Here is the solution for the final exam. My comments on common mistakes are embedded inside.

And now, a personal message: I would like to thank all of you for being patient with me throughout the semester. This semester’s CS2105 has been the most difficult semester for me to teach: (i) the class size increases to a record high of 191, (ii) the number of TAs reduces to 1, and (iii) I just become a father to a pair of twins in Dec 2013 and am in the constant state of sleep deprivation for the whole semester. I have been late in posting class materials, returning assignments, and returning emails (or not returning emails). I have made mistakes in some of the lectures and spoken incoherently occasionally, and yet you all have been the nicest bunch of students and have tolerated these. Some of you even have kind words for me despite all of these, and that kept me going. So, thank you.

I hope you have enjoyed CS2105 and have learnt something useful. Have a good break!

FIN

My two office hours before the final exams are:

• Friday, 25 April, 4-6pm.
• Monday, 28 April, 4-6pm.

Here are two past year CS2105 exam paper set by me:

• Semester 2, AY 10/11
• Semester 2, AY 12/13

Enjoy.

Oh, here are some MCQs that have been rejected as exam questions this year.

1. Which of the following is a VALID networking protocol?
A. ECP
B. ERP
C. PGP
D. PAP
E. FYP

2. Which of the following is NOT a table used in networking protocols?
A. Switching Table
B. NAT Table
C. Forwarding Table
D. Routing Table
E. Premier League Table

:)

The following email snippet from National Youth Council is referred:

—
We have been approached by an organisation to nominate youths from university/tertiary students, to participate in the inaugural NextGen@ICANN program that will engage them on the areas of internet policy and governance, and get them familiarized with the ICANN (Internet Corporation for Assigned Names and Numbers) processes. ICANN is an international organization responsible for coordinating the unique identifiers – top level domains (TLD), such as ‘.com’, ‘.org’ and ‘.net’, etc, between computers across the world and building the global Internet. The youths should preferably be those who are interested in the area of ICT, internet governance or whose study is related to this area. More details on the program can be found in the attached.

Would you be interested to nominate some of your students to participate? There are 15 slots for students, Uni Year 1 and above (or equivalent, aged 18-29).
—

If anyone is interested, please email me.

You can get the code (cleaned up and polished) from Lecture 3 on github:
https://github.com/weitsang/nus-cs2105-socket-programming

You can download the whole thing as a zip file (click on “Download Zip” on the lower right corner).

If you are familiar with git, feel free to clone and submit pull request if you found any bug.

Please note that there is a change in time for Saeid’s office hours starting next week.

The venue is now Discussion Room 7 (COM2-03-14) and the time is now every Thursday and Friday, 3-4pm.

Update (7pm, 2014-01-22):

We managed to swap two groups to a larger room. We can now accommodate more students. We also increased the quota for all tutorial slots, except Tutorial 8 (due to room size).

If you emailed me earlier, you should have heard back from me. For those who still have not secured a tutorial slot, please email me, Tang Ruiming, and Zeng Yong with your preferred slots (give multiple slots) and your matric number, and we will try to slot you in as much as the room size allows.

Original Post:

I received many emails from you about not being able to bid for tutorial slot.

I checked and we have 40+ students more than last AY. This increase in number could be why there is not enough slots available.

I am sorting things out with the UG Office and timetable planner. Please hang on for further announcement (and check for new slots or increase quota in CORS).

If you have other issues with CS2105 tutorial slots, please email Tang Ruiming (tangruiming@comp.nus.edu.sg) and Zeng Yong (zengyong@comp.nus.edu.sg). They are in charge of tutorial registrations for CS2105 (and have access to the online system).

This blog serves as the main Web site for CS2105, containing tutorials, lecture slides, labs, screencasts, and general announcement about CS2105. From time-to-time, we might post interesting tidbits, bookmarks, and news related to CS2105. You are also free to make comments, ask questions, answer questions, raise issues, etc. through the blog. The blog serves as a replacement for IVLE’s workbin, announcement, and forum.

As the blog will be frequently updated (sometimes with important announcements), you should check the blog frequently for the latest updates. Two easier options to keep yourself up to date are (i) subscribe to the blog update via email (at the top of the sidebar), in which case you will receive an email everytime the blog is updated, (ii) subscribe to the blog RSS feeds, in which case you can use any RSS reader (e.g., Google Reader, Thunderbird) to read the blog’s feed along with other websites you are interested in.

For printing a particular page or post, I find the Evernote Clearly bookmarklet useful.

The first class of CS2105 will be on Monday, 13 January 2014, in LT15. See you there!