Questions and Answers of Computer Communications

2. Discuss the reasons why Camelot use their own WAN for collecting data from shops rather than linking into the Internet.
1. What data needs to be transmitted from a lottery network station to the central computer?
2. Discuss the benefits and disadvantages to the designers of having Internet access.
1. The team have to decide whether to install a peer-to-peer or a server-based network. Discuss the issues involved.
2. There can be problems with communicating using ICT. Explain three disadvantages of using ICT for communication.
1. How can the company use ICT to enable effective and efficient communication? (9)
3, See other examples of videoconferencing athttp://www.videoconferencing.com.
2. Find out more about videoconferencing in schools at http://www.global-leap.org.
1. What are the benefits of videoconferencing for schools?
2. Summarise the benefits and limitations to an organisation of using email?
1. Describe five other features of email.
2. Find three further examples of the use of EDI.
1. Explain in your own words the term “EDI”.
3. Why is important to carry out re-imaging on a regular basis in such circumstances?
2. What actions should Natalia take before handing her laptop to the ICT team?
1. What are the advantages to the school and to Natalia of issuing her with a laptop computer?
4. What is Wi-Fi?
3. What is a “pop-up blocker” and why is it needed?
2. What is the role of firewall software?
1. What is a “Home Hub”?
3. Discuss the benefits and problems of the growth of social-networking software.
2. Prepare a tutorial using presentation software on the use of socialnetworking software.
1. Choose three friends or neighbours who have a computer with Internet access. Try to select people from different age ranges. Ask each person to keep a log of what use they make of their computer
9. Changes in technology now mean that it is no longer necessary to have a PC to be able to use some Internet services. Describe other ways that Internet services can be accessed.
8. A retail company has decided to set up an intranet for the use of its employees and enable certain information to be available on an extranet.a) Explain what is meant by the term extranet. (2)b)
7. Explain the difference between a client–server and a peer-to-peer network. (6)
6. A children’s toy retailer has decided to set up an online store.a) Explain two advantages to the retailer of using this method of selling as opposed to selling from a high street shop. (4)b)
5. A company that makes squash racquets intends to set up a website to advertise its range of products and to take orders online.a) Describe two ways in which the company could use the facilities
4. A British company has offices in California and New Zealand. Describe three ways in which the company can use the Internet to communicate with its offices abroad.(6)
3. Home users access the Internet to search the Web for information and send emails to their friends. Describe other ways in which a home user might make use of the Internet. (10)
2. Describe the basic elements of an ICT network. (8)
1. Explain the difference between the Internet and the Web. (4)
3. What information could be made accessible to employees of WHSmith on a company-wide intranet?
2. What other ways could the extranet be used?
1. What advantages, other than cost savings, could the use of the extranet bring?
2. Explain how an intranet could be used by a school or college and describe the information that could be stored on it.
1. Explain the difference between an intranet and the Internet.
2. List the benefits to AquaPress of selling online. Include those benefits discussed in the case study as well as any others you can think of.
1. Investigate AquaPress’s website at http://www.aquapress.co.uk.What features can you find?
2. Another price comparison site is http://www.kelkoo.co.uk, which allows a user to find out the price of a product, such as a DVD, from a large number of online suppliers. Explore the range of
1. Explore Uswitch on http://www.www-uswitch.com. Find out how much your family pay for one or more of the services. Using the website, find out if your family could save money by switching to a
4. Explain in your own words what a home user needs to access IPTV.
3. Give some examples of situations when an individual could benefit from IPTV.
2. What benefits does IPTV have for a viewer?
1. What is Freeview?
4. Can you think of any further functions that could be added in the future to improve the use of PDAs?
3. Research and describe other functions offered by PDAs currently on the market.
2. What drawbacks are there for David in having a PDA issued by his employer?
1. Why is email a better method than telephone for communicating with colleagues in New York and Tokyo?
5. A good leader is a major factor of a successful ICT team.State three further characteristics needed by a successful ICT team and for each explain why it is needed
4. A systems analyst developing a new ICT system has to work with clients who have little, or no, understanding of ICT. State two personal qualities that the systems analyst should have that will
3. Many retailers are expanding their e-commerce operations.a) Identify one current job for which ICT professionals are being recruited within e-commerce. (1)b) All ICT professionals require certain
2. A company wishes to recruit a new member for its ICT help-desk team. You have been asked to write a job description for the role. Explain two personal qualities that are relevant to the job which
1. An important part of the development of an ICT solution is the production of documentation for its users. Describe two personal skills that are needed by an ICT professional when producing user
3. Why were junior team members allocated to testing?
2. How did Sophie maintain control of the project?
1. Give the reasons that ensured that the project was implemented successfully.
2. Describe three personal characteristics that are essential for Sam in his job of Web developer.
1. Find out more about e-commerce (see Chapter 17 or try http://www.howstuffworks.com).
2. Itemise the personal qualities that you possess which would show that you are suitable for employment. Back up each quality that you list with evidence to support your claim. For example, you
1. Prepare a list of your ICT skills and knowledge.
5. Find out the five most frequent problems dealt with by the school or college help desk.
4. Describe any help-desk facilities available at your school or college.
3. Explain why effective team working is necessary for the help desk to run efficiently. Think of some ideas of your own as well as the factors discussed in the case study.
2. Why is instant messaging an appropriate means of communication in this instance?
1. Explain the term “instant messaging”.
5. The owners of a small business that sells badges have decided to start selling their products online. They will collect order data from their customers using an onscreen form at their website.
4. WIMP (windows, icons, menus and pointers) interfaces are commonly in use by software packages on personal computers. Name two other types of interface and discuss the benefits and limitations of
3. An Internet search engine is said to have a naturallanguage interface. Discuss the benefits and limitations of using a natural-language interface. (6)
2. Explain what is meant by the term “command-line interface”. (2)
1. Most modern PCs make use of a graphical user interface(GUI). Describe four characteristics of a GUI. (8)
3. Design a menu structure for an MP3 player or a digital camera.
2. Would you make any changes to the structure of the menu to make it more easy for you to use?
1. Draw a diagram to show the sub-menus on your mobile phone.
6. ICT systems are designed for and used by people. Discuss how the characteristics of users may vary?
5. A user purchases a copy of a widely used spreadsheet package from a computer store. Describe three methods of gaining support from sources other than the software’s manufacturer. (6)
4. A mail-order company receives orders from its customers, handwritten on pre-printed forms. These are then used by clerks to enter the data into a computerised system. A sample blank customer order
3. A new employee of a company is unfamiliar with the word-processing software used by the company.a) Describe the help facilities that she would expect to find as part of the software. (6)b) Discuss
2. Describe how the interface between a computer and a human can be designed to provide an effective dialogue. (9)
1. After logging in to a network, the desktop screen appears as shown in Figure 14.7. Describe three ways in which this screen provides an effective human–computer interface.
3. What are the advantages of ordering goods online?
2. Some customers choose to order face to face or by telephone because they worry that the web site may not be secure, which could result in a third party getting hold of their credit card
1. Draw up and complete a table similar to the one for online class registration.
6. Explain what features of the ICT system make it easy for occasional users and thus promote good customer management.
5. Discuss how well each of the ten rules for good interface design has been met by this website.
4. Explore the help facilities offered. How useful would they be to a customer?
3. What steps does World Vision take to ensure that customers’personal data is kept safe and secure?
2. How and why is personal data stored?
1. What promises does World Vision make concerning personal data?
10. Use the same name throughout for the same thing. For example, stick to the word “save” and don’t use “keep”, “store” or “write”.
9. Keep the level of complexity appropriate to the experience of the expected user. If the level is too high, the user will become confused. If it is too low, the user will be bored and make errors
8. Make sure that the choices in a menu are easily distinguished from each other. Leave plenty of blank space between them.
7. Whenever the user is deleting work or closing a program, confirm all requests for action from the user; for example, “Are you sure? Y/N”.
6. Don’t use jargon, particularly with inexperienced users.
5. Start at the top left of the page and work down.
4. Make sure your text is not too big or too small. Stick to one clear font. If possible, offer the user the option to change the size of the text.
3. Make good use of colour and contrast. Do not, for example, use red on a green background: people with colour blindness cannot differentiate between them.
2. Put features such as headings, error messages and requests for user responses in a consistent location.
1. All system interfaces should be consistent and should look, act and feel the same throughout. Keep the layout clear. Too much on one screen will make it cluttered and confusing.
2. Identify three ICT systems that you have used only a few times. For each, describe how easy the system was to use and identify the features that made it so. Suggest any improvements that could be

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