PHS CyberSchool

Computer Studies SG Grade 11

Theory examination May 2005 - 90 minutes - 80 marks

Question 1 - Multiple-choice questions - 1 mark each - 15 marks

1. On the motherboard (the) … is the temporary computer memory area in which data can be stored.
   1. expansion slot
   2. math co-processor
   3. RAM
2. The communication bus which is used to fetch the address of an instruction from memory is called the …
   1. address bus
   2. control bus
   3. data bus
   4. fetch bus
3. Two examples of ... are cable television lines and telephone lines. 
   1. communication channels 
   2. communication devices 
   3. receiving devices 
   4. sending devices 
4. Read Only Memory (ROM)
   1. Is volatile
   2. Is programmable
   3. Is mounted on the mother board
   4. Contains the bootstrap loader
      1. i and iv
      2. i, ii and iv
      3. iii and iv
      4. i and iii
5. The term cybercrime refers to ... 
   1. any illegal activity involving a computer 
   2. destructive events or pranks 
   3. events that damage computer hardware 
   4. Internet-based illegal acts 
6. An online meeting allows users to ... 
   1. determine the receiver's geographic location 
   2. leave voice messages for one or two people 
   3. print to a web address that is associated to a particular printer 
   4. share documents with others in real time 
7. Software that collects information about a user without his consensus: 
   1. Phising 
   2. Sniffer program 
   3. Social engineering 
   4. Spyware 
8. ... format reduces the size of an audio file to about one-tenth its original size, while preserving the quality of the sound.
   1. BMP 
   2. GIF 
   3. JPEG 
   4. MP3 
9. Many web addresses begin with http which is the ... 
   1. domain name 
   2. page name 
   3. path 
   4. protocol 
10. To save an image on a web page: 
    1. Right-click on the image and follow the instructions. 
    2. Save the whole page (File, Save As) and find the image in all the material saved. 
    3. You cannot get an image off a page to use in a document. 
11. Rules for exchanging data on a network: 
    1. Asynchronous transmission 
    2. Configuration 
    3. Protocol 
    4. Serial transmission 
12. ... is a technique used by criminals to win the trust of an individual and then get them to provide them with personal information. 
    1. Phising 
    2. Social engineering 
    3. Using a sniffer program 
    4. Using spyware 
13. The device used in a data communication network to perform the conversion between analogue and digital signals, is called a ... 
    1. front end processor 
    2. modem 
    3. decoder 
    4. multiplexer 
14. A pdf (Portable Document File) file can be viewed on the Internet but may take a long time to open. It is quicker to save it, and then open it with Adobe Acrobat Reader later when you are off-line. To save it to download and read later right-click and click ...
    1. Add to Favorites... 
    2. Copy Shortcut 
    3. Open in New Window 
    4. Print Target 
    5. Save Target As... 
15. The pictures from the Red Cross Hospital Primary School web site have a blue border. Select the wrong statement: The blue border ... 
    1. indicates that it is a hyperlink
    2. indicates that when clicked the picture will open to a large picture
    3. is an indication that the web designer considered poor bandwidth
    4. is just a pretty blue border with no special meaning

    /15/

Question 2 - Matching columns - 1 each - 10 marks

Column A

Column B

Allows an e-commerce customer to collect purchases. Communications activity on the Internet. First page on a web site. Linked series of programs that controls, assists, and supervises all other programs on a computer system and that allows dissimilar hardware systems to work together. Part of the central processing unit that determines the sequence of computer activities, interprets instructions, and controls the way in which those instructions are carried out. Permanent computer memory system containing data and instructions that can be retrieved and used but never altered. Process of transferring data in a continuous stream. Process of transferring documents, graphics and other objects from your computer to an Internet server. Step-by-step series of instructions directing the computer to carry out a sequence of actions in order to perform an operation or to solve a problem. Temporary computer memory system in which data can be stored and from which data can be quickly retrieved.

arithmetic/logic unit bus central processing unit (CPU) chip, or microchip control unit data bus downloading  ergonomic keyboard  hardware home page  memory microprocessor operating system player  program protocol random-access memory (RAM) read-only memory (ROM) shopping cart  streaming  thumbnail  traffic  uploading  SIMM

/10/

Question 3 - Computer architecture - 15 marks

1. Indicate if the following statements are true or false.  If the statement is false, write down the correct statement. [3]
   1. Most entry-level computers come standard with 64Kb RAM. (1) 
   2. RAM is mechanical. (1) 
   3. RAM is dependant on a constant power supply for its effective operation. (1) 
2. RAM is used to store the operating system, (a) ...................... and (b) ....................... in use whilst the computer is running. [2]
3. What important program is stored in ROM? [1] 
4. Where is DRAM found physically on the motherboard?  [1] 
5. What is stored in RAM when the computer is switched off?  [1] 
6. What is stored in ROM when the computer is switched off?  [1]  
7. What is the main reason for the utilization of cache memory?  [1]  
8. What is the purpose of registers?  [1] 
9. Why is it necessary to use ROM in a computer? )  [1] 
10. How does ROM function differently from what RAM is used for?  [3] 

/15/

Question 4 - Data communication/Internet - 40 marks

1. Name a new South African ISP. [1]
2. Select from 1, 2 and 3. Which icon on the toolbar would you click to ...  [3]

   

   1. refresh a page so that the latest information shows?  (1)
   2. stop the downloading of a page?  (1)
   3. quickly return to your home page while surfing the web? (1)
3. You have received email from a number of people. How do you know from which country they come? Explain with examples. [3]
4. Write down the missing word in each of the following descriptions: [3] 
   1. ... is the authoring language used to create documents on the World Wide Web. 
   2. Each web page has a unique address, called the ... 
   3. A ... is a built-in connection to another web page or web site and is usually indicated as text underlined in blue, or with a graphic usually with a blue outline. 
5. Choose the correct method of connecting to the Internet: ASDL, DIGINET, ISDN, Modem  [4]
   1. A company wants their 150 employees to have permanent Internet connectivity. 
   2. A family runs a small business from home and would be using their Internet for banking, email and e-commerce. They need a permanent connection for the one computer that they use for their business. 
   3. A family wants to connect to the Internet for email and a small amount of surfing. 
   4. A small company will be using the Internet for less than 2.5 hours a day, mainly to be able to email their clients and to do banking. It is however, important for them to have a fast Internet connection. 
6. Using the menu bar [5]

   
   Select from File, Edit, View, Favorites, Tools and Help 

    

   1. History stores the web sites and pages you've viewed in the last few days, hours or minutes. Which item on the menubar would you click to access options to set the number of days pages are saved in History? (1)
   2. Which item on the menubar would you click to access options to print a page with background colours and images? (1)
   3. You have a very slow connection to the Internet. Which item on the menubar would you click to access options to prevent the downloading of animations, sounds or videos? (1)
   4. Which item on the menubar would you click to access options to find an online web tutorial (tour) of the Internet?  (1)
   5. You have poor vision. Which item on the menubar would you click to adjust the text size?   (1)
7. Using the Internet effectively:  [10]
   1. When is the best time of day to go online for a fast connection? Explain!  (1)
   2. Which day of week is the best to go online for a fast connection? Explain!  (1)
   3. When is the best time of day and of week to get a cheap connection? Explain!   (1)
   4. When is the best time with respect to day and time to go online for cheap fast connection? Explain!  (1)
   5. Name two fast search engines.  (2)
   6. Name two local ISPs.  (2)
   7. Discuss/describe two other topics, besides time of day/week, fast search engines and ISPs on using the Internet effectively.  (2)
8. Answer the following questions on Internet banking. [11]
   1. South Africa is a leading country in the technology of Internet banking.  Give one advantage for the client of electronic banking? Explain in a full sentence. (1)
   2. Discuss/explain clearly one feature found in ATM banking and not in Internet banking. (1)
   3. What software would you need to access the Absa web site?  Give the type of software and the name of a application, e.g. a word processor and MSWord. (2)
   4. From a socio-political point of view name two drawbacks of Internet banking in South Africa. (2)
   5. Name two banking services offered by FNB, Absa, Standard or Nedbank to their clients who bank via the Internet. Explain in full sentences. (2)
   6. Describe three measures banks and their clients take to prevent unlawful access to Internet bank accounts. (3)

/40/

/75/ 

---

This work may be freely copied for non-commercial use only. Copyright © Pam Miller.