14. What are the advantages and disadvantages of using a network in general? How can you minimize the disadvantages?

A user can logon to a computer anywhere on the network and access their work files from the file server. Computers can be managed centrally - with the same software installed on each one. Time - it is much faster to install an application once on a network - and copy it across the network to every workstation. Sharing printers, plotters, modems etc saves money and time. Security - the Network Manager can allocate usernames and passwords to all users to try to prevent unauthorized access. It is easy and convenient to monitor users - for example websites visited or documents printed - this can be done using software running on the server.

But! If something goes wrong with the file server the whole network is unable to operate. The technical skills needed to manage a network are much higher than working on a stand-alone computer. It would take a long time to install software applications on each computer - one at a time! It can be frustrating to print to a printer in another room - and then find after a long trek - that there is no paper in the printer! Users may use up too much of the storage space and this may cause problems on the network. Users may use too much bandwidth - for example when listening to music files or watching video clips - preventing others from using the network facilities properly.

15. What are the main network topologies? Which one is better to use for which purpose?

A bus network: all nodes are connected to a common medium along this medium.

A star network: all nodes are connected to a special central node. This is the typical layout found in a Wireless LAN, where each wireless client connects to the central Wireless access point.

A ring network: each node is connected to its left and right neighbour node, such that all nodes are connected and that each node can reach each other node by traversing nodes left- or rightwards. The Fiber Distributed Data Interface (FDDI) made use of such a topology.

A mesh network: each node is connected to an arbitrary number of neighbours in such a way that there is at least one traversal from any node to any other.

A fully connected network: each node is connected to every other node in the network.

16. What do you think is a well-designed webpage? In your opinion, what should you do to make a webpage successful?

Well-designed webpage helps people get useful information quickly. Webpage must not scare users; user must not waste time for finding information. What I should do… first of all

17. What are the most important/useful Internet services in your opinion? Give reasons why.

I think that the most important services are the services connected with education. It can be a search engine like Google or Yandex which can help in searching for necessary information. Using these services you can find almost everything you need for different subjects. I use mail services as well. Nowadays it is an integral part of people's work life and private life as well. Google Translate always helps me with my English tasks, it is a very efficient translation machine. And of course I use social networks to communicate with my friends from the whole world.

18. What network technologies will be used in the future in your opinion? Give some examples or reasons.

19. What is Web 2.0 era? What are its main features? In your opinion, does it have more positive or negative sides?

Web 2.0 is a loosely defined intersection of web application features that facilitate participatory information sharing, interoperability, user-centered design,and collaboration on the World Wide Web. A Web 2.0 site allows users to interact and collaborate with each other in a social media dialogue as creators of user-generated content in a virtual community, in contrast to websites where users are limited to the passive viewing of content that was created for them. Examples of Web 2.0 include social networking sites, blogs, wikis, video sharing sites, hosted services, web applications, mashups and folksonomies.