Defensive programming is the practice of creating or designing code in a way that will avoid issues before they can affect the system. The idea behind it is that developers will not be able to predict every sort of permutation of input or error that can affect the system they are designing. To combat this, programmers write their code in a way that will prevent or mitigate vulnerabilities that can be caused when unforeseen issues arise. A commonly seen example of defensive programming occurs when user input is required to query a database. SQL injections are a type of cyberattack that uses a vulnerability in the way the system process queries. It works when queries are not coded properly, and users are able to ‘inject’ SQL commands using the available input (Imperva, 2021). A common way this can happen is when user input is not formatted a certain way, i.e. made into a string before processing. Defensive programming in this instance would include ensuring all inputs are turned into strings or integers before querying. Additionally, ensuring that all invalid commands, or input that do not meet the correct criteria for querying, output a message instead of simply allowing them to go through the system is a good defense.
Defensive programming should definitely be a part of the architecture of any software or system. A common practice of defensive programming is ensuring that any unnecessary code is removed. Not only does this make a program require less resources to run, it reduces the chance of attackers using vulnerable code by removing it entirely if it is unnecessary. In that way, defensive programming allows for more efficient processes while also protecting systems from attack.
Imperva. (2021, March 11). What is SQL injection: SQLI attack Example & Prevention Methods: Imperva. Learning Center. Retrieved December 30, 2021, from https://www.imperva.com/learn/application-security/sql-injection-sqli/#:~:text=SQL%20injection%2C%20also%20known%20as,lists%20or%20private%20customer%20details.
Wiesen, G. (2021, February 20). What is defensive programming? EasyTechJunkie. Retrieved December 30, 2021, from https://www.easytechjunkie.com/what-is-defensive-programming.htm
Longfellow's Unique American Hero in Evangeline A one of a kind American saint unique in long individual in Evangeline: The clarification of Adam's long individual in the United States is something else. Through the portrayal of the story sonnet Evangelin, the idea of American Adam can be seen in different manners. R. W. B. Lewis investigated the journey for American Renaissance journalists and made a one of a kind American writing in the 1955 content "American Adam in the Nineteenth Century: Innocence, Tragedy and Tradition". In 1847, the American writer Henry Wadsworth Long Fellow distributed a long story sonnet about the ejection of the Acadians called Evangeline, delineating an imaginary individual Ivagne. Phosphorus' quandary. This sonnet got in vogue and got acclaimed. Evangeline oak is a vacation destination in Louisiana. The melody "Acadian Driftwood" recorded by The Band in 1975 speaks to the development and Acadian development. Antonine Maillet composed a novel called Pélagie-la-Charrette because of huge wreck. It was granted to Prix Goncourt in 1979. Fantastic PréPark is Canadian National Historic Site of Grand-Pére, Nova Scotia State and is protected as a landmark to the outcast. It incorporates the commemoration church and the sculpture of Evangeline, the subject of long individual verse. In 2018, Canadian history specialist and writer A.J.B. Johnston distributed YA's epic called The Hat, propelled by the occasion in the Grand Prix of 1755. On the off chance that the understudies meet a long individual before attending a university, at that point the writer they know isn't in this assortment: Evangeline, "Ha Faasha's melody", "Million's romance". This long individual's assortment is our "revisionist" long individual in the second 50% of the twentieth century and nearly perceives renowned journalists who may have thought of them, aside from sonnets like "Hymns of life" can not. On the off chance that verse understudies don't really peruse Long Fellows, he just tuned in to him (in an ordinary case) and they need to know why he is so celebrated. These are a ton of extraordinary writers. Long Fellow is one of only a handful barely any writers who joined new works. He made a few best sonnets ever. Sonnets of the Evangeline, Haihuasha tunes, and long individual stories, for example, Miles Stendish's tribute give a sentimental perspective on the early American history and vote based goals. Evangelin is perhaps the longest sonnet at any point composed by an essayist. It is mainstream through the differentiation everything being equal. It is perused, cherished and thought in an unassuming bungalow (Wagonknecht P.85). Evangelin is difficult to misrepresent his style at home and abroad, which is the principal long verse that rose above his own time in American writing (Wagonknecht P.85)>GET ANSWER