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 …
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A. systems analyst. A systems analyst is responsible for analyzing and designing IT solutions to help organizations improve efficiency.
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 …
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is C. hub. A USB hub allows multiple USB devices to connect to a single USB port.
Step 3
1.1.3 The process of discovering new patterns in data using sophisticated software is known as …
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is D. data mining. Data mining involves analyzing large datasets to identify patterns and relationships.
Step 4
1.1.4 The following variable name is NOT valid in Delphi:
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is D. salary1. In Delphi, variable names cannot start with a number, hence this is an invalid identifier.
Step 5
1.1.5 Determine the value of y declared as an integer if the following Delphi statement is executed:
y := ceil(25.0/6) + 30 mod 6 - round(15.0/4);
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
First, calculate each part:
ceil(25.0/6)=ceil(4.1667)=5
30mod6=0
round(15.0/4)=round(3.75)=4
Putting it all together:
y=5+0−4=1.
Thus, the value of y is 1, making the correct answer C. 1.
