Discussion
Match the following and choose the correct answer from the codes given below :
| List I | List II |
|---|---|
| (a) Boot virus | (i) Self-encrypted virus designed to avoid getting detected by scanner |
| (b) Macro virus | (ii) Malware |
| (c) File virus | (iii) Infects the boot sector of floppy disks or the master book record |
| (d) Polymorphic virus | (iv) Virus that spread in application software |
Answer: B
The correct matching is a-iii, b-iv, c-ii, d-i.
- A boot virus infects the boot sector of floppy disks or the master boot record (printed 'master book record').
- A macro virus spreads through application software, in macros of documents and spreadsheets.
- A file virus is matched with the general term malware.
- A polymorphic virus encrypts and changes itself with each infection to avoid detection by scanners.
Boot virus with (iii) and polymorphic virus with (i) are the clear pairs. Only one option has both, since the near miss swaps (i) and (ii) for the file and polymorphic viruses.
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