Information Technology Paper 2 (English)

November 2024 — Grade 12 / Matric — Information Technology

Past Paper 2024 Grade 12 English

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🎯 150 marks ⏱️ 3h 📄 17 pages 📝 105 items found 📚 5 topics

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Q1— Section header —

1.1Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A D\ next to the question numbers (1.1.1 to 1.1. 10 \ in the ANSWER BOOK, e.g. 1.1.

1.1.1the loss of signal strength caused by internal or external factors. Electromagnetic interference Eavesdropping

1.1.2An e mail protocol that downloads messages to the mail client is known as ...

1.1.3Embedded wires that allow data to travel in and out of the CPU are called ... bridges. arrays. streams.

1.1.4Which type of software will allow users access to the code of an application by default?

1.1.5What is the role of a compiler in software development? Compresses source code files Translates source code into machine code Encrypts and decrypts source code

1.1.6What is the resulting data type of the DIV operator in Delphi programming

1.1.7he following statement s are g iven: iNumber := 1; for iRow := 1 to 4 do for iCol := 1 to 2 do inc(iNumber\

1.1.8distributed database with a growing list of records linked together using cryptography is known as ...

1.1.9loses its contents when the power is switched off.

1.1.10programming language that is used to define the structure and content of a web page and adds dynamic behaviour to the web page.

1.2Give ONE word/term for each of the following descriptions. Write only the word/te rm next to the question numbers (1.2.1 to 1.2.5\ in the ANSWER BOOK, e.g. 1.2. Computer

1.2.1An instruction given to a DBMS to reverse a transaction and restore the database ba ck to its previous state (1\

1.2.2A technique used by the operating system where tasks and processes are split up between the different CPU cores of a computer to be processed in parallel (1\

1.2.3type of printer that uses filament/thermoplastic that melts when heated and turn solid when it cools down (1\

1.2.4type of technology that allows a host operating system to run other operating systems on the same device at the same time (1\

1.2.5The collection an storage of extremely large, diverse amounts of data over time that

1.3Indicate whether the following statements are TRUE or FALSE. Write only true or false

3.1to 1.

3.5\ in the ANSWER BOOK. Correct the statement f i t i FALSE by writing down the correct term

1.3zombie is a network of computers that are remotely controlled by malware and then used by criminals to install and run malicious software. (1\

1.3Green computing is the study and design of the workplace and the equipment that is used for the comfort and safety of people. (1\

1.3hyperlink is a built n connection to another web

1.3patch is a collection of updates combined into one package. (1\

1.3.5The WHERE clause in an SQL statement is used to test a condition that uses an aggregate function. (1\ TOTAL SECTION A:

Q2— Section header —

2.1The amount of memory in a computer system is crucial to ensure optimal performance.

2.1.1Explain the function of primary memory (RAM\ in a computer system. (2\

2.1.2Discuss what cache memory is and how the use of cache memory contributes to the efficient functioning of a computer system. (3\

2.1.3Explain why the use of virtual memory impact negatively on the performance of a computer. (2\

2.2Computers that are used to view live marathon event are slow. It was suggested that a graphics processor unit

2.3A computer technician at the event suggested that the computer used for the event should have a modular design with up

2.3.1State TWO advantages of the modular design of a computer. (2\

2.3.2State TWO functions of the BIOS. (2\

2.3Explain why the BIOS is stored on non volatile memory. (2\

2.4All the electronic devices used during a marathon event are connected to a network.

2.4.1Name a hardware component in a desktop computer that enables the computer to connect to a network. (1\

2.4.2Besides hardware and software, what is another requirement for connecting a local network to the internet? (1\ Information Technology /P2 DBE/November 20

2.5Cloud computing will be utilised at the marathons.

2.5.1Define cloud computing (2\

2.5.2Motivate how the use of cloud computing will reduce the hardware requirements of the computers used during marathon. (2\

2.6The organisers of nternational marathons want to use virtual reality during the Global Marathon Series.

2.6.1Define virtual reality (2\

2.6.2Justify the use of virtual reality by giving TWO practical examples of how athletes can benefit from using this technology

Q3— Section header —

3.1Networks can be classified according to topology, architecture and geographical reach.

3.1.1State the name of a cabled network that covers a limited geographic al area, such as a sports stadium. (1\

3.1.2Define the term bandwidth in the context of a network.

3.1.3State the unit of measurement of bandwidth in a network. (1\

3.1Each computer n the network is assigned an IP address. Discuss the purpose of an IP address. (2\

3.1A star topology has been suggested for this network. Motivate why a star topology will be a suitable layout for this network (2\

3.2Users need to connect wirelessly to the network. 3. .1 State TWO technologies that can be used to connect to a wireless network

3.2.2 Briefly describe how a person can connect to a wireless network from their device (2\

3.2.3 A laptop' s built in wireless adapt r has been damaged. Name the peripheral device that can allow the laptop to still

3.3A website has been developed for the marathon event. The website allows participants to upload images and videos and share their experiences of the marathon.

3.3.1 Explain why a static website will not be a suitable choice for this website. (2\

3.3.2 Users will be requested to accept cookies when they visit the website. Explain what a cookie is and state TWO ways in which

3.4A ticketing system has been designed for the spectators at the event. Each ticket has an image similar to the one shown below.

3.4.1What is this type of image called? (1\

3.4.2Describe TWO benefits of having such an image on the spectators' ticket (2\

3.5The marathon can be streamed live or viewed on demand.

3.5.1Differentiate between live streaming and view on demand (2\

3.5.2The server providing the streaming services has become unresponsive. (a\ State the term used for an attack that makes a website inaccessible by using a large number of computers to request data from the site at the same time.

Q4— Section header —

4.1The school is organising a marathon. The entries of all the athletes are saved in a table called tblAthletes.

4.1.1Give TWO reasons why it would be more suitable to use a Google form rather than a printed entry form for the athletes to register for the marathon.

4.1.2The table below is an extract from the results of 12 500 athletes that were captured after completion of the marathon. (a\ An

4.2Data integrity is a common term associated with database design and operations.

4.2.1Explain what physical data integrity refers to. (1\

4.2.2State TWO hardware devices that can be used to ensure the physical integrity of data. (2\

4.3Give ONE term for EACH of the following definitions:

4.3.1The process of refining the structure of a database to minimise redundancy and improve integrity (1\

4.3.2A field containing unique values that could be used as the primary key but is not currently set as the primary key (1\

4.4Explain how metadata adds value to data. (2\

4.5There are different types of computer systems used in knowledge intensive organisations. Justify the use of an exper t system rather than a decision support

4.6A user s digital footprint is created through invisible data collection. Give TWO examples of where a digital footprint can be used. (2\ TOTAL SECTION D: 24

Q5— Section header —

5.1The date of a marathon s assigned to a string variable in the format dd/mm/yy yy

5.1.1Which ONE of the following options (A or B\ is the correc t code to extract the month from the

5.1.2The variable sMonth has been declared as a string variable and has been used to extract the month correctly from the date referred

5.1A syntax error in Line 1 of the CASE statement below will prevent the code from being executed: Line 1: case sMonth of // correct code to display month name end; (a\

5.2A StringGrid component in Delphi is an effective way of presenting data in rows and columns. Write code that will display the text "Koos Nel" in the correct cell of the StringGrid component

5.3Determine the value of D in the following expression D = (C = B MOD 5\ AND NOT E OR (A C = 1\ where A = 5, B = 12, C = 4, E = FALSE

5.5.3The code provided shows some methods that describe the behaviour of the Runner object. (a\ One of the accessor methods has already been declared. Write the declaration of

Q6— Section header —

6.1A website has been developed for athletes to register for the marathon.

6.1Name TWO ways to determine whether a website is secure or not (2\

6.1Describe how data is encrypted and decrypted using SSL. (4\

6.2The organisers of the marathon iss ue a RFID tag to each athlete.

6.2.1Explain how an RFID tag can be used to det ermine the time it

6.2.2A few of the athletes are doubtful about the use of RFID tags Briefly discuss how

6.3Study the properties and features of the TechGlow Pro and Fitflex Ultra wearable devices below and a nswer the questions that follow.

6.3.1The FitFlex Ultra has GPS connectivity. (a\ Discuss how GPS technology works. (2\ (b\ State TWO ethical issues related to wearing a device with GPS technology.

6.3.2The TechGlow Pro device is compatible with a smartphone State which wireless technology will make this connection possible. (1\

6.3.3These wearable devices are able to measure it ems such as heart rate, sleep cycles, steps and calories burned. Name the technology inside wearable devices that make all these measurements possible. (1\

6.3.4These wearable devices have limited processing power but have access to the internet. Describe how the power of distributed computing can supplement the processing power of the wearable devices. (4\

6.4The organisers of the marathon have decided to create a wiki website.

6.4.1State TWO advantages of a wiki site. (2\

6.4.2Explain how content providers can improve the quality of the contributions made to a wiki site. (2\

6.5The advancements in mobile computing has made the i nternet and information easily accessible to everyone. Explain the term information overload and motivate why it could pose

6.6It is the responsibility of the marathon organisers to ensure that the marathon statistics and other information are kept safe.

6.6.1Explain the term spoofing (2\

6.6.2Ransomware is malware that encrypts files until a ransom amount has been paid. Why do criminals prefer the ransom amount to be paid in cryptocurrency? (1\ Information Technology /P2 17 DBE/November 20

6.7Software updates should always be downloaded and installed on a device to ensure that an application has the latest features. What are TWO possible disadvantages of enabling automatic updates for software applications on a device?

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total150 marks

Paper information

SubjectInformation Technology

Year2024

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages17

Downloads5

Examination context

Decade2020s

Years ago2y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2024

Days since exam718

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