Banking Computers Science SBI Clerk Assistant Exam Held on 21-02-2015

  • question_answer
    A difference between a worm and a virus is that _____.

    A)  A virus must be attached to a carrier

    B)  there is no difference at all

    C)  Delete the text and then retype it.

    D) A worm cannot harm a computer like a virus can.

    E)  Viruses expand the master boot record.

    Correct Answer: A

    Solution :

    [a] Computer worms are similar to viruses in that they replicate functional copies of themselves and can cause the same type of damage. In contrast to viruses, which require he spreading of an infected host file, worms are standalone software and do not require a host program or human help to propagate. A virus must attach itself to a program or document and is spread by traveling with the carrier. A worm, however, can travel by itself (Security Awareness: Applying Practical Security in Your World By Mark Ciampa).


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