Which of the following statements are correct?

1.Adobe Acrobat is an examples of proprietary product.

2.Microsoft office is an example of commercial operating system.

3.Linux is open source software.

4.Ubuntu is an example of an operating system.

5.Firmware is an example of a mobile operating system.

A4 & 5 only

B3 & 4 only

C1, 3 & 5 only

D1, 3 & 4 only ✓ Correct

Correct answer: (D) 1, 3 & 4 only

Explanation

Statement 1 is correct because Adobe Acrobat is a proprietary product.

Statement 3 is correct because Linux is open source software.

Statement 4 is correct because Ubuntu is an operating system built on Linux.

Statement 2 is wrong because Microsoft Office is application software, not an operating system.

Statement 5 is wrong because firmware is embedded control software, not a mobile operating system.

Proprietary software has restricted source code, unlike freely modifiable open source software.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.