Information Technology P2 English

November 2008 — Grade 12 / Matric — Information Technology

Past Paper 2008 Grade 12 English

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🎯 180 marks ⏱️ 3h 📄 17 pages 📝 82 items found 📚 5 topics 🔑 1 key info

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Q1— Section header —

1.1

1.2

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1.6

1.7Consider the following list of hardware items: (ii\ AGP (iii\ 250 W power supply (iv\ Heat sinks on certain motherboard components Which items may be essential to provide continuous reliable operation of a

1.8Which ONE of the following statements is FALSE? A Formatting a value to be displayed according to a certain format will physically alter the stored value. B Overflow occurs when a number such as an integer falls outside

1.9Which ONE of the following statements is TRUE? A A class may NOT have more than ONE constructor. B A mutator method provides the facility to change a class variable. C A class is an instantiation of an object.

1.10

Q2— Section header —

2.1The first cache store used in computers was a small high-speed memory device situated between the CPU and RAM.

2.1.1Explain how conventional cache memory works. (3\

2.1.2Name TWO differences between L1 and L2 cache. (2\

2.2

2.2.1What is the difference between multi-threading and multi- processing? Explain AND give an example of each. (4\

2.2.2(a\ (b\ Name ONE recent technological hardware innovation (not related to the CPU\hich has improved the efficiency and speed of computer systems. Explain how it has improved performance. (1\ (2\

2.2.3Explain why pipelining improves the processing speed of a computer system. (2\

2.3LANs which provide access to the internet are becoming commonplace. At any given time there can be huge amounts of data moving through the servers supporting these LANs. The speed and capacity of backing storage is

2.3.1What does the acronym stand for? (1\

2.3.2Name and briefly discuss TWO pre-dominant storage techniques used by RAID. (4\ NSC

2.4Data stored on the servers must be protected from loss or damage arising from hardware failure, theft of equipment or user carelessness. To facilitate this protection backup procedures are used.

2.4.1When designing a backup procedure briefly state: (a\ (b\ (c\ (d\ What hardware should be used? What media type should be used for this hardware (in

Q2— Section header —

2.4.2Some companies offer a backup solution whereby they will provide equipment and visit your site to perform backups for you. Suggest TWO advantages of this solution. (2\

2.5From time to time one can experience unexpected problems with a computer connected to the internet. These can range from trivial to catastrophic.

2.5.1Describe TWO negative and unwanted effects that can be experienced with a personal computer connected to the internet. State, in each case, what the cause of the negative effect could be. (4\

2.5.2The increased use of the internet means that many more files are written to and deleted from the hard drive. (a\ (b\ Explain ONE common problem which causes slowness in a personal computer if there have been many file additions and

Q2— Section header —

2.6One internet solution that has emerged in recent years is on-line software. For example, an application package such as a word processor and the storage of processed files are provided on the internet.

2.6.1Discuss THREE advantages of using a word processor on-line. (3\

2.6.2Discuss TWO disadvantages of using a word processor on-line. (2\ NSC

2.7A local business upgraded their computers and donated their old computers as well as their printers to a school. The school decided to create a small research centre at the school by setting up a LAN that is connected to the

2.7.1There are no drivers available to set up the printers. Suggest TWO ways to solve this problem. (2\

2.7.2The LAN will be used to play network games over weekends. (a\ (b\ Name at least TWO specific needs of these users regarding the hardware specifications of the computers. Since there will be internet access they would be able to play

2.7.3Learners doing research in the computer room can save information that they have downloaded on their cellphone without a physical connection. (a\ (b\ What is the recent communication standard available on

2.7.4Some of the learners use smart phones to connect to the internet. Some of these phones use an open-source multitasking operating system. (a\ (b\ (c\ Do you need to install the operating system on your smart

2.7.5Traveling costs are increasing and roads are becoming very congested. The principal gave permission to configure the LAN so that teachers can make video calls instead of attending meetings. (a\ (b\ Name a suitable network protocol that will be required to

Q3— Section header —

3.1A number of categories of internet-based criminals have emerged in recent years.

3.1.1What is a and what is his/her objective? (2\

3.1.2Using an example, explain what the purpose of phishing is. (2\

3.1.3Using an example, explain what identity theft is. (2\

3.2One way of providing security on certain websites is to use digital signatures.

3.2.1In what type of site will the use of digital signatures be effective?(1\

3.2.2What security do digital signatures provide AND to whom? (2\ [9] NSC9

Q4— Section header —

4.1Society has access to global information through the internet. Do you think the internet can be used to assist governments to handle the HIV/Aids issue? Substantiate your answer. (2\

4.2The IT teacher at a certain school makes use of internet technology in the classroom by requiring learners to do electronic research in class on given topics.

4.2.1During their electronic research sessions it became obvious that the information retrieved on a topic can differ quite dramatically from one website to another. Give TWO hints on how a learner can ensure that the information on a website is trustworthy.

4.2.2The teacher requires the learners to do the research and compile a brief report within one hour of finishing. Most of the learners could not complete this task in the allotted time because of information

4.2.3Making use of electronic research should still be encouraged in schools even though there are problems to overcome. Name TWO benefits to substantiate this argument. (2\

4.3Internet technology is being used extensively in the medical field. The shortage of medical doctors in certain areas has been addressed by making use of telemedicine. Explain what telemedicine is. (2\

Q5— Section header —

5.1He has been given a database table design that looks as follows: FIGURE 5.1

5.1.1(a\ (b\ (c\ What is the primary key of the table? What is the purpose of a primary key? Motivate the choice of this field (and its data type\as a primary key by comparing it to TWO of the other fields from the given

5.1.2Mothusi has asked you to examine the database design to make sure it is as effective and efficient as possible. This means that you have to normalise the database. (a\ (b\ (c\ Explain to Mothusi what

5.1.3You suggest to Mothusi that the design should include data validation: (a\ (b\ Briefly explain to Mothusi what the purpose of data validation Write out the data validation that you would set for the following fields in the given table:

5.1.4Getting data into the database and making sure that it is accurate is only the first step in making a database work. The real power of a database lies in how you get information out of it. To do this you

5.2Users who log onto a website to order movies need to create a profile which includes a user name and a password. You explain to Mothusi that he will need some programming done to make sure that users' passwords are

5.3The website that is being used is a success and Mothusi has expanded his business to sell mp3 music and e-books as well as movies. He has decided the program that records the sales from the web-site should now be re-written

5.3.1Which of the methods is used to output information about the entire object? (1\

5.3.2How would you change the update method to make it receive values to put into the fields? (2\

5.3.3What (data\ type of method would getFileName be? (1\

5.3.4Three other classes will be derived from this superclass, namely MovieClass, BookClass and MusicClass. The process of one class being derived from another is called inheritance Explain TWO advantages of inheritance by referring to the

5.3.5Besides inheritance, OOP also allows programmers to use a technique called polymorphism. Briefly explain what polymorphism means. (2\ TOTAL SECTION D: NSC

Q6— Section header —

6.1The following needs to be considered when planning the use of ICT:

6.1.1The consortium needs to provide network connectivity to all 21 guest rooms. (a\ (b\ Keeping in mind that they must have as little effect on the environment as possible (that is, no poles or trenches\ what is

6.1.2Most of the guests will be busi ness people who will want access to their e-mail and the internet. The computer room at the lodge will also have to contain the equipment necessary to connect the network to the internet. This equipment includes:

6.2Internet use can be frustratingly slow especially if you are accessing an international site that contains lots of graphic images. A service provider can alleviate this slowness to some extent by running

6.2.1Explain how caching operates to reduce the delay in accessing the same site on several occasions in a short period of time. (2\

6.2.2Study the options given below. In each case state whether caching is suitable or not and give a reason. (a\ (b\ A site dedicated to the history of the Roman Empire which is being accessed by a number of classes in a high school

6.3As part of conservation management and to increase efficiency, the lodge will make sure that all guides and trackers are issued with a smartphone PDA. This device will include a GPS which will enable the guides to better track and

6.3.1(a\ (b\ (c\ Name TWO characteristics of a smartphone PDA that make it different from a normal cellphone. Why do you think that the consortium wants to use a smartphone PDA instead of a laptop, specifically in these

6.3.2(a\ (b\ What does the acronym stand for? Every time a guide sees wildlife he/she is supposed to record the species and the amount spotted. For example, four buffalo. They then use the GPS to record the location

6.4

6.4.1What is a webcam AND what does it do? (2\

6.4.2In order to make the feed available on the internet the consortium will have to create a web presence for themselves. They will need the following: Web server software A domain name for registration purposes

6.4.3Now that the lodge has a web presence the consortium decides that they want visitors to be able to do direct bookings and payments through the internet. In order to keep these transactions secure they need to use SSL.

6.4.4To keep the general public informed of activities the consortium asks the lodge manager and the chief ranger to keep a blog detailing the daily events and activities at the lodge. To keep people interested in the blogs, the consortium insists that the blogs

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total180 marks

Sections9 + 10 = 19 marks

Key Information

Websitewww.bataulodge.edu.nz

Paper information

SubjectInformation Technology

Year2008

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages17

Downloads5

Examination context

Decade2000s

Years ago18y

SeasonSpring (SH)

Start dayWednesday

Exam periodNovember 2008

Days since exam6,562

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