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CIS 286 Final ExamFall 2016Directions: All questions must be answered using full sentences, college level writing, and in YOUR OWN WORDS. No cutting and pasting of answers except for QUESTION 9! All answers must be submitted as a Word document. Be sure to include your name, course and section number, and the date.1. Compare and contrast symmetric and asymmetric encryption methods. Be specific and give examples of how each method works.2. Explain how secure shell (SSH) works with PKI (public key infrastructure). Is this a symmetric or asymmetric method of encryption?3. Access control to a computer system or physical location can be based on one or more categories: what you have, what you know, and/or what you are. Give an example and an explanation of that example for each category.4. What type of access control does the college use at physical entry points? What type of access control does the college use for student computers?5. Imagine you are implanting passwordcard.org for your organization. Explain:a. How passwordcard.org worksb. What safety measures are provided by passwordcard.org to ensure users will always have access to their passwordcard.org card6. Visit howsecureismypassword.net and test the following list of passwords:a. david1970b. 1d9a7v0idc. Answer the following questionsi. Which password is most secure?ii. How long does the site estimate it will take to crack the secure password?iii. How long does the sire estimate it will take to crack the insecure passwordiv. Explain what accounts for the difference in cracking times.7. Visit https://crackstation.net. Obtain the passwords for the following MD4 hashesa. 441e01ee3fe4df73dbca2d76bfa56861b. 7e12fd0398763f1d54fc945f3d38971dc. 8a9d093f14f8701df17732b2bb182c748. Explain how the above method of password cracking works. Be specific and answer the question in your own words! DO NOT CUT AND PASTE FROM THE SITE!9. Build a dictionary crack list by using the site https://www.tools4noobs.com or another similar site to calculate the MD5 hash values of the following commonly found passwords:a. letmeinb. princessc. qwertyuiopd. passw0rde. starwars10. Use zenmap to run a scan against www.csuhaprof.net. Answer the following questions:a. List the open ports followed by the services traditionally run on the open port, e.g.i. port 80: httpb. What operating system does zenmap guess the server is running?c. Which of the above ports would you attempt to exploit and why?

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