One of the most popular methods of encrypting data is Caesar cipher where original data is replaced by a key character like if key is -2 than 'a' will be replaced by ' y' , 'b' is replaced by 'z' and so on.
If the key is 2 i.e., every letter is replaced by its next to next letter means the letter 'A' will be replaced by 'C', the letter 'B' is replaced by 'D', and so on then what will be the replacement of the word 'CoMpUtEr'.

1. Eciorwygt
2. eQOrwVtG
3. eqroWVTG
4. Eq0rWvGt

Which of the following is a way to avoid Plagiarism when using material from the Internet ?

(i) Citing

(ii) Paraphrasing

(iii) Referencing

(iv) Embedding

Choose the correct option :

1. (i) and (ii) only
2. Only (i)
3. (i), (ii) and (iii) only
4. (ii) and (iv) only

Pratham is excited to use a new software which is freely available to download but he cannot modify or change the source code. Pratham is using :

1. Freeware
2. Open-Source Software
3. Both (1) and (2)
4. None of the above

Which one of the following software comes under Open-Source Software category ?

1. Photoshop
2. MS-Paint
3. Linux
4. Windows