Information Technology Paper 2 (English)

November 2011 — Grade 12 / Matric — Information Technology

Past Paper 2011 Grade 12 English

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🎯 180 marks ❓ 1 questions ⏱️ 3h 📄 19 pages 📝 99 items found 📚 7 topics

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Q1— Section header —

1.1

1.2The maximum amount of data that can be transmitted over an electronic A bandwidth. B a connection. C protocol. D frequency. (1\

1.3

1.4The procedure followed to identify the identity of the sender of an e-mail is A handshake. B signature. C certificate. D fingerprint. (1\

1.5

1.6

1.7Which ONE of the following software items does NOT allow a user to perform A Defragmenter B Uninstaller C Windows Explorer D Compiler (1\

1.8In object-oriented programming, wh ich ONE of the following will NOT be A Book B Librarian C Price of a book D Member of the library (1\

1.9Which ONE of the fo contain some music? A abc.pdf B abc.wav C abc.doc D abc.jpeg (1\

1.10The component that uses battery power to store the configuration information A BIOS. B RAM. C CMOS. D OS. (1\ NSC

Q2— Section header —

2.1The statement above 'For any electronic computing devic e to be functional, it requires a This group of learners presented t he design below for their modern DIAGRAM 1: DESIGN OF A MODERN MOTHERBOARD

2.1.1Why does a motherboard need a chipset? (2\

2.1.2The basic design principles for chipsets were followed. Identify the TWO parts of the chipset by writing down the names of component A and component B. (2\ Chipset BIOS CPU A socket 4 x DDR3 (1 066 MHz\ts

2.1.3Structures C and D are different bus types. (a\Explain what a is in terms of computer hardware. (2\ (b\Which bus (C or D\(1\ (c\Name and briefly explai n the function of any TWO system

2.1.4State THREE advantages of using a USB port. (3\

2.1.5Cache memory, the ALU and re (a\What is the function of the ALU? (1\ (b\Does any change in the size of the registers influence the CPU's performance? Motivate your answer. (2\

2.1.6How does overclocking affe ct the speed of the CPU? (1\

2.1.7A group member states that t he CPU (Intel Pentium 2.0 GHz\ be replaced by any newer version of the CPU that the user wants. Is this possible? Motivate your answer.

2.1.8One of the factors that has an influence on the performance of a (a\Explain what the of a processor is. (1\ (b\Give ONE example of an extended instruction set. (1\

2.1.9Two CPUs on the motherboard will generate a lot of heat. Name from overheating. (2\

2.2The learners from an other stall emphasised some important aspects about

2.2.1Users should be aware that metadata exists for each file. (a\Explain what metadata is. (1\ (b\Give ONE example of met adata that will be provided with a FAT32 file system. NSC

2.2.3DIAGRAM 3 below is a representation of the management console a computer. (a\Explain what is meant by the term (b\State TWO advantages of hav ing the hard drive partitioned. (2\ (c\Partitioning should take plac

2.2.2DIAGRAMS 2a and 2b below show the properti es of a zipped file NSC RAID technology ? (1)1

2.2.4Hard drives st ore a huge amount of data. For some users, like banks, their data is critical and t herefore RAID technology is often used. (a\What is (b\Briefly explain how RAID Level 5 works. (2\

2.3The computers in the IT lab are curr below. Another group of learners recomme nds the use of a star topology for DIAGRAM 4: CURRENT NETWORK LAYOUT OF IT LAB

2.3.1What does the term refer to in relation to computer networks? (1\

2.3.2Identify the network topology currently used (DIAGRAM 4\(1\

2.3.3In order to change the current network topology to a star topology, a switch and additional cables are required. (a\What type of cables will be required? (1\ (b\State ONE disadvantage of us ing the type of cable named in

Q2— Section header —

2.3.4It is recommended that a net work administra tor should be unctions of a network administrator. (3\ ADSL modem Teacher PC with projector NSC

2.3.5One of the me mbers proposed the use of thin clients. (a\What is meant by a thin-client (b\State TWO disadvantages of a thin-client computer network. (2\

2.4One of the groups indicated that t he software requirements of the IT lab needed to be addressed.

2.4.1Is a device driver part of syst em software or application software? (1\

2.4.2The school acquired a comput er with a 32-bit bus system. The principal wants to install a 64- bit multithreading operating system on this computer. (a\What is meant by the term multithreading (b\Give ONE reason why is it

2.4.3'Why pay for software?' State TWO disadvantages of usi ng open-source software in the network environment of the school. (2\ NSC SECTION C: APPLICATIONS AND IMPLICATIONS

Q3— Section header —

3.1The use of the Internet is an essentia l part of life today.

3.1.1Users are often advised to get an ADSL (asymmetric digital subscriber line\ than a dial-up connection. Briefly

3.1.2A 3G connection is another popular way of connecting to the (a\Do you need a modem for a 3G connection? Explain your answer. (1\ (b\What type of technology is used with a 3G connection? (1\

3.1.3It is possible for someone else to us e your Internet connection if you have a wireless connection. How can you detect that this is taking place?

3.2E-mail is one of the mo st popular uses of the Inte rnet, but users are often frustrated by the lack of netiquette. What is ? Give an example as

3.3Businesses cannot be competitive today without doing business electronically (e-commerce\ conducting business

3.3.1Briefly explain how the secure socket layer (SSL\ private electronic communication takes place. (2\

3.3.2All web pages do not use SSL. Why not? (1\ NSC of the responsible use of computers think this practice is acceptable?

Q4— Section header —

4.1Many companies monitor or intercept employees' e-mail messages. Do you Briefly motivate your answer. (2\

4.2Computer users often have to spend long r computers.

4.2.1Name TWO possible effects that working long hours on a computer (2\

4.2.2Computer users should be aware of ergonomics. Explain what ergonomics is. (2\

4.3It is estimated that about 1 billion computers were discarded during 2010. Suggest TWO ways in which e-waste can be dealt with more effectively in order to avoid pollution. (2\

4.4In several recent high-profile case s, major news sources have published purposefully altered photos. Explain wh y this practice can be regarded as NSC

5.1.5Data type Data structure Scope of a variable Access modifier

Q5— Section header —

5.1The first activity is a matching exer cise that learners have to complete. The learner that completes the exercise firs t, with all the answers correct, will be Choose a description from COLUMN B that matches a term in COLUMN A.

5.1.1Encapsulation organises and stores related (5 x 1\ (5\

5.2The software developers emphasise t he importance of modular programming

5.2.1Explain what modular programming is. (2\

5.2.2State THREE advantages of modular programming. (3\

5.2.3Would you refer to a construc tor as being a method? Motivate your

5.2.4Name ONE signif and a public method

5.2.5Name ONE significant difference between an accessor method mutator method NSC has been given the topic of error handling a nd debugging.

5.3As one of the activi ties, the learners have been divided into groups where each group will be given a t opic related to programming. The learners in each group will need to formulate questions related

5.3.1Name the THREE common type s of errors in programming. (3\

5.3.2Explain the concept exception handling

5.3.3Give TWO reasons why validation

5.3.4Normal test data often does not reveal possible incorrect outputs of Name TWO types of test data that will assist in ensuring correct

5.3.5Name TWO good programming prac tices that may be followed to

5.4The IT expo has a variety of stalls to keep the community entertained for the duration of the expo. A database has bee n designed to store information on the different stalls at the expo. T he database contains two tables, namely

5.4.1Name the type of relationship between the and tables.

5.4.2Which field in the table would you s uggest as a suitable NSC tblStalls table. The data to be StallCategory Books

5.4.3The data capturer is attempti ng to enter a new record into the captured are as follows: Field Name Content StallOwner Kensley Jenkins Indoors Yes The following error message is displayed after the record has been

5.4.4All categories of stalls ar e not represented at the expo. For example, there are no stalls re The expo director wants a list of a ll the stall categories that are The list should appear as follows: Indicate whether the fo

5.4.5State ONE significant advant age of storing data in a database NSC programming. One way to plan effectiv ely is to write out an algorithm.

5.5Computer experts emphasise the im portance of the planning stages in

5.5.1Explain what an is. (1\

5.5.2Explain why an algorithm designed in pseudocode should not be

5.5.3A certain university is awardi ng bursaries to Grade 12 learners to The learners must adhere to the following criteria: 1. They must be y ounger than 19 years of age. 2. They must have a minimum 3. One of the distinctions mu

5.5.4The expo director is interest ed in how well the expo was received. The algorithm on the next page was written to count the number of people that rated the expo as either of a high standard or of a low

Q6— Section header —

6.1The following heading appear 'Why amateur radio endures in a world of tweets' The excerpt below appears on a poster. Somehow it makes little s ense that amateur radio continues to thrive in the age of Twitter, Facebook and iPhones. It attracts 60% more users than thirty

6.1.1Sending an e-mail or a tweet to another person in another country requires the use of different software. (a\Name a software application that is required to send an e-mail.(1\ (b\State TWO differences between an

6.1.2An iPhone is classified as a smart phone. List THREE distinctive features of a mobile phone for it to be classified as a smart phone. (3\

6.1.3Facebook and Skype are some of the buzzwords used when discussing social networking. (a\Explain the term (b\Briefly explain how the use of Facebook can im pact negatively eenager. State TWO facts. (2\

6.2Linking computers in a global communications network impacts on different sectors of the economy differently.

6.2.1State THREE advantages of a global communications network for (3\

6.2.2List THREE career options t hat arose as a result of connecting computers in a global network. (3\

6.2.3The use of computers for crimi nal intent is on the increase. The terms below are used to describe people that are a threat to Explain the term. What is it? Give a brief description of how such a person can cause

6.2.4The concepts (a\b\iated with threats to a For each concept, choose TWO security measures from the list below that will protect the comput er system against that specific threat. You may use each security measure only ONCE.

6.2.5Honeypots help to secure a co mpany's network. Explain how this is accomplished. (2\ NSC

6.3An illegal recording of someone else's work is called piracy.

6.3.1Name TWO sectors of t he economy on which piracy impacts negatively. (2\

6.3.2Name TWO ways in which an original DVD can be distinguished from a pirated copy. (2\

6.3.3Bootlegging is one of t he main categories of piracy. (a\Explain the term . (1\ (b\Give ONE example of a bootleg. (1\

6.4The use of the Inter net created an information over loaded society. Many of

6.4.1Name TWO ways in which we can ensure that the information on a certain web page is trustworthy. (2\

6.4.2Name TWO ways in which you, as an Internet user, can verify the information provided on the web page. (2\ GRAND TOTAL:

Topics Identified

Word ProcessingSpreadsheetsDatabasesPresentationsProgrammingNetworkingHardware

Mark Allocation

Total180 marks

Sections11 + 9 = 20 marks

Per-question sum56 marks

Paper information

SubjectInformation Technology

Year2011

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages19

Downloads2

Examination context

Decade2010s

Years ago15y

SeasonSpring (SH)

Start daySaturday

Exam periodNovember 2011

Days since exam5,467

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Corresponding marking memorandum

Marking memorandum available

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Information Technology Memo 2 (English) →

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