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Download the subjective solved paper of IT430 and you can see the sample.
Question No: 31 ( Marks: 2 )
What you understand about Denial of services (DOS) attacks?
In this type of attack, the attacker gains access to the network and then send invalid
data to network services or applications. These services or applications consequently
become unable to perform their normal tasks or functions. Hence, sending a flood of
data to a particular service or computer can cause it to overload or shutdown. This
attack is specially used to take down websites on the internet, when repeated
requests for web pages are deliberately initiated so as to choke down a web server.
Question No: 32 ( Marks: 2 )
How the Porter’s model helps a firm to devise a plan?
Porter’s Model helps a firm to identify threats to its competitive position and to
devise plans including the use of IT and e-commerce to protect or enhance that
position. Porter identified five forces of competitive rivalry described as under:
1. Threat of potential/new entrants to the sector
2. Threat of substitute product or service in the existing trade
3. Bargaining power of the buyers
4. Bargaining power of the suppliers
5. Competition between existing players
Question No: 33 ( Marks: 2 )
Define electronic signature?
‘Electronic Signature’ means any letters, numbers, symbols, images, characters or
any combination thereof in electronic form, applied to, incorporated in or associated
with an electronic document, with the intention of authenticating or approving the
same, in order to establish authenticity or integrity, or both”.

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