Computer Science
Class-VIII
Chapter-7 Computer Threats
A. Tick the correct answer:
1. Hardware errors frequently damage______ on new PC and disks.
a. data b. colour c. shape d. password
Answer: data
2. When a _____ is infected with a virus, the computer crashes and restarts every few minutes.
a. software b. CPU c. computer d. mouse
Answer: software
3. ______ interactions are a significant source of problems.
a. hardware b. malware c. software d. all of these
Answer: software
4. ________ can delete files, destroy data and can even prevent your computer from booting.
a. antivirus b. software c. hardware d. viruses
Answer: viruses
5. Your computer may get infected by copying infected files from CD and ______.
a. pen drives b. CPU c. modem d. internet
Answer: pen drives
6. ______ virus loads itself to the boot sector of the floppy disk.
a. polymorphic b. boot sector c. worm d. script
Answer: boot sector
7. _____ virus is written using script languages.
a. trojan b. boot c. worm d. script
Answer: script
8. A computer worm is a standalone malware computer program that replicates itself in order to spread to other____.
a. programgs b. networks c. hardwares d. computers
Answer: computers
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