Response Essay Example | Topics and Well Written Essays - 250 words - 17

Response - Essay Example When establishing a character, it typically takes more than recurrence (Garver, 1994). Character matters mostly when individuals think on the people who are in the public eye. For actor Charlie Sheen, in spite of film credits including Young Guns and Platoon, he got a hard-drinking ethos after the uncertain behavior of the character he acted on Two and a Half Men came over to his real life catastrophically. On the other hand, even though Tim Tebow has been the Heisman Trophy winner for the NCAA football championship twice, his ethos and fame owe more or less as much too undisputable displays of his Christianity belief. This belief is seen when he performs a kneeling gesture on the field referred to as Tebowing. As it is seen, endorsements are brought by fame. Despite this, he is on Jockey’s underwear and Nike’s payroll that clothed him fully in his advertisements. In conclusion, ethos are seen to be creating quick and at other times desirable connections between arguments and audience. We mostly see different individuals and groups defending and making claims and certainly ask ourselves if we should pay attention to these individuals or groups and if we can put our trust in them (Garver,

Database security issues Research Paper Example | Topics and Well Written Essays - 1250 words

Database security issues - Research Paper Example The paper analyzes security issues concerning both web based and traditional databases. Database inference is a security issue that multi level databases are prone to. Inference can be defined as the process in which a user can infer restricted information from results of queries. Typically, inference occurs when a user at a lower security level is able to put together trivial information accessible at that level to deduce a fact that requires a higher security clearance to access. To be able to access the higher security level information, a user may exploit correlated data. If for instance a user can access the values of H and K, then for a case whereby Z=H*K, the user can correctly infer the value Z even without security clearance. Another inference channel is missing data. When a user receives null values when querying certain fields, the restricted information can be inferred. A practical example is when a user cannot slot in a booking and yet the space is not yet reserved. Through cross-referencing, it can be known that some record is already stored in the given field. Another aspect of the inference problem is caused by value constraints. For example if attribute Y is not classified and X is secret with the constraint X+Y>100, the value of X can be inferred through a query. A technique to remedy the inference problem is through polyinstantiation. This is a relationship whereby elements of a given attribute are associated but have multiple independent instances of instantiation. This may end up creating a new problem of double records in the long run. According to Natan (2003), â€Å"the entries may result in major problems if the database is for mission critical systems like airliners.† The other security issue is SQL Injection. This refers to a scenario whereby unauthorized MySQL statement is run on a database. This technique takes advantage of un-validated user input vulnerability to pass commands from a web