Information Technology English P2

November 2012 — Grade 12 / Matric — Information Technology

Past Paper 2012 Grade 12 English

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🎯 180 marks ⏱️ 3h 📄 21 pages 📝 92 items found 📚 5 topics 🔑 1 key info

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Q1— Section header —

1.10\ in the ANSWER BOOK.

1.1A software program that ecord what you type on the keyboard or the

1.2

1.3

1.4The switching technique where the best possible route is chosen to transfer data in a WAN is calle switching. ine acket

1.5

1.6

1.7Which operating sy stem has been designed specifically to work on a cellphone Android Solaris Windows Vista

1.8Software that translates each line of source code into machine code and executes it before moving to the next line of code i s known as a/an assembler.

1.9The values below are saved into an array The index value of the element 'a' in the array is 0. The index value of the element 'u' in

1.10

Q2— Section header —

2.1One of the computers in the reptile park s of fices needs to be upgraded . This computer among other things

2.1.1Currently a 17" CRT screen is in use with a refresh rate of 70 Hz. (a\ Define the term fresh rate (2\

2.1.2The hard disk contains mostly old photographs and is almost full. (a\ All of the photographs except those take n by the lead photographer at the ark

2.1.3Mr Eagle has been advised to replace the RAM of the computer in order to enhance its performance. (a\ How will you ensure that the new RAM is compatible with the current motherboard?

2.1.4Most of the peripheral devices required will be connected to the computer using USB

2.2Mr Eagle is experie ncing problems when trying to open photographs saved on the hard drive. He noticed that the icons of these files have been replaced.

2.2.1What is a computer virus (2\

2.2.2State TWO ways of preventing a virus from being launched on computer system. (2\

2.2The virus could not be removed by any of the latest antivirus program herefore the hard drive needs to be formatted. Write down the

2.2.4Currently al l the photographs, letters and other documents, such as financial reports and order forms, are saved in the root folder on the hard drive. Draw a simple diagram of a folder structure to illustrate an

2.3The Red Feather Nature P ark has created new feeding stations in the lion cage. S taff members

2.3.1Write down the full term for the acronym RFID (1\

2.3.2Describe how RFID tags could be used to facilitate the monitoring of the lions (2\

2.4The server at the main office has to be replaced Give TWO reasons why a se rver is better suited to ensure high performance rather than a regular PC. (2\

2.5The chipset is an integral part of the design of a computer.

5.1Briefly describe the primary function of the chipset. (1\

5.2The following devices must be connected to the chipset. For each device ndicate whether it will be connected to either

2.6The performance of the CPU should be opt imis ed to ensure a high performance computer system

6.1One of the techniques used to improve the performance of a CPU is pipelining. Define pipelining (2\

2.6.2Explain the role cache memory plays in the performance of a CPU

2.6.3s are often over clocked to increase performance. Overheating is the major problem that arises because of this practice. (a\ What is meant by over clocking a CPU (1\

Q3— Section header —

3.1Many visitors requested that mmunication be in place as a standard facility at the park so that they can at least

3.1.1State TWO advantage of e communication from the ark's point of view

3.1.2State ONE disadvantage of having communication fac ilities at the ark

3.2The administration office requested that SSL should be implemented as an encryption protocol

3.2.1How will the ark full website address tp://www.redpark.co.za change once SSL is implemented? (1\

3.2.2riefly explain what encryption is. (2\

3.2.3What is required to be able to decrypt an SSL encrypted mail

3.2Which ONE of the following activit ies will NOT need to ake use of

3.3Give TWO practical and interesting examples of ow podcasting can be used the park. (2\ A new screensaver was

Q4— Section header —

4.1In terms of IT systems at the ark, describe TWO ways in which the electricity consumption could be reduced. (2\

4.2The ark has a policy of replacing computers every five years.

4.2.1State TWO responsible ways how the ark can dispose of their old computers (2\

4.2.2Do you think replacing computers every five years is a good policy? Give a reason for your answer. (2\

4.3The administrator is concerned about ensitive fi nancial data that has been saved on the hard disk s of the

4.4The human resources department is considering re questing access to the Facebook profiles of new employees in order to find out more about them. Do you think this is ethical? Justify you answer. (2\

4.5The management at the Red Feather Nature Park is aware of the possibility of computer crime taki ng place in an e communication environment. Explain the term computer crime (2\

Q5— Section header —

5.1A member of the panel has compiled a database called PlantsDB cont aining data of plants the ark needs to buy and

5.1.1Not much effort has been put into selecting suitable data types for the fields in the table . Suggest a more suitable data type for each of the following fields: Fer

5.1.3Only the letters K, M or U are allowe d to be entered in the Fertilis erType field . The

5.1.2The preferred data type for the field PoisonousToAnimals is Boolean. Explain why the data type Number can be used as suitable alternative 13

5.2Another table tblTreeOrders is used to store data on the orders placed for trees . The table has not been normalised

5.2.1nsert anomal ies is one of the problems that can occur when the table has not been normalised The following orders are placed separately but on the same day

5.2The following is a possible solution for normalising the tblTreeOrde table into 1NF. The tblOrders table makes use of a

5.2The following is an attempt to normalise the given tblTreeOrders table to 2NF. tblTrees Key FieldN ame TreeID

5.3The cleaning staff get paid per week at a rate of R10 00 per enclosure they clean. The software developer has compiled the following algorithm to calculate and display

5.3.1Define algorithm (a\ Identify the type of relationship between the tblOrder table and the tblOrder

5.3.2In line the user is required to enter a number whic h is saved into the integer variable Num ber (a\ The user enter the number

Q5— Section header —

5.3.3When the program is executed and the user enters a valid number when prompted to enter the number of enclosures cleaned, the payments are calculated and displayed incorrect This is the result of TWO logical errors in the given a

5.4A text file called Clinic.txt is used to keep track of the animals admitted to the clinic the caretaker Below

5.4.1Give ONE reason why WHILE loop is a more suitable control structure than a FOR loo

5.4Line of the given algorithm may be completed in a number of different ways. Analyse the aims and I statements below and w rite down ONLY the correct missing

5.4.3Write down the name(s\ of the animal(s\ that will be displayed when l ine of the given algorithm replaced with the follo wing

Q6— Section header —

6.1The ark recently launched its website and still has a lot to learn regarding the design and maintenance of websites

6.1.1Why is it impo rtant for the ark to have a website? (2\

6.1.2Describe THREE requirements of a well designed website. (3\

6.1.3The administration manager has heard that hackers could gain access and interfere with the ark' s website. (a\ Give ONE possible indication/reason that may make one conclude that a website has been hacked.

6.1.4A website is earch engine friendly when it is displayed high up in search results for relevant keywords. (a\ Why is it important for the ark to have a search engine

6.1.5Navigation is an important part of a website' s functionality. Name TWO aspects regarding website' s design that will promote

6.1.6The webmaster uses FTP to update the ark' s website. Define the concept FTP (b\ Explain the difference between HTTP

6.1.7

6.2All the buildings in the ark are connected via an Ethernet network making use of the TCP/IP pr otocol

6.2.1Define the term communication protocol

6.2.2Define the term network topology (1\

6.2Name the topology that is used in an Ethernet network

6.2The ark is more than five kilometres wide. Give TWO reasons why UTP cables are NOT the preferred choice for cabling the network.

6.2The b ota nical garden and the m aintenance offices are outer buildings which make use of a VPN to connect to the administration office.

6.3The administration manager has been informed that RSS feeds are a good way to distribute the latest news about the park.

6.3Many people prefer RSS feeds instead of visiting a website for news . Give TWO possible reasons why. (2\

6.3Name TWO other ways in which news worthy events at the ark could be distributed online

6.4The ark sends out a monthly mail newsletter to all its subscribers.

6.4.1Describe TWO wa ys in which the author of the mail could prevent the mail being fl agged as spam by the recipients' mail

6.4.2An unsubscribe option is included at the bottom of every newsletter. Why is it important that this option is included?

6.4.3The mail newsletter has over 5 000 subscribers. A newspaper article has been scanned to be attached and sent out with the

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total180 marks

Sections13 + 12 = 25 marks

Key Information

Websitewww.redpark.co.za

Paper information

SubjectInformation Technology

Year2012

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages21

Downloads4

Examination context

Decade2010s

Years ago14y

SeasonSpring (SH)

Start dayMonday

Exam periodNovember 2012

Days since exam5,102

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