IT430 Final Term Subjective 2010

IT430 subjective

2010

Q31. What you understand about Denial of services (DOS) attacks? (2 marks)

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.

Q32. How the Porter’s model helps a firm to devise a plan? (2 marks)

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

Q33. Define electronic signature? (2 marks)

‘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”.

Q34. In SSL handshaking what is mean by Cipher Suite? (2 marks)

SSL supports a variety of encryption algorithm and authentication methods. The combination of algorithms and methods is called a cipher suite. When a client connects to an SSL server, the SSL handshake begins, which means that the two negotiate a cipher suite selecting the strongest suite the two have in common. Thus, the handshake establishes the protocols that will be used during the communication, selects cryptographic algorithms and authenticates the parties using digital certificates.

Q35. What do you know about interactive advertisement? Briefly explain. (3 marks)

It uses a combination of rich media (such as audio, video, animations) and traditional forms (such as print, TV or radio ads) in order to involve customers in advertising process to increase brand recognition. For example, there is a famous business that uses this marketing technique. Its TV commercial induces/encourages viewers to access its website from where customers can select/download various action pictures and background music. Thus, by involving a customer in the advertising process itself, it attempts to increase its brand recognition for the customers.

Q36. How lack of trust barrier can be overcome or minimized? Discuss it briefly (3 marks)

lack of trust barrier can be overcome or minimized through a plan for establishing credibility of an online business is extremely crucial for its success. In this behalf, attention to the needs of the site visitors is very important while designing the web site, since it can be helpful in building trust with customers. For instance, there should be easy to find web pages that answer questions of the visitors. Note that companies with established brands can build trust for online business more quickly as compared to a new company/business without reputation, since a brand conveys expectations about how the online business would behave.

Q37. In the code given below what is meaning of "20%, *, 20%" describe briefly. (3 marks)

Q38. Describe ‘Online Analytical Processing (OLAP)’ in short? (3 marks)

OLAP makes use of background knowledge regarding the domain of the data being studied in order to allow the presentation of data at different levels of abstraction. It is different form data mining in the sense that it does not provide any patterns for making predictions; rather the information stored in databases can be presented/ viewed in a convenient format in case of OLAP at different levels that facilitates decision makers or managers.

Q39. Elaborate the importance of OLAP in decision making support for an organization. (5 marks)

Web answer idea

OLAP and web-based Decision Support Systems are by far the more popular Decision Support Systems these days. Their definition and functionality extends far beyond the scope of this paper and consequently we will not explore these systems in detail. Many other Decision Support Systems are on the market today, but to explore all of them would, for now, be a farcical objective.

Q40. Write down the list of major global issues of e-commerce. (5 marks)

Let us now examine some major global legal issues of e-commerce. They are listed as follows:

Copyright in cyberspace · Domain name and trademark conflicts · Online defamation