Information Technology Paper 2 (English)

May-June 2025 — Grade 12 / Matric — Information Technology

Past Paper 2025 Grade 12 English

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🎯 150 marks ⏱️ 3h 📄 15 pages 📝 102 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. 1.1.11 D.

1.1.1Which ONE of the following is NOT a reason for the digital divide? Lack of internet connection in certain areas People with disabilities find it difficult to use ICT

1.1.2Software that t ranslates the code line by line into machine language , while the program is running Compil Interpreter

1.1.3rogram ming technique used to test whether a user s input is in an acceptable range and ensure that data meets a set of

1.1.4Static web pages where all users see the same content Web 1.0 Web 2.0 Web 3.0 Semantic web (1\

1.1.5The integration of digital information with the user s environment in real time Virtual eality Augmented eality Geotagging

1.1A unique number that consists of four sets of numbers from 0 255 separated by periods/dots e.g. 196.14.2.244 Voice over internet protocol IP addr ess Domain name

1.1Software stored on the ROM chip which contains instructions for the boot process

1.1What is the resulting data type of the MOD operator in Delphi programming? Integer Boolean Real String

1.1The use of data encryption to prevent unauthorised access to digital copyrighted content ATM POP3 (1\

1.1.1Any computer or device that provides services and connections to other computers or devices on a network Client Host ISP Domain (1\

1.2Give ONE word/term for each of the following descriptions. Write only the word/term next to the question numbers (1.2.1 to 1.2.5\ in the ANSWER BOOK, e.g. 1.2.6 CPU A protocol used to leave copies of e

1.2A hexadecimal code used to uniquely identify entities e.g. hardware, software documents (1\

1.3Indicate whether the following statemen ts are TRUE or FALSE. Write true or false next to the question numbers (1.3.1 to 1.3.5\ in the ANSWER BOOK. If the statement is true, write TRUE . If the statement is false, write

1.3.1A group of people that work together to commit cybercrimes, each with their own speciality is called a botnet

1.3.2The IRQ is repeated for every instruction executed by the CPU. (1\

1.3.3Multiprocessing is when the computer has more than one CPU core and the operating system splits tasks and processes, in parallel, between the different cores. (1\

1.3.4Leechers are peers that make files available for others to download using BitTorrent (1\

1.3.5archive is a duplicate of a file, program or media that can be used if the original file , program or media is lost, damaged or estroyed. (1\

Q2— Section header —

2.1Mobile technologies play an important role in home automation systems.

2.1.1(a\ Briefly explain what mobile technologies are. (1\ (b\ State ONE dvantage of using mobile devices

2.1.2Give TWO example of how mobile technologies can be utilised in enhancing home automation systems.

2.1.3Suggest ONE rule to follow regarding the security of data, when connecting a mobile device to any public Wi Fi network. (1\

2.1.4Name TWO types of digital input that can be captured using mobile devices. (2\

2.1Suggest ONE strategy to extend the battery li fe of mobile devices while maintaining effective system operation. (1\

2.2The storage of data related to video monitoring using CCTV closed circuit television cameras is key to the safety of residents.

2.2.1State TWO factors that determine the quality of a CCTV camera. (2\

2.2.2Explain why a SSD is considered to be more durable AND how impact on the maintenance of the drive. (2\

2.2.3Motivate why a SSD is a better storage device than a excluding the answer that you gave QUESTION

2.2.2(2\

2.3The use of secure methods to access sensitive information is critically important to security company Explain ONE advantage of using biometric authentication over tradit ional

2.4Discuss how the RAM influenc the performance of a computer system (2\

2.4.4Which expansion card is required if the s peaker system must be connected to a motherboard with a limited number of auxiliary ports? (1\ The use of cloud computing in home automation can have many risks and

2.5Explain the concept of scalability in terms of cloud computing. (2\

2.5State TWO advantages of using SaaS solutions in cloud computing environments. (2\ State TWO security concerns associated with cloud computing. (2\ TOTAL SECTION B:

3.1A security company utilises a network their premises.

3.1.1Briefly explain what NOS ( network operating s ystem is AND its role

3.1Besides workstations, computing devices and servers name TWO other essential components required to establish a connection between nodes in a network

3.1.3Evaluate the importance o f user rights management in a networked environment. (2\

3.1.4State ONE possible disadvantage of using a network. (1\

3.2Having a ne twork connected to the internet has many risks associated with the safety and security of data.

3.2.1Stat any TWO requirements a local n etwork to obtain access to the internet (2\

3.2.2Describe the role of certificate authorities (CAs\ in the context of digital certificates and SSL encryption. (2\

3.3The security company is considering implement ing a wireless local area network at their premises.

3.3.1Justify the use of Ethernet cables versus wireless media. (2\

3.3.2Describe the function of a wireless base station in a wireless network (2\

3.4A laptop supplied to one of the emplo yees at the security company has two NIC Motivate why the employee s laptop should have two NIC instead of one

3.5Location based computing is used by the security company in many aspect of their business.

3.5State TWO other spects that are required , besides mobile device , for effectively using location based services.

3.5Briefly explain TWO benefits the company when using location based services. (2\ A local shop supplying security devices to the compan y will need to take stock of their devices once a week Briefly explain how

3.6Identify TWO potential challenge that the security company might encounter during the impl ementation of RFID technology for stock taking. (2\ OTAL SECTION C:

Q4— Section header —

4.1The DeviceID field is the primary key in the tblDevices table

4.1.1Briefly e xplain what a primary key in a database table (1\

4.1.2Justify why the field DeviceID suitable primary key in the table tblDevices (2\ 11

4.2Redundant fields in a table are removed during the process of normalisation.

4.2.1Evaluate the design of the tblDevices table and establish whether a redundant f ield exists in the table. Give a brief explanation to substantiate your conclusion

4.2.2Discuss how having redundant data could affect the efficiency of the database. (2\

4.3Suggest n improved design/ structure for the table tblDevices by eparating the table into TWO

4.4Each field in a table must have a data type.

4.4.1Identify the most suitable data type for EACH of the following fields: DeviceStatus (1\ StartTime (1\

4.4.2Discuss the importance of using appropriate data types during database design. (2\

4.5The data from the table tblDevices is stored by the security company.

4.5.1Discuss a potential privacy issue related to the collecti stor age of data from device

4.5.2State TWO measures that could be imp lemented to address the issue discussed

Q4— Section header —

4.7Metadata is additional information about a database that is saved in a file or with the database. Name TWO

Q5— Section header —

5.1You have been provided with the following class diagram for a security employee object , as well as a line of code Sec urityEmployee fEmployeeI

5.1.1The plus (+\ and the minus ( symbols in the class diagram indicates whether the attributes and method have public or privat scope. (a\ Why would the following code in the

5.1.2The getName metho d is known as a accessor method. Explain why an accessor method normally does not have a parameter. (1\

5.1.3Identify TWO auxiliary methods the class diagram. (2\

5.1.4The name of the employee and whether he /she has access to a specific location must be displayed. A string with the necessary information

5.1.5Study the following Delphi code that i s used to instantiate a new object and answer the question that follows objSecurityEmployee := T Security mployee.create(

5.1.6Write Delphi code for a method alled determineInit that will return the first letter ( initial of a security employee s name

5.2The number of tiles that will be required to tile a room must be calculated . The following Delphi code has been provided tilesRequired

5.3Assume that t he first time the loop wa s executed, a random number 7 was assigned to the variable Show the content of the array after the first iteration of the loop. (2\

5.3Explain the purpose of the part of the statement in line 6 in the context of the provided code Line 6: j := Random(i\ + 1;

5.3State the purpose of the code provided in lines 1 to 11 TOTAL SECTION 14

Q6— Section header —

6.1Some c ompanies offering home automation services enable users to pay for services using cryptocurrency.

6.1.1Cryptocurrency utilises blockchain technology. Define the term blockchain in this context. (2\

6.1.2State TWO disadvantages of using blockcha in technology for the company. (2\

6.2Compression technologies in home automation systems are used when storing files and when home owner s stream videos from their system Name the most suitable compression file type

6.2.1Image files (1\

6.2.2Video files (1\ hysical integrity issues have been identified on some of the storage devices

6.3Define the concept of physical integrity (2\

6.3State TWO factors that affect the p hysical integrity of storage devices. The website used to monitor the automation system at a home uses both private and public encryption

6.5The Fourth Industrial Revolution is an integration of technologies such as IoT, robotics, AI, AR, big data and VR to change the way people live and work.

6.5.1Define virtual reality (2\

6.5.2Name TWO types of artphone features/sensors that is required for using AR. (2\

6.5.3Give any possible use of IoT in a home automation system. (1\ 15

6.6Home automation devices can be used as zombies.

6.6.1Explain what a zombie is. (2\

6.6.2Why would a c ybercriminal create and use a zombie device? (1\

6.7Protecting one s online identity is vital.

6.7.1State TWO ways in which user can protect their online identity. (2\

6.7.2Motivate why updating software can contribute towards a user ne safety (1\ The AJAX based semantic web search widget shown

6.8Expl ain the purpose of using AJAX as part of a website. (2\

6.8Discuss the role that AI can play in enhancing the semantic search. (2\ Home automation devices must be delivered to households using a courier company. Two different users have used the word RAM to obtain information about

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total150 marks

Paper information

SubjectInformation Technology

Year2025

SessionMay-June

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages15

Downloads5

Examination context

Decade2020s

Years ago1y

Season—

Start day—

Exam period—

Days since exam—

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