Various options are provided as possible answers to the following questions - NSC Information Technology - Question 1 - 2020 - Paper 2
Question 1
Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.1 to... show full transcript
Worked Solution & Example Answer:Various options are provided as possible answers to the following questions - NSC Information Technology - Question 1 - 2020 - Paper 2
Step 1
1.1.1 A person who studies an organisation's current computer systems and procedures and then designs information system solutions to help the organisation operate more efficiently is a …
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Answer
The correct answer is A: systems analyst. A systems analyst evaluates the current systems and provides solutions for improvement.
Step 2
1.1.2 A device that can be used to connect many different peripheral devices with a single connector is known as a USB …
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Answer
The correct answer is A: adapter. A USB adapter allows for multiple devices to connect through one USB interface.
Step 3
1.1.3 The process of discovering new patterns in data using sophisticated software is known as …
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Answer
The correct answer is D: data mining. Data mining involves analyzing large datasets to uncover trends and patterns.
Step 4
1.1.4 The following variable name is NOT valid in Delphi:
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Answer
The correct answer is D: salary1. Variable names in Delphi cannot start with a number or contain special characters that are not allowed.
Step 5
1.1.5 Determine the value of y declared as an integer if the following Delphi statement is executed:
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Answer
Given the statement:
y := ceil(25.0/6) + 30 mod 6 - round(15.0/4);
First, calculate each part:
extceil(25.0/6)=extceil(4.16)=5
30extmod6=0
extround(15.0/4)=extround(3.75)=4
Putting it all together:
y=5+0−4=1
Thus, the answer is D: 1.
Step 6
1.2.1 A technique where two or more disks are grouped together by a special controller to minimise the possible loss of data
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Answer
The correct answer is D: RAID. This technology combines multiple disk drives for redundancy and performance.
