Tech guide 4 questions

1. Compare and contrast the main wired communications channels ?
(Ethernet & Fibre Optic) Fibre Optics consists of thousands of vary thin fragments of glass that transmit information via light pulses generated by lasers. They have a high bandwidth, relatively inexpensive and are difficult to tap into ensuring good security.

2. Describe the two technologies that enable users to send high-volume data over any network.
(ISDN & ADSL). Integrated Services Digital Network (ISDN) is an older international telephone standard for network access that uses existing telephone lines and allows users to transfer voice, video, image and data simultaneously. (ADSL)Provide high-speed data transmitting from homes and businesses over existing telephone lines. Because the existing lines are analog and the transmission is digital, you need a dsl modem.


3. What are the main business reasons for using network?
· Network computer systems allow organizations to be more flexible so that they can adapt to rapidly changing business conditions.
· Networks enable companies to share hardware, computer applications and data across the organization and among organizations.
· Networks make it possible for geographically dispersed employees and work groups to share documents, ideas and creative insights.

4. What is the difference between LANs and WANs?
LANs are a local area network they connect communications devices in a limited geographical region so all devices can communicate. WANs are a network, generally provided by common carriers, that covers a wide geographic area.

5. What is a network protocol?
Computing devices that are connected to the network access and share the network to transmit and receive data. They work together by adhering to a common set of rules that enable them to communicate with one another. This set of rules and procedures that govern transmission across a network is a protocol.

6. Describe TCP/IP protocol. TCP/IP Transmitting Control/Protocol.
A file transfer protocol that can send large files of information across sometimes unreliable networks with the assurance that the data will arrive un corrupted.

Tech Guide 5

1. Describe the various ways that you can connect to the Internet?
· Via an organizations LAN
· Connect with wire line or wireless connections
· An internet service provider (ISP)
· Internet kiosks.
· Cell phones and pagers
· (FTTH) Fibre to the home, involves placing fibre optic cable directly to individual homes.

2. Describe the parts of an Internet address.
· Domain Name: The name assigned to the internet site.
· Top-level domain: Com, edu, mil, gov, org
· TDL: indicating the type of organization that owns the site.


3.What are the roles of browsers? They are software applications through which users primarily access the web .

4.Describe the difference between the Internet and the World Wide Web?
· Internet: The massive network that connects computer networks of businesses, organizations and government agencies and schools all around the world, quickly, seamlessly and inexpensively.
· World Wide Web: a system of universally accepted standards for restoring, retrieving, formatting and displaying information via a client/server-architecture; uses the transport functions of the internet.