Network Components, Types, and Connections (Module 2)

What is a service that provides high bandwidth, always on, connection using existing land-line telephone wires?

A Digital Subscriber Line (DSL) connection is a service that provides high bandwidth, always on, connection using existing land-line telephone wires.

What is an internet service that uses mobile phone networks to transmit data?

A cellular data plan is an internet service that uses mobile phone networks to transmit data.

Example of intermediary devices.

An intermediary device sends network messages toward a final destination. Examples of intermediary devices include a firewall, router, switch, multilayer switch, and wireless router.

What is a service that provides an internet data signal on the same network that delivers broadcast television and phone service?

Cable internet provides an internet data signal on the same network that delivers broadcast television and phone service.

A smart phone uses web browser software to request and display a web page. The smart phone is considered what type of computer?

Client

A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?

DSL is the best technology to use over existing phone lines. A lot of ISPs have a lookup on their website where you can enter your phone number and see if they can offer you service.

What is the source or destination of a message transmitted over the network

End device (or Host)

What are two functions of end devices on a network? (Choose two.)

End devices originate the data that flows through the network. Intermediary devices direct data over alternate paths in the event of link failures and filter the flow of data to enhance security. Network media provide the channel through which network messages travel.

Which term correctly describes the function of an ISP?

ISP stands for internet Service Provider. An ISP is responsible for providing the link between a private network, such as a home or business network, and the internet.

Describe a peer-to-peer network.

In a peer-to-peer network there is no centralized or dedicated server. A user computer can be a client to request service from another user computer and a server to share a network resource (such as a printer) to other users.

Provides the link between the home network and the internet

Internet Service Provider (ISP)

What is a characteristic of a peer-to-peer application?

Peer-to-peer networks exist directly between client devices, with no centralized resources or authentication. Hybrid peer-to-peer systems also exist that decentralize resource sharing but can use centralized indexes to point to the resource locations.

What type of internet connection would be best for a residence in a remote area without mobile phone coverage or wired connectivity?

Satellite internet service provides the best option for a home user that would otherwise have no internet connectivity at all. Cellular internet is only available in areas with mobile phone coverage.

A computer that has software installed to provide information such as email or web pages to other devices is known as a:

Server

Which term is used to describe a network device with the primary function of providing information to other devices?

Servers are devices with software installed that allows them to provide information, like web pages or email.

Marjani lives on a farm several kilometers outside of Msolwa, Tanzania. Which of the following end devices is she most likely to use to connect to the internet? (chose two)

Smart Phone, Tablet (In rural areas that do not have a wired telecommunications infrastructure, wireless access through a cellular service is often the only choice for internet access. Choices for Marjani include a smartphone or tablet).

Rosalía works as a community health worker in Rio Claro, Brazil. Most of her time is spent making home visits to provide primary care to people in her community. However, she requires internet access to maintain her patient records and provide videoconferencing with a doctor, when needed. What end device and media type does Rosalía most likely use? (chose two)

Tablet, Wireless Media (Community health workers that travel from home to home during their daily rounds depend heavily on wireless access. Therefore, Rosalía would most likely use a tablet and wireless media to connect to the internet for updating medical records and videoconferencing with other a doctor, when needed).

What type of network is defined by two computers that can both send and receive requests for resources?

The simplest form of peer-to-peer networking consists of two computers that are directly connected to each other through the use of a wired or wireless connection.

What are some advantages of the peer-to-peer network model?

The simplest peer-to-peer network consists of two computers that are directly connected to each other through the use of a wired or wireless connection. The advantages of peer-to-peer networking include ease of setup, lower cost, and less complexity.

Eilert recently got a job with a computer support services company in his hometown of Falun, Sweden. A customer has asked for someone to come connect their home network to the internet. They only have a cable modem. Which of the following intermediary devices would Eilert most likely take with him to the job?

Wireless Router. (Home networks typically connect to the Internet Service Provider using a modem and a router with wireless capabilities. Sometimes these two devices are combined into one device. In this scenario, Eilert will need to bring the wireless router to the customer's home as they only have the modem).

A network where two computers are communicating with each other as both a client and as a server is known as a:

peer-to-peer network