1.1 Various options are provided as possible answers to the following questions - NSC Information Technology - Question 1 - 2022 - Paper 2
Question 1
1.1 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.... show full transcript
Worked Solution & Example Answer:1.1 Various options are provided as possible answers to the following questions - NSC Information Technology - Question 1 - 2022 - Paper 2
Step 1
1.1.1 … is a wireless technology that allows devices to communicate wirelessly over short distances, typically 10 m or less.
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Answer
The correct answer is B (Bluetooth), as it is a wireless technology specifically designed for short-range communication.
Step 2
1.1.2 A … is a small text file used to store customised settings for a website on your local computer.
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Answer
The correct answer is D (cookie), as cookies are small text files used to store user-specific settings on web browsers.
Step 3
1.1.3 A rule-based form of artificial intelligence where human experience is coded into a computer to make it possible for the computer to make decisions:
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Answer
The correct answer is A (Expert system), which uses predefined rules to make decisions based on input data.
Step 4
1.1.4 A DDoS attack makes a website unusable due to …
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Answer
The correct answer is C (Extremely high volumes of traffic that request data from the website), as DDoS attacks overwhelm a server with excessive requests.
Step 5
1.1.5 Determine the value of sWord if the following code is executed:
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Answer
To determine the value of sWord:
The loop executes for each character in the string sText. The condition I Mod 5 = 0 checks if the current index is divisible by 5, meaning every fifth character from the end is added to sWord.
The indices that satisfy this condition for 'abcdefghijklmnopqrstuvwxyz' (indices start from 1) are: 5 (e), 10 (j), 15 (o), 20 (t), 25 (y).
Thus, sWord will be 'ytoj', giving us the correct answer as D.
