Information Technology Memo 2 (English)

Feb-March 2018 — Grade 12 / Matric — Information Technology

Memo 2018 Grade 12 English

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🎯 150 marks 📄 13 pages 📝 61 items found 📚 5 topics

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Q1— Section header —

1.1.1(1\

1.1.2(1\

1.1.3(1\

1.1.4(1\

1.1.5(1

1.2.1Utilities (1\

1.2.2 POP3 (1\ 1. 2. SEO /Search Engine Optimisation (1\

Q2— Section header —

2.1Ensures that all the components of the computer can communicate with one another Distributes power to the parts that connect to it. (2\

2.2Any ONE Video cards LAN cards Sound cards (1\

2.32.

3.1irmware (1

2.3lashing (1

2.42.

4.1Built in to the motherboard (1 2.

4.2Bui lt in will be used for normal tasks use less power and battery life.

2.5.1Caching is a method to compensate for loss of efficiency/ bottleneck when a faster medium tries to communicate with a slower medium (2\ 2. 5. The operating system has a certain amount of RAM

2.6.1(a\ Multitasking (1\

2.6.1(b\ Multi threading (1\

2.6.2It ensures that the tasks are spread between cores efficiently (multiprocessing\and that each core is working on more than one thread/process at the same period of time (multitask ing (2\ 2.

7.2Delphi (1

2.7Assembler code (1

2.7.4Machine c ode (1\ Information Technology /P2 DBE/Feb. Mar. 2018

2.8Cloud applications oftware which is available to be run from the Internet where most of the processing is done on the cloud by one of the many servers (2\

2.9Allows the user to access the latest version of the files on different devices (2\ TOTAL SECTION B: Information Technology

Q3— Section header —

3.1WAN It covers a large geographical area OR WAN covers a city or country (2\

3.2.1to other users outside the organisation. Internet: A worldwide computer network (3\

3.2.2Extranet: Participants/teacher/regional organiser (1\ 3. 3. .1 Any ONE

3.5Any ONE Upgrade to a faster switch, modem or router. Upgrade the NIC Use a managed switch/intelligent switch (1\

3.6Yes. If a computer had a wired and wireless adapter (1\ 3. 3. .1 Any TWO

3.8.1 Used to monitor, track and collect information without the knowledge of the user. 3. .2

3.8.3 Prevents unauthorised access to the network. TOTAL SECTION C: 24 Information Technology /P2

Q4— Section header —

4.1.1Data integrity refers to maintaining the accuracy and consistency of data stored in a database. (1\

4.1.2The foreign key is a field in the first table (not the primary key of the first table\that is used to create a link to the primary key of the other (second\able in order to establish a relationship. (2\

4.1.3Referential integrity is where a ll record entries in the secondary table must refer to an existing record in the table where the field is a primary key (2\ 4.

4.74. .1 (a\ SELECT * FROM tblGuestHouse WHERE SpaAvailable = true

4.7.2(a\ Sum (NumOf Rooms Number Nights *400 .00\

Q5— Section header —

5.1Loop from length of word down to 1 newWord copy from the word starting at position 1 to the value of the loop counter Inside Loop display the newWord OR for a :=

5.2Temp arr Results [1] numElements length(arrResults\ Loop c from 2 to numElements1

5.5.1The method cannot be used in other forms /units/classes OR The method is not available to be used by

5.5.2(a fNumberOfEntries := Entries (1\

5.5.2(b Mutator (1\

5.5.3determineRegDate must return a string getNumEntries must return an integer value (2\ Information Technology /P2 10 DBE/Feb. Mar. 2018 NSC

5.5(a\ The use of the data type TSchool instead of the object variable name objSchool. OR Replace TSchool with objSchool (1\

5.5(b\ The use of two assignments (:=\erators in one executable statement OR The second := needs to be replaced by

Q6— Section header —

6.1.4Any TWO reasons for preferring the use of an app: Transfers less data/faster speed Better interface Users have more control over what they can do Can receive automatic updates when content is changed on web

6.1.5Push technology (1\

6.1.6Dynamic website is generated on the go will be different for each user Static website consists of pages that display exactly in the same format each time for every user. Concept: Customised web pages verses unchanged web pages

6.1.7Any TWO ways to manage networking communication: Turn off notifications Disable social networking when doing important work /close social networking apps Try to remove oneself from FOMO Switch off data connection

6.2.3 The public key is to encrypt the data he private key remains on secure site to decrypt the data OR

6.3Any TWO disadvantage using mobile device: Costly to download data

6.3Any ONE Determine the location of mobile participants Derive statistics based on information received from writing venues

6.3.3Any TWO ways to improve battery life: Change the brightness setting o the screen Close non essential apps Turn off Bluetooth and Wi

6.76. .1 Any ONE task a DBMS allows the administrator to do: Add, edit and delete data in the database Query or search the data in the database

6.7.2 Distributed database system is a system where parts of a database (the data and the DBMS\are spread/distributed across servers in separate locations (2\

6.7.3 Rollback the transaction need to be cancelled by restor ing the

Topics Identified

Word ProcessingDatabasesProgrammingNetworkingHardware

Mark Allocation

Total150 marks

Sections1 = 1 marks

Paper information

SubjectInformation Technology

Year2018

SessionFeb-March

TypeMemo

PaperPaper 2

LanguageEnglish

Pages13

Downloads2

Examination context

Decade2010s

Years ago8y

Season—

Start day—

Exam period—

Days since exam—

About Information Technology examination preparation

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