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Computer security, Lp 1 Ht09, EDA263/DIT641

Status: Avslutad
Öppen för svar: 2009-10-12 - 2009-10-28
Antal svar: 34
Procent av deltagarna som svarat: 6%
Kontaktperson: Åsa Samdell»


Your own effort

1. How many hours per week did you spend on this course?

We mean total time, that is, it comprises the time you spent in class and the time you spent on your own work. Try to estimate the average time over the entire study period.

34 svarande

At most 15 hours/week»10 29%
Around 20 hours/week»12 35%
Around 25 hours/week»7 20%
Around 30 hours/week»4 11%
At least 35 hours/week»1 2%

Genomsnitt: 2.23

- Started the course late, and did not catch up.» (At most 15 hours/week)

2. How large part of the teaching offered did you attend?

33 svarande

0%»1 3%
25%»2 6%
50%»2 6%
75%»13 39%
100%»15 45%

Genomsnitt: 4.18

- Only attended the laborations and one lecture» (25%)
- lectures were really interesting» (75%)
- Almost every lecture.» (100%)


Goals and goal fulfilment

The course syllabus states the course goals in terms of learning outcomes, i.e., knowledge, skills and attitudes to be acquired by the student during the course.

3. How understandable are the course goals?

33 svarande

I have not seen/read the goals»8 24%
The goals are difficult to understand»0 0%
The goals give some guidance, but could be clearer»9 27%
The goals clearly describe what I am supposed to learn»16 48%

Genomsnitt: 3

- The actual course is on a significantly lower level than the goals seem to specify. The topics are barely even touched in the course.» (The goals give some guidance, but could be clearer)
- Course was very well design.it really give the taste of computer security..specially labs.» (The goals clearly describe what I am supposed to learn)

4. Are the goals reasonable considering your background and the number of credits?

Answer this this question and the succeeding one, only if you do know the course goals.

29 svarande

No, the goals are set too low»4 13%
Yes, the goals seem reasonable»23 79%
No, the goals are set too high»2 6%

Genomsnitt: 1.93

- The people taking the course are likely to know the most trivial parts of computer security already, such as the concept of "password".» (No, the goals are set too low)
- I think this goal* is quite a huge goal which one can only acquire from doing some practical work with it. I don"t think i acquired this goal since we really did not carry out any practical stuff on it. * The student shall be capable of making a security analysis of different types of systems and suggest ways to improve security.» (No, the goals are set too high)

5. Did the examination assess whether you have reached the goals?

30 svarande

No, not at all»0 0%
To some extent»11 36%
Yes, definitely»10 33%
I don"t know/have not been examined yet»9 30%

Genomsnitt: 2.93

- A lot of reading, hard to fit it all into one exam.» (To some extent)
- Just bulk of information gathering instead of some actual technical expertice.» (To some extent)
- exam was very versatile.questions were intrusting.» (Yes, definitely)
- don"t know yet results of examination but assume to get not less then 4.» (I don"t know/have not been examined yet)
- Missed the examination, due to a mix up on the dates from my side.» (I don"t know/have not been examined yet)


Teaching and course administration

6. To what extent has the teaching been of help for your learning?

34 svarande

Small extent»2 5%
Some extent»8 23%
Large extent»22 64%
Great extent»2 5%

Genomsnitt: 2.7

- The lab assistants sometimes provided quite insightful advices.» (Some extent)
- More Guest lectures should be added,specially from industry» (Large extent)

7. How were the lectures?

34 svarande

Poor»1 2%
Fair»1 2%
Adequate»10 29%
Good»20 58%
Excellent»2 5%

Genomsnitt: 3.61

- The level of the lectures was much lower than that of the book.» (Fair)
- They were not interactive, and the students were so passive and this made the lectures some how boring and hard to keep concentrating on. » (Adequate)
- both lecturers were very pleasant and smart » (Good)

8. What was the best about the lecture part of the course?

- Good lecturers»
- -Guest lecture -practicals examples»
- the way of teaching of both was outstanding and i didnt face any difficulty in any lecture.»
- Allowed people without knowledge of security whatsoever to learn things.»
- simple to understand»
- Good overview.»
- Great with slides.»
- understandable and reasonable»
- over all the lectures were intrusting and provide good knowledge.»
- good slides»
- Must be the lecture»
- It was not boring.(what a relief). This is because introductory courses are always boring because of their abstract nature, this was quite interesting. »
- up-to-date examples from real life»
- Tog upp det viktigaste man behövde kunna.»
- The explanations»
- The lactures give very clear idea about the topic.It was described in a very good manner.»

9. What can be improved about the lecture part of the course?

- at bit less info each time»
- Assume that students either know the most trivial basics, or at least assume that they will read the chapter summaries of the book.»
- lectures are easy to learn»
- Fuzzy about security policies since this was important. Use a computer to display slides.»
- lecture slides could be improved, downloads, book, lecture, offprint consists in some part of a lot of redundant information here it would be nice, to reduce this, or mark it out more clearly that one could read either .. or»
- maybe could be closer to the reality security matters»
- Since there were two persons responsible for the lectures we heard the same material twice, but it was just a small part.»
- it was well organized.i dont think some thing else to be added»
- use powerpoint instead of OH»
- More technical examples instead of just concepts.»
- Common style/layout on slides would be nice for readin afterwards.»
- More examples»
- Don"t know really, wouldn"t wanna change anything»
-
- lectures may become interactive and involve students in some way to become more interesting and attractive.»
- More guest lectures from real life situations.»
- I think no improvement needed at all.»

10. How was the Identification and Authentication lab?

34 svarande

Poor»0 0%
Fair»2 5%
Adequate»7 20%
Good»17 50%
Excellent»8 23%

Genomsnitt: 3.91

- Probably very simple for unix/c programmers, but good for the rest of us...» (Adequate)
- I wish programming tasks for further generations wouldn"t be so tough)» (Adequate)
- The most useful lab, since it contained non-insecure programming (certainly not secure though) and overall required security-focused thinking.» (Good)
- Great to get hands on experience!» (Good)
- It was easy, but I have a lot of unix experiance.» (Good)
- Small» (Good)
- i very much apreaciated the practical work, i think this is the best way to learn security, i would have liked a bit more (maybe some more "unsafe" functions to replace ..) - still lab was a very good part of the lecture» (Excellent)

11. How was the GPG lab?

34 svarande

Poor»0 0%
Fair»3 8%
Adequate»4 11%
Good»18 52%
Excellent»9 26%

Genomsnitt: 3.97

- Could easily be replaced with 20-30 minutes of reading in the book.» (Fair)
- a good way to get to know pgp - missed a bit the "challenge"» (Adequate)
- Enerving at times» (Adequate)
- Great to get hands on experience!» (Good)
- It was a bit too long but interesting subject and application were chosen.» (Good)
- I learned a lot!» (Excellent)
- Useful theoretical and practical information» (Excellent)
- Great fun, actually.» (Excellent)

12. How was the Vulnerability Scanning with Nessus lab?

34 svarande

Poor»3 8%
Fair»8 23%
Adequate»13 38%
Good»7 20%
Excellent»3 8%

Genomsnitt: 2.97

- Keeping the computer updated can be learned from any newspaper. The rest can be replaced with 5 min reading in the book, plus 10 min of tutorial reading if you want to use Nessus.» (Poor)
- felt a bit like "first push this button .. after that this button" - i know it is a lot of work to supervise then (that"s why we have almost nothing like this at my home university ,) - if you would make the other labs more challenging one could maybe drop this last one ...» (Fair)
- Abit short» (Fair)
- Would probably have been better if it wasn"t for the problems with Nessus.» (Fair)
- Very simple, and results were apparently "random" according to lab teacher.» (Fair)
- Was OK, but Nessus was buggy.» (Adequate)
- The first part didn"t work.. » (Adequate)
- I felt like a robot with this lad. do this, do that :) I guess there was no other way around that» (Adequate)
- The version of the software which was available in the lab was not working properly, but the subject was interesting.» (Adequate)
- To many bugs, our group lost two hours due to that the program had to be restarted to work (which we didn"t know).» (Adequate)
- Rather interesting» (Excellent)

13. What was the best about the lab part of the course?

- dont know»
- -interesting subject -learn a lot of things during each lab -teacher are always here to help us or answer our questions»
- Some of the assistants gave insightful feedback and asked questions which required more security-focused thinking.»
- we have to learn something, so do it yourself.»
- 2nd and 3rd lab.»
- definitely the first lab»
- That there were labs at all!»
- authentication»
- GPG lab was so cool :)»
- Hands-on experience of gpg.»
- The group work»
- hmm, can"t say»
- Increased understanding of the current parts.»
- Enjoyed all labs except of the first»
- The fact we got to learn by trial and error!»
- It helps me very much to learn a lot of new things practically.»
- The lab assistants had adequate skills/competence»

14. What can be improved about the lab part of the course?

- more help on where to find answers to the questions»
- No»
- The labs should require thinking, and not just following instructions and writing down the results. The labs could be changed so that the submissions could be corrected automatically. Also, it should be allowed to do the labs alone.»
- gain learning about practical part»
- Lab need to be correct quickly so you dont have to wait, week and week and week to get the results... 1st lab can be extended and updated to present situation.»
- - see above, more challenging, - may be some parts voluntary giving bonus points for exam ... »
- Faster rejectes, but I understand if resources a limited.»
- be a bit more difficult»
- add one more lab and make labs more healthy.»
- faster corrections»
- More secure code writing, Introducing security plan creation or analsis.»
- Simpler lab booking, online? Shouldn"t have to book every week, normal approach is to book same time each week.»
- less people in the lab :)»
- more lab times»
- can"t think of anything»
- I think all the the work done is reasonable.»
- Bookings on paper?!? What year is this ,)»

15. How was the balance between lectures and lab part of the course?

- dont know»
- Good»
- It is ok»
- Good.»
- Good.»
- rather good»
- it was good balance.»
- Should be more labs.»
- One more lab between gpg and nessus lab would have been good, maybe on evaluating and securing code?»
- the lab was pretty balanced, but the lectures were quite a lot.»
- well»
- There were too many lectures, while learning is more convenient via lab work. »
- It was OK»
- Excellent balance between lactures and lab part of the course.»
- The balance is good. Keep as is.»

16. To what extent has the course literature and other material been of help for your learning?

33 svarande

Small extent»4 12%
Some extent»9 27%
Large extent»16 48%
Great extent»4 12%

Genomsnitt: 2.6

- from the offprints i liked very much: kerberos pgp (both) firewall good: unix security soso: the rest Computer security: couldn"t read more than till chapter 3 100 pages with saying things not worth more than 3 pages just killed me ... ,)» (?)
- The recommended book was very bad. 1% information 99% filler.» (Small extent)
- The course book was not very good. Far too much text saying absolutely nothing. The material on the web page was good.» (Some extent)
- The course book was quite good. The links on the course website (including the lecture slides) were mostly useless to me.» (Large extent)
- Mostly read the slides and offprints...» (Large extent)

17. In the course, we suggested "Stallings & Brown, Computer Security" as an alternative book. Please give us feedback on its quality

34 svarande

I did not read it»32 94%
I prefered it over to the recommended course book (Pfleeger)»1 2%
I did not like it. Pfleeger"s book is better»1 2%

Genomsnitt: 1.08

- The amount of reading material was huge, it will be better to lessen the quantity in order to increase the quality.» (I did not read it)

18. To what extent has the course syllabus been of help during this course?

30 svarande

Small extent»5 16%
Some extent»13 43%
Large extent»11 36%
Great extent»1 3%

Genomsnitt: 2.26

- Good, clear structure of the course.» (Large extent)

19. Do you think the course syllabus require any changes?

- No»
- Nopes, It is ok»
- no»
- No»
- so far it is quite enough for me :)»
- Syllabus could be more precise as there is a lot to read and little time to prepare for exams. »
- No»
- Reading references were a bit unclear (maybe a bit due to double references). Course book reading list very inclusive, maybe cut some contents?»
- No»
- Sorry but didn"t go through it»
- no»
- No.»

20. How well did the course administration, web page, handouts etc work?

33 svarande

Very badly»1 3%
Rather badly»3 9%
Rather well»20 60%
Very well»9 27%

Genomsnitt: 3.12

- See lab comments...» (Very badly)
- should not be sign up for labs on a paper, should be online» (Rather badly)
- website: confusing, not clearly arranged. easy to confuse with last year"s website» (Rather badly)
- Easy to access slides and files. Could the links be a bit less randomly sized though?» (Rather well)


Study climate

21. How were the opportunities for asking questions and getting help?

32 svarande

Very poor»0 0%
Rather poor»2 6%
Rather good»13 40%
Very good»11 34%
I did not seek help»6 18%

Genomsnitt: 3.65

- No exercise sessions or the like.» (Rather poor)
- during labs at least» (Rather good)
- The number of lab sessions were definitely inadequate, and the students had difficulty accessing the lab room in other times. I think all student should get access to the lab room during the whole course period to be able to work on labs whenever it matches their own schedule, not only a few limited sessions decided on teachers schedule.» (Rather good)
- laborants were polite and fair» (Very good)
- But I think it was rader poor.. Only opportunity was during the lectures? Or maybe the labs.» (I did not seek help)

22. How well has cooperation between you and your fellow students worked?

32 svarande

Very poorly»0 0%
Rather poorly»5 15%
Rather well»10 31%
Very well»16 50%
I did not seek cooperation»1 3%

Genomsnitt: 3.4

- I spent most of the laboration time explaining what passwords were and so on.» (Rather poorly)

23. How was the course workload?

33 svarande

Too low»1 3%
Low»3 9%
Adequate»18 54%
High»9 27%
Too high»2 6%

Genomsnitt: 3.24

- The work load is very high if the syllabus is followed. But if students use filtering and targeting specific most important parts, then the work load is less. » (High)

24. How was the total workload this study period?

33 svarande

Too low»0 0%
Low»1 3%
Adequate»13 39%
High»11 33%
Too high»8 24%

Genomsnitt: 3.78

- Studying at 150% most periods, including this one.» (High)


Summarizing questions

25. What is your general impression of the course?

33 svarande

Poor»1 3%
Fair»2 6%
Adequate»4 12%
Good»23 69%
Excellent»3 9%

Genomsnitt: 3.75

- Much too simple. Either the students have some basic understanding of security, or they can read the book. This course assumed that neither was possible.» (Poor)
- not really my course, but other than that, alright.» (Fair)
- Its a very good course for learning security aspects regarding computers and secure communication» (Good)
- A good well structured introductory course to computer security.» (Good)
- I would recommend it...» (Good)
- This course will be better for me to do master thesis related to the computer security» (Excellent)
- very interesting and useful» (Excellent)

26. What should definitely be preserved to next year?

- Labs are very good»
- The first lab was good in many ways. The course book was also very good.»
- Encryption/Decryption»
- Lectures. 2nd, 3rd lab.»
- Labs.»
- authentication and GPG labs»
- ever thing»
- Mix of labs and lectures.»
- The lecture, The lab»
- Labs»
-
- Lab assignments.»
- All the lacture notes and relevent data regarding to the course. »

27. What should definitely be changed to next year?

- The book "Security in computing" is not really good. Too many repetition»
- Either make the course more difficult, or create a continuation course (in addition to network security and language based security) with the same topics, but at a deeper level. It would also be interesting with much more research material in the course.»
- Nothing»
- 1st lab. Overhead slides...»
- the 3rd lab»
- I think there should be group excercises. This is the first course in the Networks and Distributed programs and group excercies would not only contribute to learning but to know other students.»
- nothing»
- Lab booking system.»
- workload should be reduced »
-
- The number, content and the method of lectures. »
- Every thing is reasonable.So I do not think that there should be any changes in the course next year.»

28. Additional comments

- It"s impossible to find the 3rd edition. Can you stop your references to this edition and update them to the fourth ?»
- Course helps me a lot about security in computers.»
- Who came up with the great idea that we put the exams of TWO mandatory courses (New MPNET students) in the beginning of the exam period, on MON & TUE?! To little time to study to both of them, choice has to be made.»
- nice class:) thank you very much»
- Thanks alot to all the team of CS.They were very cooperative to us.»
- Happy Xmas in advance :)»
- thanks!»
- I like Arne :)»
- The course give very dood ideas about the security of the computer which are very helpfull in reducing the future problems.»


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