Information Technology Paper 2 (English)

November 2013 — Grade 12 / Matric — Information Technology

Past Paper 2013 Grade 12 English

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🎯 180 marks ⏱️ 3h 📄 17 pages 📝 108 items found 📚 5 topics 🔑 1 key info

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Q1— Section header —

1.10\ in the ANSWER BOOK.

1.1

1.2

1.3Which ONE of the following is NOT part of the machine cycle? Fetch data Decode instruction Encode data Execute instruction (1\

1.4hardware interrupt is a method used by peripherals to gain the CPU ttention when they need to communicate. used to stop a printer when it continues printing an unwanted print job. used by the memory of a computer to interrupt (or stop\ a

1.5

1.6Which ONE of the following Boolean expressions is correct EXPRESSION RESULT (1\

1.7

1.8takes place when the sender address and other parts of mail header are altered to appear as though the e mail ori ginated from a different source oaxing hishing poofing

1.9Which ONE of the following is xample of correctly constructed URL for secure website? http://www.question bank.co.za https://www.myonlineshop.co.za

1.10The two files below are examples of music files Which ONE of the following file extensions is most likely to be associated with

Q2— Section header —

2.1The managers at the centres were given choice use one the following two devices

1.5TB HDD Tablet nVidia Tegra 1.2 GHz CPU 1 GB RAM GB SSD

2.1.1Give TWO reasons why the managers requested to be issue d with the laptop rather than the tablet (2\

2.1.2tablet uses an SSD for storage of data and files (a\ What does the acronym stand for? (1\ (b\ List THREE

2.1The tablet system recovery partition on its SSD. (a\ Explain what partitioning of a disk mean (2\

2.1Both a tablet and a laptop use cache memory. Explain the purpose of cache memory in a computer system

2.1DDR RAM improves the transfer of data between the RAM and the CPU when compared to SD RAM Explain how this improvement acco mplished.

2.1Give TWO reasons why a tablet and a laptop cannot use the same type of RAM (2\

2.2ifferent CPUs use different instruction sets. What is a CPU instruction set (2\

2.2Both types of CPU upport multithreading. Explain the concept of multithreading (2\

2.2Name TWO physical aspects of CPUs that are built in during the manufacturing process

2.3Would the software used for the edit ing of video be considered application software

2.5he results need to be printed each week. The volume of printing is large because of the high number o f contestants at each venue. The managers

2.5Spooling is a technique that is used to accommodate large volumes of printing . Explain what spooling

2.5.3The USB port used to connect the printer uses serial data transfer. Explain the difference between serial and parallel data transfer.

2.7The error message 'Missing DLL files' appeared when one of the managers wanted to use an application installed on his laptop

2.7.1Give ONE possible reason why the D L files are missing

2.7.2What needs to be done so that the manager will be able to use the software again? (1\

2.7.3When new software ins talled on a computer system running a Windows operating system an entry is made in the registry of the system

Q3— Section header —

3.1Some one equest the managers to e mail them the video

3.2The organisers made t he videos available as podcasts

3.2.1Explain the concept of podcasting

3.2.2Why will p odcasting be an advantage for eople who want to wa tch the video more than once? (1\

3.2.3Name ONE example of an electronic medium that can be used to inform friends and family when a new podcast is available (1\

3.3Friends amily who want to download multi media files of all the events must p referably have a broadband Internet connection.

3.3.1Explain the term broadband (2\ ADSL is an example of cabled broadband connection. (a\ Is ADSL a digital or

3.3.3Give example of a nother cabled broadband connection. (1\ [10]10

Q4— Section header —

4.1he parents of the contestants are concerned about personal information such as contact details that are published on the compe tition s website.

4.1.1Justify the parents concern by describing TWO ways in which personal information provided on a website can be misused (2\

4.1.2Suggest ONE measure that a contestant can take to protect personal information that need to be published on the Internet

4.2Even though personal information can be protected an activity known as social engineering could be used to gain access to the information

4.2.1Explain what social engineering is.

4.2.2Describe ONE way in which social engineering can be prevented. (1\

4.3One of the contestant has been removed from the competition because he tweeted insulting remarks about nother contestant

4.3What is meant by the term tweet (1\

4.3What term is used to refer to the practice of publishing insulting remarks about people on an online or public forum?

4.4Some of the contestants want the organisers to create a blog for the competition

4.4.1What is a blog (1\

4.4.2How would the contestants be advantaged by the blog? (1\

4.5Entries must be done electronically on the website equest was made that there must also be an alternative way to handle the entries because of the digital divide in

4.6Members of the IT team can work on the voting system from home instead of at the head offic e. Discuss the disadvantages of working from home from the

Q5— Section header —

5.1Before the start of the competition the IT team had to create a user friendly interfac e for

5.1.1The category options of the competition are Dance, Drama and Music. The following two con trols have been suggested: (2\ Suggestion A: Suggestion B: Give TWO reasons why S uggestion A is a better choice.

5.1.2The input control in the screen shot below may cause users to select both options when the

5.1.3Only contestants between the age of 13 and 18 are allowed to take part in the competition. The following con trol is used to enter the age of the contestants: Explain why data entered using this control will be valid but not

5.2A database has b een created with two tables ( tblContestants and tblSchools \ containing data about the

5.2.1When the secretary tries to add data of newly registered contestants into the tblContestants table , an error me

5.2.2It has been decided to use a database rather than a text file to store the data about the contestants (a\ Give TWO reasons why a database is a better structure to keep data about contestants than a text file.

5.2.2(c\ and the relevant given table tblContestants tblSchools with specific reference to the fields involved. (2\

5.2.3When developing a program to manipulate the database it was decided to work with objects. (a\ Define an object in computer programming terms. (2\ (b\

5.3The name and score of each contestant in the Drama category of the competition are saved using two parallel arrays named arrNames and arrScores

5.3.1The output will not be correct due to TWO logical errors. Identify the instructions causing the logical errors writ

5.3.2The name of the contestant with the highest score must also displayed. Write line of pseudocode that need to be added to the given

5.4Programmers who create the software were requested to create a test plan along with other technical documentation to ensure that the software up to standard.

5.4.1The system design document (SDD\ is one of the first document developed. List THREE aspects that form part of the SDD. (3\

5.4.2List THREE aspects that should be included in the test plan. (3\

5.4.3Why is it import ant to include hardware and software requirements in user documentation? (1\

5.5A text file is used to store the date, time and password of each user that logs onto the local server at each centre where the elimination rounds of the competition take ace. Example of the content of

5.5.1The function/ method called in line 6 uses the following two parameters Hour

5.5.2The nction/ method called in line 7 will use try protection blocks. Write down the general structure of a

5.5.3Write down the logical condition to complete the statement in line 8 of the given algorithm (2\

5.4If this algorithm is correctly coded and executed it will cause an error in line 4 due to a mistake that was made in line 10.

Q6— Section header —

1.1Is Bluetooth a suitable technology to use in this scenario ? Motivate your answer. (2\

1.2hat is the transmission rate of standard Bluetooth devices Mbps 3 Gbps\ (1\

1.3An a udience member voting controller oes not connect to the wireless network although the member is within

2.1Explain what a relational database (2\

6.2.2Give the name of ONE example of a existing database system that ould be used to create this database

3.1Explain what is meant by streamed (2\

6.3Name TWO components that are required to be able to stream a live event (2\

6.3.3An entrepreneur is recording the live broadcast on his home computer . He plans to sell opies of the record ing Discuss the

6.4.1State TWO advantages of a wireless network over a cabled network. (2\

6.4.2State TWO additional hardware components that are required to

6.4.3Which networ k protocol would be appropriate to use for the wireless network (1\

6.5While uploading results, o ne of the organisers noticed suspicious activities on his computer. He suspects unauthorised software is running on his computer to

6.5.1State TWO types of programs that c be used to retrieve data from a computer without the permission

6.5Explain how the organiser could check whether there any unauthorised software running on his computer. (1\

6.5Describe TWO ways in which the organisers can prevent their computer from being accessed by

6.6Some judges use Apple Mac computers while others use computers running on the Microsoft Windows op erating system. Both these operating systems are proprietary software

6.6.1Describe THREE functions of an operating system. (3\

6.6.2State TWO advantages of a proprietary operating system over an open source operating system. (2\

6.6.3plain why software designed for the Apple Mac cannot run on a computer that uses the Microsoft Windows operating system

6.7The organisers of the competition ha been advised to use cloud storage for the video material

6.7The cloud server probably uses RAID technology. Briefly explain what RAID is. Expanding the a

6.7.2Several levels of RAID can be implemented. Motivate why the cloud server will probably use RAID 1 rather than RAID (2\

6.7.3Cloud computing can be beneficial for green solutions in terms of hardware. Explain this statement

6.8Projects such as this create a var iety of IT related job opportunities.

6.8.1Give a summary of the main responsibi lities of a systems analyst. (2\

6.8.2Apart from a database administrator and a systems analyst, name TWO other types of IT specialists who will most probably be employed by the organiser of this project. (2\

6.9ICT provide s more effective solutio ns for the capturing of data and generatin

6.10.1Give ONE example of a well known Internet search engine. (1\

6.10.2Give TWO hints for conducting an effective Internet search AND give an example with each hint which is applicable to a search for the website for this competition. (4\ TOTAL SECTION E: GRAND TOTAL:

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total180 marks

Sections10 = 10 marks

Key Information

Websitewww.myonlineshop.co.za

Paper information

SubjectInformation Technology

Year2013

SessionNovember

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages17

Downloads3

Examination context

Decade2010s

Years ago13y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2013

Days since exam4,736

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