With the exception of week 3 this is by far the most valuable course of its curriculum, and has the best quality materials. The third week, unfortunately, suffers from the same issues as the rest of the curriculum - poor quality of audio and slides, and having you sit through glorified infomercials for IBM security products. But weeks 1,2, and 4 are an excellent introduction to network security and injection vulnerabilities, and earn the 5 stars on their own.

A very fundamental and important course at the beginning of your cybersecurity path. I'm actually surprised that it's the final course in the 4-course sequence and not the first one. All basic elements of the network and principals of its functionality are explained very well. Special thanks to Dmitry Beryoza and Ben Briggs for quality lessons and explanations.

It was a great opportunity for me to take the Network Security and Database Vulnerabilities course offered by IBM with the collaboration of Coursera. After successfully completing this course, I added new things in my professional knowledge and experience. Hope this course will help me in my career development. Thanks to IBM and Coursera team.

I am in school for my BS in CyberSecurity with a focus on Intelligence and Forensic Studies. This course pushed me, and will make me better at my job. This course will ultimately help me to better analyze and detect problems faster, and by doing that I will be able to save companies, or my government millions of dollars in the long run.

This course was as challenging as it was interesting . The courses seem to progress in complexity and I found this quite challenging considering my lack of prior computer systems experience. I'm grateful to Coursera and IBM for this opportunity.

The instructors for all of these modules should have done the first three courses as well. You could hear them and they spoke as if they loved what they did for a living, instead of sounding like they were teaching because they were forced.

It is awesome course and I gained a lot of new knowledge and know the exist of the vulnerability and how to prevent the SQL injection and NoSQL injection countermeasures and etc.... it is a good lesson for me to step up to my career .

Dear Instructors, I want to thank you for your teaching. I also appreciated the supplemental videos and transcrip provided. It added more to my understanding of the course. Respect.. and all the best

With Gratitude

Ferdinand P W

Well structured course, Highly recommend you go for it, if you are here looking something to start your Cyber-security career. it covers all areas in Cyber and that's what makes it a better course.

Thank you IBM.

I really enjoyed this class. It provided a lot of information and cleared up some areas that I was a little confused about. This class will definitely be beneficial when I take my up coming certification exam.

A straighforward course. Databases were a relatively new concept but the first half of the course was all too familiar as I have encounters the concepts in Google IT Professional. A short and concise course!

It;s a very good and informative course.In one o the week the audio was not that good but still it was good...I do suggest this course to the people who want to learn basics of networking and about databases

This course was a little more challenging for me than some of the others, But I learned so much and loved it. There are some pre-Knowledge of code and simple stuff prob needed but that is assumed I think.

This course was very challenging, but easy to follow based on the lecture and the printed notes. I am now ready to move on the the next set of courses, realizing that cybersecurity is evolving constantly.

A great review on network infrastructure, while providing security-based content that was relatable to not only the material, but also to current cybersecurity trends.

This course will give you a indepth knowledge on network protocols, addressing layers and Databse vulnerabilities in MySQL and many more. This is an excellent course.

It's been an great opportunity to study this course and knowing about the industry behind it and Thank you for the lectures for teaching, I had a good time studying.

This course was brief only introduction to Network and Database security.

I request Coursera and IBM to launch advanced course also continuing CyberSecurity program.

Up to this point, the Network Security & Database Vulnerabilities course is the most difficult. So much information addressed in some videos - hard to consume all.

the course was excellent. I think I have gained new knowledge and skills in this networking field and waiting to learn even more additional skills in this field.

O curso é ótimo. Networks, SQL Injection, Vulns, OS Commands, aprendi muito. Agradeço a todos os instrutores que ajudaram a preparar e ministrar o curso.

Informative courses that presented concepts, examples of actual use and requirements to assure the safety and accuracy of cybersecurity applications.

Highly recommend this course to anyone who wants to forward their career in Cyber security. The contents were highly informative and relevant.

Thank you I was able to understand the whole Network Security thing and was able to widen my understanding about Database Vulnerabilities

Estou muito satisfeito na realização deste curso, tenho certeza que irei obter melhores oportunidades de emprego a partir de agora.