Short Answer QuestionsPlease respond to each question with a brief description or explanation. Depending on question, a word or list may be sufficient for the response.

Welcome to the third exam.This is our first cumulative exam. We are over the halfway mark for the term, and this is the only content scheduled for this week.This exam covers the lecture content from Units 01 to 06.Similar to the other exams, this will be proctored through Honorlock. However, unlike the other exams, you have two hours to complete it once started. That should be much more time than needed, but the exam is about a third longer than each of the previous exams. Please note also that the exam must be completed by the listed due date.Question types32 Multiple Choice Questions (1 pt)4 Short Answer Questions (2 pts)2 Essay Style Questions (4 pts)When you are finished with this exam, please enjoy the Fourth of July holiday. There will be nothing else posted for Week 5. Please consider reading Chapter 10 of the textbook, which is the last “sensation and perception” chapter. It is somewhat dense, and we will be getting into it on Week 6.I continue to wish you the best. If you have any questions, please feel free to contact me.Please continue to the next page.

Multiple Choice QuestionsPlease select the option which best answers the question or completes the sentence.

Your organization recently deployed a Linux-based firewall using iptables with custom rules for packet filtering. After deployment, users report that they cannot access a public-facing web server hosted internally, even though the rule -A INPUT -p tcp –dport 80 -j ACCEPT exists. Upon reviewing the rules, you find the following: -A INPUT -m conntrack –ctstate ESTABLISHED,RELATED -j ACCEPT-A INPUT -p icmp -j ACCEPT-A INPUT -p tcp –dport 22 -j ACCEPT-A INPUT -p tcp –dport 80 -j ACCEPT-A INPUT -j DROP

Anne is using a VPN to access the internet on a public café Wi-Fi. She forgets to enable the VPN kill switch. Suddenly, her VPN disconnects due to weak signal strength. Which of the following is the most likely risk in this scenario?

Your organization is migrating its core network from traditional L2/L3 switches to SDN-enabled switches managed by a centralized controller. During the migration, some segments of the network are operating on SDN switches while others are still using legacy infrastructure. Shortly after deployment, your team notices: Certain flows are not being forwarded as expected. Packet delivery across hybrid segments is inconsistent. Flow entries appear missing or outdated on several SDN switches. As the lead network engineer, you’re asked to diagnose the issue.Which of the following is the most likely cause, and why?

Match the following structure or motility with its appropriate description.  

The figure below shows a typical bacterial growth curve with the y-axis indicating the log of the number of bacteria and the x-axis indicating time in culture.  Refer to the graph and choose the growth phase that best matches the following description.         Cells are metabolically active and adapting to the new environmental conditions,   but not yet dividing.

Your lab partner has mixed a dead tryptophan + strain of Bacillus subtilis with a live tryptophan– strain and observes that her  Bacillus subtilis culture is now tryptophan +. The most likely explanation for this is __________. Please note that tryptophan + strain can synthesize tryptophan on its own, and therefore does not require it to be supplemented in the growth medium.  This contrasts with a tryptophan–  strain, which cannot synthesize tryptophan due to a mutation and thus needs tryptophan added to its medium to grow.

In which organelles is fMet-tRNA involved in protein synthesis in eukaryotic cells?