Information Technology Paper 2 (English)

Feb-March 2014 — Grade 12 / Matric — Information Technology

Past Paper 2014 Grade 12 English

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🎯 180 marks ⏱️ 3h 📄 21 pages 📝 105 items found 📚 5 topics 🔑 1 key info

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Q1— Section header —

1.10\ in the ANSWER BOOK.

1.1

1.2Which of the following refers to a type of file system? NTFS SMT TCP/IP IRC (1\

1.3In the following pseudocode of statement the incrementing of a counter is dependant on the value of B The

1.4Which of the following is the domain part of the e mail address user1@mybusiness.co.za? co.za user1 mybusiness user1@mybusiness.co.za (1\

1.5The diff erence between a firewall and a proxy server is that proxy server

1.6Which loop structure would be best suited to find the information of a customer in the database of a big company with more than 10 0 records Single loop Unc

1.7Identity theft is the raudulent action of stealing a user s green ID book while he/she is online. use of driv software to automatically allow access to private

1.8

1.10Which of the tasks numbered (i\ (ii\ (iii\ /are the responsibi lity

2.1The following diagram representing some of the components on a motherboard was given to o ne of the v olunteer who want

2.1.1The volunteer observes that t he CPU contains registers. Briefly xplain the function of registers. (2\

2.1Explai why instruc tions loaded in cache memory are processed faster by the CPU than instructions stored in RAM. (2\

2.1The basic process of how a CPU operates consists of four stages, namely fetch, decode, execute and store . Briefly describe what takes p lace during the DECODE stage. (2\

2.1.4hat is the physical conn ection between the CPU and the north ridge called

2.1ifferent slots such as AGP and PCI Express , are found on a motherboard (a\ What is the purpose of the AGP slot? (1\

2.1.6All computer systems contain RAM and ROM. (a\ State TWO major differences between RAM

2.2.1Which ONE disk controller EIDE or SATA will yo u recommend for connecting high performance hard drives? (1\

2.2.2Explain TWO aspects that influence the access time of a (2\

2.2.3Disk caching will improve performance in terms of the storage and retrieval of data Explain hat disk caching is. (2\ Thrashing may occur

2.3One of the organisers i s an enthusiastic supporter of o ource oftware (OSS\ Tabulate the difference between open

2.4.2Describe THREE responsibilities of the operating system of a computer system regarding the management of memory. (3\ Some of the organisers complained that some websites show less content when displayed

2.5Give TWO reasons why the local hard drive of a PC will not suitable for backup purpo ses (2\

2.6.1Fro m the organisers perspective ist THREE advantages of having a local network at each of the centres. (3\

2.6What type of topology is most likely to be used with the network (1\

2.6In the context of computing explain the difference between a router and a switch (2\

2.7The organisers created a help desk to support the volunteers at the different

2.7.1Neither Firefox nor Internet Explorer is an antivirus software application. Identify the category of software that both of these application

2.7Apart from protecting a computer a gainst viruses, state TWO other forms or useful protection that antivirus software normally

Q3— Section header —

3.1The website uses cookies.

3.1.1What is a cookie

3.1.2Explain how and why cookies can be misused. (2\

3.2One of the organiser s computer is sending spam e mails to all the athletes without his permission.

3.2.1Explain what a spam e mail is. (1\

3.2.2What can be done to stop a computer from sending spam? (1\

3.2Suggest TWO ways in which the recei of spam can be limited.

3.3The organisers want to ensure that athletes details are kept secure when they sign into their profiles on the website

3.3.1Define encryption (2\

3.3.2igital certificate i s needed in order to use SSL as an encryption protocol. (a\ What type of encryption does SSL use? (1\ (b\

Q4— Section header —

4.1The entrepreneur designed and manufacture shirts and sweaters which he advertise on his website.

1.1What is the term used for conducting transactions such as buying and selling products the Internet? (1\

4.1.2Name TWO advantages of advertising and selling these products the Internet instead of from a shop (2\

4.1.3DoS attacks could have a negative influence on h is business. Explain what a DoS attack is and wh y it could influence his

4.2The entrepreneur uses Google to find young athletes in South Africa to help promote his products

4.2.1Why w the search phrase used in this example produce different results when used in another search engine?

4.2.2Recommend a way that will improve the search results for the information he requires. (1\ 12

4.3The entrepreneur would like to make his business as environmentally friendly as possible.

4.3.1In computing terms, describe TWO ways in which he can achieve mak ing his business as environmentally friendly as possible (2\

4.3.2recently bought the latest computer equipment for his business. What would you recommend the e ntrepreneur do with his outdated computer equipment (1\ 10] TOTAL SECTION C:

5.1The tblAthletes table below is c urrently used to store athletes details and event results. Field Name Data Type

5.1.1Which field in this table is the most suitable primary key? (1\

5.1.2Identify TWO fields in the t able with poorly chosen data types and recommend more appropriate data types. Write down only the

5.1How will they ensure that the date of birth will always be entered in the format DD/MM/YYYY (1\

5.1What measure can be taken to ensure that the field containing the athlete name will never be left blank? (1\

5.1.5Athletes may take part in a maximum of six events. (a\ Explain why the current design of the database table is not sui table to capture the events in which the athlete

5.2User and technical documentation was provided with the software that i s used to manage athlete information

5.2.1Describe TWO features of good user documentation apart from page layout and the format of th e text. (2\ 14

5.2.2The technical documentation should include a printout of the programming code (a\ Give TWO reasons why comments should be included in programming code. (2\

5.3The programmers used defensive programming techniques and error handling in their programming code

5.3.1What is defensive programming (1\

5.3.2During a test of the software that was developed the program stop ped working with the following error message: 'execution halted

5.4The interface below is used to capture information of athletes. Study the diagram and answer the questions that follow.

5.4The interface contain context sensitive help. What is context sensitive help (1\ nter i

10.5Infor mation Technology /P2 DBE/ Feb. Mar. 2014

5.4.2Critically comment on TWO aspect the user friendli ness of the user interface

5.4.3Desc ribe TWO ways , excluding the use of context sensitive help, in which the user interface can be improved to ensure that valid data will be entered. (2\

5.5An algorithm needs to be developed as part of the management software that the programmers are bus y developing

5.5.1Explain why it is important to develop an algorithm before a program is coded (2\

5.5.2The following algorithm has been designed to find and display the results of a specific athlete but it contains a few logical errors Line nput the name

5.5.3After the software has been developed with no logical errors , use complain that names they enter cannot be found although the name appear in the array. (a\ What

5.6The programmer who created the application software used object orientated programming (OOP\ principles. Study the cla ss diagram below

5.6.1Identify a suitable data structure that can be used to store a collection of athlete objects. (1\

5.6.2Explain why class shown in the diagram violates the principle of data encapsulation.

5.6.3ddress is a parameter in the constructor of the class. Why is it necessary to also have a setAddress(Address\ method (1\

5.6.4Two constructors are included in the class diagram. This is known as overloading. (a\ Explain why it is advisable to have these two constructo rs from the

5.6.5The following method call was made: IsValidDateOfBirth(day,month,year\ Explain why an error message will b e displayed when this method call is executed. (2\

5.7The following data structures can be used to store and manipulate data in a program: A two dimensional array An a

5.7.1A list of names of the 15 cities where some of the athletics meetings will take place (1\

5.7.2All the details of each of t he 15 organisers of the athletics meetings including their nam and contact details (1\

5.7.3The title of athletics meeting (1\

5.7.4Booking of seats at one of the athletics meetings (1\ TOTAL SECTION D: 18

Q6— Section header —

6.1The organisers have been offered either an AD SL or a 3G Internet connection to connect the various admin istrative offices to the head office in order to

1.3ADSL is an asymmetric service Briefly explain what asymmetric service mean (1\

6.1.4Explain what a is. (2\ The organiser looked at the performance of one the computers in the newly installed network using

6.2.5The screenshot of the t ask anager was taken during normal operation of the computer. Why does this computer not necessarily need a faster CPU? (1\ Not a

6.5.1Give an example of a social dia website that could have been used to publish information about the athlete. (1\ Is the organiser allowed to

6.6The organisers are hosting a website with information about the different athletics meetings . It has been suggested that the website should contain hyperli nks.

6.6.1Explain the advantage of ing hyperlinks (1\

6.6.2Name TWO other features of a well designed website. (2\

6.6Websites are normally accessed using a web browser and a URL. Explain w hat a is and g ive an example of a URL as part of your answer (2\

6.7Fingerprint readers are used to let authorised organisers enter the administration office.

6.7What is technology such as a fingerprint reader called? (1\

6.7Name TWO other example of this type of technology that could also be used

6.8The network at the head office uses the client server model.

6.8.1Name ONE other type of network model. (1\

6.8.2State TWO advantages of the client server model. (2\

6.9he Ethernet network communication s tandard is used at the head office.

6.9.1Ethernet uses packet switching. Briefly e xplain the concept of packet switching

6.9.2Ethernet uses a protocol to transmit and receive data. (a\ What is a protocol (2\ (b\ Name the protoco

6.9.3Which topology is used whe Ethernet is implemented? (1\

6.9.4What is the name of the organisation that evaluates and approves network standards? (1\ TOTAL SECTION E: GRAND TOTAL:

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total180 marks

Sections14 = 14 marks

Key Information

Email Addressuser1@mybusiness.co.za

Paper information

SubjectInformation Technology

Year2014

SessionFeb-March

TypePast Paper

PaperPaper 2

LanguageEnglish

Pages21

Downloads7

Examination context

Decade2010s

Years ago12y

Season—

Start day—

Exam period—

Days since exam—

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