Intermediate 2 Homework Sheets
Computer Systems 4
Networks
1. What do the letters LAN stand for?2. What is a LAN?
3. What do the letters WAN stand for?
4. What is a WAN?
5. What is broadband?
6. Explain a client/server network by drawing a diagram.
7. List six advantages of a network
8. What is a browser?
9. What is a hyperlink?
10. What is a search engine?
11. What happens when you click on a hyperlink?
12. How do search engines such as Google and Yahoo manage to find websites for you so quickly?
13. Look at this email address:
What is the user name of the person?
14. What is the address book in an email program?
15. What is a mailing list?
16. List two rights an individual has under the Data Protection act of 1998
17. List four responsibilities a data controller has under the Data Protection Act of 1998. / Local Area Network
1 Mark
A LAN is a group of networked computers in close proximity to each other, e.g. an office building, a school or a house.
1 Mark
Wide Area Network
1 Mark
A WAN is a group of networked computers spread over a large geographic area, e.g. a state, province or country.
1 Mark
Broadband is a communications network in which the bandwidth is very large allowing data to be transferred very quickly across the network.
1 Mark
Local Area Network
workstation workstation
printer server
workstation workstation
▫ Tampering with programs and files is prevented through restricted access rights
▫ Personal work is saved in private spaces on hard disks that are password protected from inadvertent or malicious copying and/or deletion.
▫ Data files, programs and peripheral devices can be shared
▫ Communication is improved via e-mail/chat/bulletin boards
▫ Centralised backup of files
▫ Stations can be managed remotely.
1 Marks each, Max 6 Marks.
A browser is a program that allows a user to read and navigate web pages.
1 Mark
A hyperlink is text or an image on a webpage that allow any page on the web to connect to any other.
1 Mark
A search engine is a feature that will search the WWW for particular web pages that contain the word or word(s) entered by the user.
Any other valid answer
Do not accept proprietary names, e.g. Google
1 Mark
When you click on a hyperlink the browser will load the URL of the page it is seeking and try to find it on the web.
1 Mark
A search engine regularly sends runs programs called “web crawlers”. They gather information about what pages are on the internet. It stores this information on the search engine site in a database. So when you enter a search you are really searching the database for words that match your entry not the entire web.
2 Marks
leesmith
1 Mark
An e-mail address book allows you to stored peoples email addresses in an electronic address book so you do not have to type the address yourself every time you use it. You can just select it from your address book.
1 Mark
A mailing list is pre-prepared lists that includes addresses of the people whom you whish to send messages to. This saves you having to type in several addresses as you can select the mailing list instead.
1 Mark
▫ To view a copy of the data being held on them
▫ To have any inaccurate data corrected
1 Mark per point. Max 2 Marks.
▫ Ensure that the data is accurate, up-to-date and relevant
▫ Allow access to the data if requested by a data subject
▫ Change information that is incorrect
▫ Store data securely
1 Mark each. Max 4 Marks.
Networking Past Exam Questions
1. Here is part of an advertisement taken from a computer magazine.(See paper for advert.)
Computers in large offices are normally linked together in a network.
Describe two advantages of having networked computers.
2. (a) Mary is collecting information for a school project. She uses her home computer to search the internet.
i. What type of software will Mary use to connect her computer to the Internet?
ii. Mary downloads a file that contains sound and video. Mary is unable to run this file on her computer.
Give one reason why this file might not run and offer a possible solution.
3. Sarah is the owner of a sports shop. She wants to computerise her shop and offer the following facilities to staff and customers.
· Access to the Internet for sports information and online orders
· Monitoring of sales for stock control
· Increasing speed of sales at the checkout
· Six electronic tills located around the store
Sarah contacts a local software house to discuss the implementation of such a system.
The computers in the shop are to be networked.
Give two benefits of using networked machines rather that single-user machines
4. A law firm that has been using single user computer systems is now considering introducing networked systems.
a. State two advantages to the law firm of using networked systems rather than single user systems.
b. One copy of the text processor software is stored on the file server. Many users of the network access this text processor software at the same time. What should the firm do to keep within the law when accessing this software?
5. Margaret has purchased a computer system to create multimedia presentations. The computer system came with a variety of application software and peripheral devices.
a. Margaret’s computer is connected to the internet. She finds a site with useful graphics. What legal requirements must be met before she can use these graphics?
6. Harpreet has bought a new printer and a box of floppy disks. He has to create a picture on the computer that he wishes to save and print.
He knows that there are ethical issues that arise when using his computer system to access the Internet.
Suggest one ethical issue that might arise from the use of a computer system for this purpose. / ▫ Tampering with programs and files is prevented through restricted access rights
▫ Personal work is saved in private spaces on hard disks that are password protected from inadvertent or malicious copying and/or deletion.
▫ Data files, programs and peripheral devices can be shared
▫ Communication is improved via e-mail/chat/bulletin boards
▫ Centralised backup of files
▫ Stations can be managed remotely.
1 Mark each. Max 2 marks
Browser software
1 Mark
Her processor may be too slow
She might not have enough RAM memory
She might not have the relevant software
Any other relevant answer
She should upgrade her computer
1 Mark for reason. 1 Mark for solution. Max 2 Marks
▫ Tampering with programs and files is prevented through restricted access rights
▫ Personal work is saved in private spaces on hard disks that are password protected from inadvertent or malicious copying and/or deletion.
▫ Data files, programs and peripheral devices can be shared
▫ Communication is improved via e-mail/chat/bulletin boards
▫ Centralised backup of files
▫ Stations can be managed remotely.
▫ Any other relevant answer
Max 2 marks
▫ Tampering with programs and files is prevented through restricted access rights
▫ Personal work is saved in private spaces on hard disks that are password protected from inadvertent or malicious copying and/or deletion.
▫ Data files, programs and peripheral devices can be shared
▫ Communication is improved via e-mail/chat/bulletin boards
▫ Centralised backup of files
▫ Stations can be managed remotely.
Max 2 marks
Have relevant licenses
1 Marks
She must ask the internet site owner permission to use the graphics.
1 Mark
He must have permission to download any pictures.
Any other suitable answer.
1Mark.