System Security Essay Example | Topics and Well Written Essays - 500 words

System Security - Essay Example The virus attack can only be possible to a system via removable storage devices (zip drive, jazz drive, and floppy drive) which mean a system can be protected from such attacks if the external removable devices are pre-scanned before its usage. During the current era of globalization, every LAN is connected to the biggest LAN i.e., internet one way or the other. Nearly all the financial institutions and government bodies have connected their systems over the internet to give their authorized users an ease of access from any part of the world. On one hand this has alleviated the boundaries between different countries and made communication possible in real-time between two ends of the world but on the other hand it has given an edge to the cyber criminals to breach through the complex systems by finding its loopholes. Due to the threat of hacking, none of the national security and financial data is safe from these cyber criminals unless well protected by using different pro-active techniques such as: 1) Data encryption 2) Firewalls 3) Identifying the loopholes in the current system and creating a patch for it. The encryption technique has been successfully used for data transfer between two ends over the internet because even if the data is tapped by a hacker, he cannot decrypt it since he is inaccessible to the public key for decryption. The firewall softwares are used to guard against the brute force attacks and access from an invalid domain but due to the loopholes which exist in the current operating systems these firewall softwares occasionally fail. Up till now the hackers are usually focusing on financial institutions for the monetary benefits, but in the future these hackers could also be used to manipulate the national security data and the personal ids to wage any degree of chaos as desired. This situation is expected only because we have created the space for this threat by ourselves by storing every personal data and

Critical reader response from education class(Teaching English as an Essay

Critical reader response from education class(Teaching English as an Additional Language) - Essay Example One of the most important things teachers can do to support literacy development of students is to choose and expose them to quality literature. Children's literature is particularly rich with illustrations, images, genre and cultures; it reflects the maturational development process with regards to cognitive, emotional and social, as well as language development. Reading strategies are developed to retrieve information from 3 categories: 1) meaning cues, 2) visual cues, and 3) structural or syntactic cues. There are eight steps to implementing think-aloud strategies: 1) choose a small portion of the text, 2) chooses a few strategies, 3) communicate the reading purpose, 4) model the think-aloud strategy to the students as you read the text aloud, 5) instruct students on annotating the text, 6) discuss and think through the strategies used, 7) show students how to generalize reading strategies, and 8) reinforce think-aloud techniques with follow-up lessons. As an EAL teacher, I feel t his is an excellent method for helping L2 learners to deal with literature. Absolutely they should use a winning strategy for digesting literature; at best they usually struggle with the vocabulary to the point that frustration takes over and the richness of the literature is lost. Students develop a much stronger command of the language through open reading of literature among peers. Their fluency and diction develops quickly in the presence of a native speaker of L2. In the case where cultures are vastly different, the students need a lot of support to connect with and internalize the story. Often open discussion occurs in comparing and contrasting the cultural differences allowing not only for a deeper understanding and connection to the story, but also to peers. This further reinforces L2 bonding as well as building self-confidence in expressing ideas in L2. This think-aloud strategy helps develop the self-confidence of the L2 learners in their ability to read and comprehend lit erature at the L2 level. They also begin to apply this strategy to their other core L2 subjects, which resulted in higher academic achievement. They even begin to challenge themselves to speak L2 with peers, further reinforcing their self-confidence and pronunciation. The component of the think-aloud strategy that is probably understated is the one of prediction. Often L2 learners don’t have highly developed critical thinking or creativity skills. Predicting what would happen throughout the story is a new challenge for them as it causes them to imagine new possibilities for where the author may be leading the story. As they begin to work with the stories more, their abilities at prediction sharpen, even to the point that they increase their critical thinking skills in other academic areas, such as science and math. At first, the visual cues are critical for them; a picture makes fighting vocabulary and learning through contextual clues easier. With time, they increase their v ocabulary base to independently take on significantly more difficult stories. They enjoy being able to discuss the behind the scenes meaning, messages, and values being taught by the author. Role playing to understand what is happening in the story is another approach that can be