Information Technology Memo 2 (English)

May-June 2016 — Grade 12 / Matric — Information Technology

Memo 2016 Grade 12 English

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🎯 150 marks 📄 13 pages 📝 55 items found 📚 5 topics

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Q1— Section header —

Q2— Section header —

2.1(a\ Any ONE Cache is a small amount of high speed mem ory where data and instructions likely to be used next by the CPU, is stored eliminating the need to fetch it from the slower RAM. Concepts: Saving time

2.1.1(c\ Any TWO Faster at boot up time /faster access time No moving parts so less easily damaged /bigger life/lasts longer /more reliable Uses less power

2.1.2(a\ Any TWO Provides a user interface I/O management (Input/output management\ Process management Manages system memory File management /Storage man gement

2.1.2(b\ (i\ Android: designed for mobile device or example of mobile devices (1\

2.1.2(b\(ii\ Unix: designed to be used mostly i network or server or desktop environment (not mobile\ (1\

2.1.2(c\ Recently accessed web pages are stored locally on the hard drive and are retrie ved faster from cache the next time they are accessed

2.2.1Any ONE Manage Maintain Control computer resources. Add more functionality for specific management tasks (1\

2.2.2Any ONE Internet filter Spam blockers Pop up blockers Anti spam programs Phishing

2.2.3Any O NE explained aspect Programs often share files which are often spread over different folders, making it impossible to m anually find all the files. If you delete one of these shared files, another program that

2.2.4(a\ Backup: makes a copy of current files are used for operational recoveries /to use if file is lost or damaged

2.2.4(b\ Lossy compression some insignificant/undetectable portion of data is sacrificed/lost when compression takes place. (2\

2.3.1Virtual memory Also accept: sector

2.3.2When the RAM is full , the operating system will move data ins tructions that are not being used to the hard disk to free up

2.4Any TWO OSS: Access to source code OSS: Freedom to adapt and change code to own needs OSS: Access to community of users/support (2\ TOTAL SECTION B:

Q3— Section header —

3.1Any TWO High level of expertise needed to set it up Need a high level of secu rity Malware can spread easily If network develops a problem, no one can work A central problem with server could lead to loss of

3.3.1Any ONE Cheap to install Easy to install Flexibility of cables High bandwidth over short distances (1\

3.3.2Any TWO Not sensible because: Expensive cabli Need expert to install these cables More suited to a backbone network Sensible because High bandwidth Many users (2\

3.5.3To provide Internet access Internet service provider (1\

3.5.4Fi/ Wireless connectivity (1\

3.5Any ONE Short range Speed of transfer is slow Reduced battery life (1\ GPS (1\ Any ONE Marketing/Advertising when in close proximity to the venue

3.7.1The server will notify the device that a new message has arrived and automatically download the message to the device mail is automatically downloaded to the device without the user having to check his e

3.7.2Any TWO Attachments can use up storage Attachments are not automatically downloaded Limited to the number of messages that can be stored on the device May not have app to open attachments Not easy to read certain

Q4— Section header —

4.1.1Any TWO Only 1 option can be selected at a time Only the valid/ pecific options are available Saves time no need to type Do not have to check spelling, uppercase

4.1.2Any ONE Use a mask edit (Delphi\ Use 2 combo boxes one for hours and one for minutes Give an example of time format in the text box (1\

4.1.3(1 mark for valid with correct example (1 mark for correct with correct example Valid adhere to the specifications e.g. hours must be in the

4.2.1ComputerNumber is the primary key in the tblC omputers table and must be placed in the tblUser table as a foreign key The ComputerNumber field in both tables

4.2.2(a\ SELECT Logout Time FROM tblUser WHERE PaymentMethod = ebit Card ORDER BY

4.2.2(b\ UPDATE tblUser SET PaymentMethod Credit Card WHER UserI No = 7311017564 076

4.2.2(c\ SELECT Count(tblUser .UserI No\ AS Count CashIds FROM tblUser WHERE PaymentMethod Cash

4.2.2(d\ SELECT * FROM tblUser HERE ogin Time 12:00 \ AND (LoginDate = 2016/02/25

4.3Audit trail record who makes changes to the database and when the changes were made (2\

4.1Any TWO Using credit card or loyalty card when purchases are made With the c ompleti ons forms for competitions

4.4.2Data mining (1\ TOTAL SECTION D SC

Q5— Section header —

5.1.1Once (2\

5.1.2Infinite/ Endless loop/ Continuously Never ending (2\

5.2.1Space is created in memory to keep the a ttributes of the specific object The constructor is used to create an instance of the object class Instantiation is the creation of a real instance or particular

5.2.2(a\ Accessor: to get acces private data/ eld /attribute values (b\

5.2.3get log in minutes get log out minutes get log in hour get log out hour alcu late the number of hours calculate the number of minutes convert hours

5.3Is F ound true? randomNum Is randomNum number? Counter Dis

5.40 1 0 0 0 1 1 1 (2\ TOTAL SECTION E 11

Q6— Section header —

6.1.1Radio waves /explanation of how the technology works (1\

6.1.2Any TWO Item can be tracked Easy to do stock take/can scan tag Don t have to be very close to read the tag Can read more than 1 tag at a time Can r ead hidden tags Interact with data stored on the tag

6.2.1pecialised network software skills and knowledge are require d to manage the network Also accept an example of specialised duties Do not accept: maintenance of the network (1\

6.2.2Any TWO Use a password with many characters Include special characters Do not use common words Do not use your personal details Uppercase and lowercase

6.2.3Remote desktop (or suitable example\ uses software to view the scre en of the server on the local computer and control the server remotely. (or suitable example\ is a secure connection to the server

6.2.4Any ONE Install a firewall Install ant virus software Keep anti virus softw are up to date Any other correct answer (1\

6.2.5Any TWO Allocating user rights Adding and removing users Making backups Any other correct answer Do NOT accept: issuing passwords and avoiding virus attacks (2\

6.4Peer peer protocol /Internet (1\ Any ONE IP address is open to other users/security of your compu ter is compromised

6.6Any T HREE Easy to navigate interface /smaller screen Managing Internet data use Less memory Less storage

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total150 marks

Paper information

SubjectInformation Technology

Year2016

SessionMay-June

TypeMemo

PaperPaper 2

LanguageEnglish

Pages13

Downloads2

Examination context

Decade2010s

Years ago10y

Season—

Start day—

Exam period—

Days since exam—

About Information Technology examination preparation

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