Introduction To Computers NCV Level 2 — Document

November 2019 — NCV Level 2 — Introduction To Computers

NCV Level 2 2019 NCV IT

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1.1The truth table for a logic circuit is given in below.

1.1.1Write the Boolean expression for the output Z in terms of input X and Y. (2\

1.1.2 Sketch the IEC for the Boolean expression A (4\

1.2Draw the gate circuit diagram for the following Boolean expression. X + XYZ (6

1.3Write the binary number for hexadecimal number C 16. (2\

1.4Write the binary number for d ecimal number 27 10 (2\ [16]16

Q2— Section header —

2.5\ in the ANSWER BOOK.

2.1A computer virus is a set of instructions that are stored in a file on a diskette.

2.2Modem is a page created in ower oint.

2.3Hardware tells the computer software what to do.

2.4Network layer maintain control and flow over data as well as checking for errors and packe t sequencing.

2.55

Q3— Section header —

3.1Name FIVE basic elements of an information system. (5\

3.2Give TWO advantages of a digital computer. (2\

3.3Describe TWO categories of soft ware. (4\

3.4List SIX uses of computer in the mechatronics department. (6\

3.5Modern computers are regulated by their performance speed processing power and portability.

3.5.1State what a computer processor speed is measured by. (2\

3.5.2What is a computer hard drive? (1\

3.6Networks can be classified according to a wide variety of characteristics.

3.6.1What is an intranet (1\

3.6.2List FOUR security protocols used for securing communication between computers o n the network. (4\

3.7Give THREE advantages of computer networking. (3\

3.8Describe TWO ways to prevent virus infection. (2\

3.9Describe TWO types of computer virus. (2\ [32]32

Q4— Section header —

4.1Explain TWO types of files you would wor k with on a computer. (4\

4.2State TWO reasons why security on computers is important. (2\

4.3Define the following terms:

4.3.1Firewall

4.3.2Network switch

4.3.3

4.4Name FIVE tasks that are perfo rmed by disk cleanup on a computer. (5\

4.5What is meant by formatting a disk (1\ (10040052\ Copyright reserved

4.6Disk drives are the interface between you and data. Name TWO disk drive related problems. (2\ [20]20

Q5— Section header —

5.1Name FOUR common faults which may cause a printer not to work. (4\

5.2State TWO basics of document setup in relation to the page parameters of document. (2\

5.3What is the shortcut key for creating a new document in Microsoft ord? (1\

5.4List FOUR document types ou can create with Microsoft ord. (4\

5.5Describe the process of moving text in a ord document. (3\

5.6Explain the following in relation to spreadsheet

5.6.1What is a workbook

5.6.2What is a cell

5.6.317

Q6— Section header —

6.1State the difference between a search engine and web browser. (2\

6.2Name THREE types of website. (3\

6.3Name TWO basic e mail functions. (2\

6.4Write the following abbreviations out

6.4.13G

6.4.2

6.510

Mark Allocation

Total100 marks

Sections16 + 5 + 32 + 20 + 17 + 10 = 100 marks

Paper information

TitleDocument

SubjectIntroduction To Computers

LevelNCV Level 2

Document typeQuestion paper

Year2019

MonthNovember

Pages5

Downloads4

Examination context

Decade2010s

Years ago7y

SeasonSpring (SH)

Start dayFriday

Exam periodNovember 2019

Days since exam2,537

About Introduction To Computers examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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