Xinyi Mao

Web application is a program and it relates to web server and its databases. Hacker love to hack web application because if they can install a malware on web application or inject its SQL, hackers can steal the information of users who was visit the website and gain benefit by selling or using the users information. SQL injection makes me biggest…[Read more]

we store data i separate tables because it looks clear and users can see the relationship between each database and to use these data more efficiently. also, if one of database loss or be modified, technicians can restore the specific database. To design an ERD you need a Visual Paradigm, and you need to set up primary key and secondary key and…[Read more]

In this chapter I learned about several functions about C# which includes initialize elements and how to write their functions and how to set the scope. One programming language similar to C# is JavaScript.
C# is common language infrastructure framework. JavaScript is designed for specific goals.
Similarities: they would respond if they found…[Read more]

Database is very important for information technology because all of company’s data are stored in several databases and databases become the final target for cybercriminal. So securing database is important for IT auditor. In this chapter, we learned that MySQL interact with other application software, and that authorize privilege to end users a…[Read more]

As an IT auditor, especially audit hardware devices, we should know whether the company has good devices to work for the company. One reason that leads to data leakage is the computer devices are too old to service the data transaction and cause a series of vulnerabilities. If we know the storage is important for the company and checking the…[Read more]

This chapter taught us the IP addresses and the component of the network which includes Network topology, addressing and routing, for example, WANs and LANs, media access control, and network hardware. This networking lab activity makes me a deep impress about how a network work. and how and what exactly we need to set up LANs. I learned that…[Read more]

Installing multiple virtual machines does pay a lot of effort, however, when we really using different operating system, we can learn more different computer operating system and have our own user experience and have understanding of each computer’s advantages and disadvantages. I think configuring 3 different types of operating system is h…[Read more]

Domains stored a company’s resource, and only the company have right to use it. Because many hackers and cybercriminals want to steal company’s resource for the money, protecting domains is very important for a company.
A domain is like a website that allows internet users to access in and use the resource. A company needs domains so that its…[Read more]

Built a PC can make us know what basic component a PC need and how PC works as a whole. It helps us to remember the material that the lecture covered and give us the experience to build a PC which can increase the awareness that to build a device and let it successfully work, we need to be careful and be cautious. Same thing with auditing. Also,…[Read more]

IT auditor maintain company system. They design a process to audit technology, to figure out what the vulnerable/weakness the system have, report to IT support and ask them to improve it. So IT auditor need to be detailed-oriented, and have basic technical knowledge. IT auditor is necessary because now cyber-security is a crucial topic in business…[Read more]