and router.

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.

True

Which three of the following statements 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 Wi-Fi signals, allowing them to become hotspots.

Which three of the following statements are 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

Which two of the following statements are true regarding digital subscriber line (DSL) Internet service?

Uses telephone wires as transmission wires Internet signal tends to be very consistent

Which three of the following statements are 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

The original protocol (standard) for Wi-Fi security that was widely introduced in 1999 but replaced in 2003 was known as —.

WEP

The standard for wireless network privacy and protection is known as ________.

WPA2

The standard for wireless Ethernet networks is know as —.

Wi-Fi

Many cellular ISPs offer modem/router combination devices that can create a _____ wherever there's adequate cell service.

Wi-Fi hotspot

Which three of the following 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 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 that has enough bandwidth to allow multiple computers to be connected to the same router is called a — connection.

broadband

Used by the public switched telephone network (PSTN), ______ switching creates a dedicated physical path to send and receive information

circuit

Sage was developed during the _____ war.

cold

SAGE was developed by the U.S. Department of ________.

defense

Transferring a file from the Internet to your digital device is called _____.

downloading

Routers that can send Internet signals over 2 distinct frequencies are called _____ routers.

dual band

A security system separating two networks or even computers on the same network is a —.

firewall

A public Wi-Fi site is referred to as a ___.

hotspot

The network that encompasses all the networks around the world that are connected to each other using TCP/IP is referred to as the —.

internet

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 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

Telephones were connected using circuit switching while the Internet uses ___ switching

packet

The redundancy of Internet connectivity is based on a technology called —.

packet switching

Information is transferred over the Internet in small data groupings called —.

packets

A request for an electronic "echo" or response from another computer or server is called a ____.

ping

WPA stands for Wi-Fi ______ access

protected

The device that divides and connects two networks is a —.

router

Data on the Internet is usually stored on specialized computers called ___.

servers

Watching or listening to a file on the Internet without saving or copying it first is called:

streaming

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

Domain names and IP addresses on the Internet are managed by ___

the Internet Corporation of Assigned Names and Numbers (ICANN)

A popular protocol (procedure) for sharing large files such as movies, TV shows, and music via the Internet is Bit

torrent

The specific means by which your Internet signal is carried is called its ___ media

transmission

For a network to connect to the Internet, it must use the — suite of protocols.

transmission control protocol/Internet protocol (TCP/IP)

Your Internet signal is carried on a —.

transmission media

Telephone wire is also called ____ pair wire.

twisted

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

wired