Exam Time for IT. Ч.1. Практикум

various types, cellular radio, or wireless local loop (IEEE 802.16) all have advantages and disadvantages. Depending on the type of mobility needed, the relevant standards may come from the IETF or the ITU.

Network Topology

The network topology defines the way in which computers,printers, and other devices are connected, physically and logically. A network topology describes the layout of the wire and devices as well as the paths used by data transmissions. Commonly used topologies include:

The network topologies mentioned above are only a general representation of the kinds of topologies used in computer network and are considered to be basic topologies.

Questions for self-check:

How are all networks interconnected?

How do users’ and network administrators’ views differ?

What are network subdivisions considering its trust and scope characteristics?

What kinds of communications are held over the Internet?

What does a local area network represent? Characterize each method of networking depending on the number of people who use a Local Area Network.

What does a wide area network involve?

How can metropolitan area network be characterized?

Is a wireless network basically the same as a LAN or a WAN? Why?

What do commonly used topologies include?

Exercises:

1. Give Russian equivalents of the following words and expressions:

coaxal; business-to-business; mesh; wire cable; aggregate; content provider; cellular radio; local loop; twisted-pair cable; scope; connotation; gateway; intranet; peer-to- peer technology; hub; extranet.

2. Translate the words/expressions into English:

масштаб; размещение, расположение; вероятный, возможный; сотовая система радиосвязи; концентратор; межкорпоративная электронная торговля; интрасеть; поставщик онлайновой информации; сетка; собирать, соединять; подтекст, скрытый смысл; шлюз; абонентская линия; витая пара (два скрученных изолированных провода); имеющий общую ось; расширенная интрасеть; стальной (сталепроволочный) трос; технология одноранговой (прямой) связи

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