Once you have completed the course material, you should be ready to...

Once you have completed the course material, you should be ready to take on the labs with the goal of compromising each machine and obtaining a high privilege interactive shell. The course exercises include information about various lab machines, and if you've been diligent with your note taking, you'll have enough to go after some of the "low-hanging fruit" in the labs. The next step is to apply the process learned from the course starting with performing thorough information gathering on the rest of the network and use information from compromised machines to target additional ones. If you are struggling with how to approach a particular machine, consider going to the student forums as a first step. If the forums have not provided you with any helpful information, you should contact Live Support to see if any additional guidance is available. 1.3 Obtaining Support PWK is not a fixed-pace course. This means you can proceed at your own pace, spending additional time on topics that are difficult for you. Take advantage of the pacing of this course and don't be afraid to spend a bit longer wrestling with a tough new topic or method. There is no greater feeling than figuring something out on your own! Having said that, there are times when it's perfectly appropriate to contact support. Before you do, please understand that we will expect that you have gone over all of the course materials before jumping into the labs and will not hesitate to refer you back to the course material when needed. Not only that, but we hope you've also taken it upon yourself to dig deeper into the subject area by performing additional research. The following FAQ pages may help answer some of your questions prior to contacting support (both are accessible without the VPN): • https://support.offensive-security.com/ • https://www.offensive-security.com/faq/ If your questions have not been covered there, we recommend that you check the student forum, which also can be accessed outside of the internal VPN lab network. If you are still unable to find the help you need, you can get in touch with our Student Administrators by visiting Live Support5 on the support page or sending an email 

Image transcription text

Consider that you have a set of N Christmas lights, which can turn red or green. The lights are numbered from 1 to N. Initially at time step 1 they are all red. The mechanism is set such that at time t, all lights whose id is divisible by t will change color (i.e. red to green, or green to red). For example, given 6 lights, numbered 1,2,3,4,5,6 at time step 1- RRRRRR at time step 2- RGRGRG at time step 3 - RGGGRR How many lights will be red at the end of N time steps ? Give a pseudocode of your algorithm and its complexity. If the algorithm complexity is O(n2) then you get 5 points If the algorithm complexity is O(n) then you get 10 points If the algorithm complexity is less than O(n) then you get 15 points

... Show more