Posts

Network Security

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    We use computer systems everyday, and whether we intentionally go into websites to browse or go on social medias or not, without us knowing, many apps and devices like TVs, tablets, mobiel phones exchange information. As a lot of data can be exchanged online and can also be exposed, and as there are always security holes that come up, one needs to always make sure the os is up to date. The computer systems can be vulnerable to hacking or robbery(with leaked location information), and more so.   There are a lot of security threats of computer systems, for instances, viruses and malware, data  breaches, internet scams and spams. For each threat, malware’s symptom would be showing slow system performance as stealing information is happening and even rendering the system unusable. Phishing can lead to unathorized transactions , usually wire transfers and P2P transfers (That are hard to recover), identity theft(also that lead to financial damage), it often relies on...

IT Careers- What's out there?

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 Everybody talks about IT.   Everybody admires those who work for IT.   I am one of them and also will be! But question is, is "IT" just only about 'software engineer'? Are there more into that?   Even though it could sound simple, there are lots of different fields within IT industry that one can do.   Here are some categories of jobs.  Database Administrator Systems Analyst Data analyst/Data Scientist Software developer Network Engineer Project manager Cybersecurity officer Programmer Data Quality Manager Data Architect User Experience Designer Security Engineer Customer Support/Desk Technician IT Support Technician   And more! Depending on the job one wants to look into, there are different types of qualifications and certificates that can be helpful. While it is not mandatory in some fields to have a Bachelors or Masters degree to be in IT field, it is helpful to obtain one to be able to have base knowledge and exposure bef...

Documenting A Day

  A Day using word processing application Word At my work we use Word processing applications to create procedures and logging my team’s work for taking care of inquiries that flew in from customer representatives and branch representatives, as I am in the back office wire transfer team. For the procedure creating, we do use these functions: Indent function for automatic indentation for certain parts Different fonts Different size of the fonts , and boldness For the procedure that is ommitted, in the process of modifying it, we use th e underline or highlight . There are multiple screenshots to show the examples, screenshots are attached within the document. When the tables are created, we use table button that allows one to simply adjust the cursor for determining the number of rows and columns. To make sure it is printable, margin needs to be checked and adjusted with the printer setting. The orientation is important fo...

Traveling Through a Network

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  Hello class,  Hello class,  Ping and traceroute  are used for troubleshooting internet connection problems. This shows a clear picture of how a packet travels through a network. When you compare the ping command results, you can see the differences between the domain address' ping results depending on where they are based on, geologically. Here is the result from google.com. You can see the minimum was 5 ms, and maximum 6ms. all the packets sent were also received, made a round trip without any lost packet, that means they were successful in making through the network.  I tried this  website called "naver.com" from Korea. This is a Korean website but the domain contains .com for the address, and its result made it through and received without losing packets. The difference is the travel time. the round trip timed was interesting, when I thought google should take shorter(as I am located in U.S), naver.com showed way faster time result than google. I reali...

Web/Mobile App Critique-MindBody App

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  I reviewed the   app "MINDBODY".  This is an This is an  app is for all-in-one type platform for those who look for fitness or martial arts classes nearby.  This is location  based service and they provide the deals that they have with the facilities. I happened to download the app to use a promotion deal for a pilates class. Once I booked a class from the location, the app will send you an automated email letting me know when the class is going to happen, and send me reminders when the class is coming up, you can book more classes and also look for other classes around you with different categories.    1. Usability  This app is  pretty straightforward and intuitive. You would not really need an instruction or manual to use this app and play with it. You can see that the app is made with a lot of considerations of the user experience and made easy to navigate.  One thing that  is not the easiest is to find a specific studio o...

Programming languages

I was able to make a dog and cat have a conversation about eating food, putting a muffin between them, with munching sound using Scratch. I have never used Scratch and I am not familiar with the coding knowledge. But with Scratch, it was easier for me to understand how the coding works. I was not able to put the sprites together in one screen, and it was not too clear for me to organize the order of the events well. I looked up tutorials again to solve the problems. I have learned more about how the computer understands from programming through this exercise and thought it could be more fun and accessible than I thought. Comparing to what I have gone through in the text book sections 2.8 to 2.11, on the text book, Scratch provides and lets the user use the high level language as the user can understand what would be expected when the computer executes the commands in Scratch, whereas machine language is lower level and hard to understand for the user(usually). There are several hi...
 Hello!  My name is Seolhee.  I am from South Korea, and I love coffee and food!