Computer Applications Technology Grade 12 P2 2015 Memo

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE GRADE 12 SEPTEMBER 2015 COMPUTER APPLICATIONS TECHNOLOGY P2 MEMORANDUM MARKS: 150 This memorandum consists of 11 pages.

Downloaded from hlayiso.com 2 COMPUTER APPLICATIONS TECHNOLOGY P2 (EC/SEPTEMBER 2015) SECTION A QUESTION 1: MATCHING ITEMS QUESTION 2: MULTIPLE-CHOICE QUESTIONS 1.1 C (1) 2.1 C (1) 1.2 G (1) 2.2 B (1) 1.3 F (1) 2.3 C (1) 1.4 K (1) 2.4 B (1) 1.5 D (1) 2.5 A (1) 1.6 I (1) 2.6 A (1) 1.7 A (1) 2.7 A (1) 1.8 B (1) 2.8 B (1) 1.9 E (1) 2.9 D (1) 1.10 H (1) 2.10 A (1) [10] [10] QUESTION 3: MODIFIED TRUE OR FALSE 3.1 False Phablet  (1) 3.2 False Broadband  (1) 3.3 True  (1) 3.4 False Cloud computing  (1) 3.5 True  (1) [5] TOTAL SECTION A: 25 Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/SEPTEMBER 2015) COMPUTER APPLICATIONS TECHNOLOGY P2 3 SECTION B QUESTION 4: SYSTEMS TECHNOLOGIES 4.1 4.1.1  Takes up less desk space.  Uses less electricity.  Good image quality / high resolution.  Available in larger sizes.  Additional ports.  High contrast ratio. ( Any 2) 2 4.1.2 Graphics cards allow computers to produce graphics and images more quickly.  1 3 4.2  Require batteries.  More expensive.  Can easily be removed / stolen.  Signal strength can be affected by electrical sources (interference). ( Any 2) 2 4.3 4.3.1 Biometric input is a process that allows a unique biological feature of a person to be used as a password or in access control.  1 4.3.2  Voice recognition  Fingerprint recognition  Iris recognition  Retina scanning  Signature verification ( Any 2) 2 4.3.3  Voice recognition devices will not work if you have flu or cold that affects your voice.  Diabetes may affect your eyes and result in inaccurate iris scanning.  Cuts or burns to your fingers, hands or face may result in identification process not working.  Biometric devices are expensive. ( Any 2) 2 5 4.4 4.4.1  Save on external storage.  Zip / compress large files.  Change pictures to jpeg files.  Delete unwanted files.  Delete duplicate files.  Uninstall unwanted programmes. ( Any 2) 2 4.4.2 Cloud storage is storage space on another server which you access through the Internet.  1 4.4.3  The amount of space that is provided for free is usually small.  To get extra space you have to buy it at a monthly or yearly fee.  People that you share files with might delete your files by accident.  You need Internet access. ( Any 2) 2 5 Copyright reserved Please turn over

Downloaded from hlayiso.com 4 COMPUTER APPLICATIONS TECHNOLOGY P2 (EC/SEPTEMBER 2015) 4.5 4.5.1  Learners who cannot use their hands properly can use the speech recognition program to convert speech to text.  Visually impaired learners can use speech recognition to give commands to the computer, etc.  Visually impaired learners can use speech recognition to convert speech into text, etc. ( Any 1) 1 4.5.2  Braille keyboards / braille ‘display’  Magnification devices  Large-key keyboards  Braille printers ( Any 1) 1 2 4.6 4.6.1  Provides the user with an interface to work with computer / hardware  Responsible for allocating hardware resources.  Coordinates all activities of the system.  Provides basic security functions.  Provides access to storage.  Controls boot-up process  Manages the programs running in memory, etc. ( Any 2) 2 4.6.2  Do not need to install software.   Applications do not take up your hard disk space.   Users do not need to update software on individual computers as it is done from the server.   Independent of any operating system.   Users can access their applications and data from any computer connected to the Internet.   Most of these applications are free.  ( Any 2) 2 4.6.3  Too many background programmes.  Computer may be infected by malware/virus.  Too many programs open at the same time.  Software updates being automatically downloaded.  Defective application ( Any 2) 2 6 4.7  Virtual memory is a feature of the OS by which hard disk space can be used as extra memory when RAM is insufficient to load or run programs.   It will slow down the performance of the computer.  2 2 [25] Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/SEPTEMBER 2015) COMPUTER APPLICATIONS TECHNOLOGY P2 5 QUESTION 5: INTERNET AND NETWORK TECHNOLOGIES 5.1 5.1.1  Files can be accessed from any computer in the network.  Files can be transferred without the use of portable devices.  Software can be shared by many users.  Hardware such as printers can be shared by many users.  Increased security – user access to network can be controlled from a single point.  A single Internet connection can be shared by many users.  All programs can be installed and updated from a single location.  From teaching point of view, you can get software which allows you to broadcast to all computers in the classroom.  Internet access can also be controlled.  Facilitating communication ( Any 2) 2 2 5.2 A file server is a powerful computer that can be used to provide resources and services to all the computers linked together in a network.  1 1 5.3 5.3.1 Uncapped means that there is no limit on the amount of data that can be downloaded or uploaded.  1 5.3.2 Video conferencing takes up a lot of cap (data bundles) because it makes use of video technology.  1 2 5.4 Shaped connection: priority is given to e-mails, web browsing, Internet banking and "normal" downloads via a web browser’.  Unshaped connection: treat all protocols the same.  2 2 5.5 5.5.1 Pop-up are windows usually of advertisements that appear automatically without your permission when you are on Internet.  1 5.5.2 They may relate to spyware infection on the computer.  1 2 5.6 5.6.1  Do not have to stand in queues/saves time.  Do not have to carry large amounts of money around.  Have access whenever you are on-line/24/7.  Safer as you do not have to go to the bank.  Can keep track of your accounts.  Cuts down on travelling/transport costs.  Usually cheaper bank charges, etc. ( Any 2) 2 5.6.2  Use of once-off/per session passwords sent to specified cellphone numbers.  Automatically logging off after a fixed time period  Passwords/Pin numbers  SMS notification of transactions.  Secure protocols such as SSL.  On-screen keypads for entering pin numbers, etc. ( Any 1) 1 3 Copyright reserved Please turn over

Downloaded from hlayiso.com 6 COMPUTER APPLICATIONS TECHNOLOGY P2 (EC/SEPTEMBER 2015) 5.7 5.7.1 Caching is memory that stores frequently used data, instructions or webpages so that they display more quickly when they are opened again. 1 5.7.2  Reduces bandwidth usage   Allow previous visited pages or data used to load quicker. 2 3 [15] QUESTION 6: INFORMATION MANAGEMENT 6.1 6.1.1  Faster than collecting by manual means.  Cheaper – you can save on research costs.  More accurate as responses go directly into the system.  Quick to analyse.  Easier for researchers to manipulate data.  More honest responses.  More flexible as the order of the questions can easily be changed. ( Any 2) 2 6.1.2  Spreadsheet can be used to do calculations/create graphs.  Database to extract information via queries. ( Any 1 combination: application + motivation) 2 4 6.2  Anyone can make changes to the content.  Authority not established.  Content is not always verified.  Content is not always formally edited. ( Any 2) 2 2 6.3 The item has copyright.  1 1 6.4  APA   Harvard 1 1 6.5  Check the information against more than one source and cross- reference them to see whether the information can be substantiated.  Check the bibliography or other references where you can access other sources that support the information.  What is possibly missing from the source?  Check that the information is free of errors – sources that have spelling and grammar mistakes might be inaccurate in other ways as well.  Check whether the source ties in with what you already know.  How often has the information been used? ( Any 2) 2 2 [10] Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/SEPTEMBER 2015) COMPUTER APPLICATIONS TECHNOLOGY P2 7 QUESTION 7: SOCIAL IMPLICATIONS 7.1 7.1.1 Phishing refers to attempts of people to con users into revealing personal and confidential details such as PIN numbers and passwords by posing as a legitimate organisation.  1 7.1.2  There may be spelling errors in the message.  The e-mail may be sent from a web address other than the expected one.  The message would ask you to follow a link and then to enter sensitive information.  Will ask to confirm confidential details such as passwords, etc.  Inspect the properties of any links. ( Any 2) 2 3 7.2  When making a backup.  When it is free software. ( Any 1) 1 1 7.3 7.3.1 Sniffer attack is a process in which a small program or device reads data packets being sent to someone over a network.  1 7.3.2 DoS is denial of service which means a process where a network or computer is receiving huge amounts of useless data.  1 2 7.4 7.4.1 The process in which criminals use a person’s Internet connection to connect to the Internet without his or her permission.  1 7.4.2 Identity theft is the process which a criminal uses the identity of a person dishonestly.  1 2 7.5  It can reduce the personal and social interaction between people.  People may become less physically active which could lead to obesity and ill-health.  The overuse of technology may cause physical harm to people, e.g. RSI.  Technology processes may result in unwanted by-products that pollute the environment.  E-waste can harm the physical environment  People can use Internet for harmful research. ( Any 2) 2 2 [10] Copyright reserved Please turn over

Downloaded from hlayiso.com 8 COMPUTER APPLICATIONS TECHNOLOGY P2 (EC/SEPTEMBER 2015) QUESTION 8: SOLUTION DEVELOPMENT 8.1 <h1>Computer Applications Technology</h1> 1 1 8.2 <body bgcolor=”blue’> (any colour except ‘black’ can be accepted) 1 1 8.3 8.3.1 Sort or filter according to class.  1 8.3.2 Import from (Get external data)  1 8.3.3 Because SUMIF ADDS together and a function to COUNT is needed to determine the number of learners in 12B.  1 8.3.4 Conditional formatting  1 4 8.4  Save in an earlier/lower version.  Open on a PC that has the correct software installed.  Download and install a patch.  Try opening in another program e.g. Open Office. ( Any 2) 2 2 8.5  Consistency; everything looks the same.  Easier/faster/convenient to format.  Automatic Table Of Content, etc. ( Any 1) 1 1 8.6  Cancel print jobs.  Restart a print job.  Pause a print job.  Change the order in which print jobs are handled. ( Any 1) 1 1 8.7  Captions are always consistently positioned.  The format of the captions is always consistent.  Captions will update when any relevant change is made in document.  Will show in any table of figures/graphs/tables.  Captions are automatically numbered consecutively. ( Any 2) 2 2 8.8 8.8.1 A validation rule can be added to specific field that restricts values of more than 100.  Validation rule: >=0 and <=100  2 8.8.2 Required property  1 3 [15] TOTAL SECTION B: 75 Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/SEPTEMBER 2015) COMPUTER APPLICATIONS TECHNOLOGY P2 9 QUESTION 9: INTEGRATED SCENARIO 9.1 9.1.1  Cheaper than laptop equivalents.  Less likely to be damaged by being dropped or knocked over.  Less likely to be stolen.  Cheaper to repair and upgrade, etc. ( Any 2) 2 9.1.2  More expensive than desktop equivalents.  Can easily be damaged by being dropped or knocked over.  Expensive to insure as they are often stolen.  Only run for 2 to 4 hours without needing access to power.  Expensive to repair and upgrade, etc. ( Any 2) 2 9.1.3  RAM  CPU  HDD ( Any 2) 2 6 9.2 9.2.1 DVD writer  1 9.2.2 Blue ray drive  1 9.2.3 DVD-R disks are used once.  DVD-RW disks can be erased and new data be added.  1 3 9.3 9.3.1  Can integrate between the different applications.  Interface is standardised across the different applications.  Functions are standardised across the programs.  Cost – cheaper to purchase an office suite.  Easier to manage updates. ( Any 2) 2 9.3.2 Site licence – software can be installed in a number of computers, as long as the computers are owned by the same company.  2 4 9.4 9.4.1  Has no copyright restrictions.  Has no restriction as to the number of computers it can be used on.  Source code is available for free and may be edited.  May be distributed in a changed form, subject to the original licence agreement terms. (Any 2) 2 9.4.2  Open-source software is not supported in all geographical areas.  Some people may not understand the technical help offered on the Internet.  No-one to hold responsible.  Various versions of the same software.  Resistance to change/comfortable with what they know.  Not as widely used.  No guarantee of quality.  One can generally only get open source software from Internet. (Any 1) 1 3 9.5 9.5.1 Device driver – software that enables devices to work and communicate with your computer.  1 9.5.2  On the disk that came with printer.  Supplied as part of driver database in the operating system.  Download driver from the Internet. ( Any 2) 2 3 Copyright reserved Please turn over

Downloaded from hlayiso.com 10 COMPUTER APPLICATIONS TECHNOLOGY P2 (EC/SEPTEMBER 2015) 9.6 9.6.1 An activation code – Is a series of numbers characters/letters that gives access to the key/code that unlocks the security or the protection of a program.  1 9.6.2  To ensure that the program is loaded only on the number of computers specified on the license.  Reduce piracy/certify that program is an original copy/increase security.  To link the copy of the software to you.  To register you as user to enable help and online support. ( Any 2) 2 9.6.3 A custom installation allows more experienced users to choose the components of the program that must be installed.  A typical installation contains the options and components of the software that most people want.  2 5 9.7 9.7.1  Use print preview before printing.  Print on both sides of the paper.  Change document formatting, for example, smaller font size/reduce margin size.  Print two or more pages to one sheet.  Communicate/Save electronically. ( Any 2) 2 9.7.2  By switching off computers when not in use.   Use energy saving devices e.g. LED screens.  2 4 9.8 9.8.1  They are much faster than normal hard drives.  They cannot be damaged easily/No moving parts/Durable.  Energy-efficient  They run quieter than traditional hard drives. ( Any 2) 2 9.8.2 They are expensive.  Smaller capacity than traditional hard drives.  2 4 9.9 9.9.1  Use software that updates your data automatically.  Backup data only, not programs (have CD or Internet to retrieve these).  Use external storage medium (external hard drive).  Keep backup in other location in case of theft, fire.  Do maintenance of data to have no unnecessary duplicates.  Archive large files not used often.  Check that backup works by opening backed up files once in a while. ( Any 2) 2 9.9.2  External hard drive  DVD  Flash drives  Blue ray disks  CD ( Any 1) 1 3 Copyright reserved Please turn over

Downloaded from hlayiso.com (EC/SEPTEMBER 2015) COMPUTER APPLICATIONS TECHNOLOGY P2 11 9.10 9.10.1  You do not need the program in which the document was created to open it.  The program required to read these documents is free/widely available.  Users cannot easily make changes to the document. ( Any 2) 2 9.10.2 Adobe Reader  1 3 9.11 9.11.1 An anti-virus program is a database with unique virus definitions. The anti-virus software detects the virus by comparing it to its database of definitions.  If the database is not updated, new virus definitions are not available to detect new viruses.  2 9.11.2 No.  Viruses can install themselves on systems via any portable storage media.  2 9.11.3  Disable ‘auto run’ features for flash drives.  Scan all portable storage media before using them.  Avoid downloading/using pirated software.  Scan attachments when/before opening them.  Do not open attachments from unknown sources  Do not interact with/click on pop-ups that appear on the screen. ( Any 2) 2 9.11.4 The virus is moved into an area where it cannot cause harm.  1 7 9.12 9.12.1  Facebook  Twitter  Linkedln  MySpace  Second Life, etc. ( Any 2) 2 9.12.2 Create a duplicate user’s name and profile picture from their existing account.  1 9.12.3  You have to have access to the Internet to be able to communicate.  Increased risk of identity theft, etc.  Many people have false information on their profiles.  Increased risk of loss in productivity of employees/learners  Quantity of communication at the expense of quality of communication. 1 4 TOTAL SECTION C: 50 GRAND TOTAL: 150 Copyright reserved Please turn over