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The acceleration of gravity on the Moon’s surface is about 1/6 of that on the Earth’s surface. An object on the Earth is to be taken to the Moon. We can state that, compared to the Earth

Which of the fllowing would be have the lowest boiling point, according to the strength of the major IMF (intermolecular force) that exists in the sample? 

Which of the following regarding IMR (infant mortality rate) and MMR (maternal mortality rate) is TRUE?

A 35-year-old patient presents to the urgent care clinic with complaints of redness, irritation, and discharge in the right eye for the past two days. On examination, conjunctival injection and purulent discharge are noted. Visual acuity is intact, and there are no corneal infiltrates or ulcers observed. The patient denies any recent trauma but does wear contact lens. In the management of bacterial conjunctivitis as described, which of the following is the most appropriate first-line treatment option?

Which of the following antimicrobial medications is generally considered a safe option to prescribe first-line during pregnancy (in any trimester)?

Which of the following oral options is suitable for treating methicillin-resistant Staphlycococcus aureus (MRSA)?

J.M is a 24 year old male who presents to your clinic with complaints of wheezing and shortness of breath. He was diagnosed at age 16 with mild intermittent exercise-induced asthma for which he has carried an albuterol inhaler. He reports new frequent nighttime awakenings with coughing fits,  several times per week. He used to be able to work around his yard without incident, however now he finds himself having to take occasional breaks to use his albuterol inhaler. After ruling out other concerns, you determine that his asthma has likely progressed. Which of the following is the next appropriate measure to prescribe to patient J.M?

Which statement best reflects the Time above the Minimum Inhibitory Concentration (MIC) concept for a patient receiving a continuous IV infusion of nafcillin?

Which of the following statements correctly describe potential antimicrobial drug interactions?

Problem 1 (2 points) Create a three-tier Fattree topology connecting the 16 hosts \(A\)–\(P\) below.  Problem 2 (2 points) A random topology such as Jellyfish may provide higher network throughput than a structured topology such as Fattree connecting the same number of hosts using identical switches. Why or why not? Problem 3 (4 points) Consider the network topology show below. Assume CONGA load balancing. Recall CONGA uses a global load (congestion) estimation for path selection. The initial congestion table at time \(t=0\) for ToR \(L0\) is shown below. Assume every time a packet is sent out on a given port \(i\) destined to ToR \(L\), the congestion value of the entry in the table is increased by 1. Further recall CONGA does load balancing at the granularity of flowlets. Recall the parameter \(\delta\), which estimates the maximum delay difference between two network paths, used to identify new flowlets.  Suppose we have packets from flow \(F (H1\rightarrow H6)\) arriving at the ToR \(L0\) and going upstream. Table below shows the arrival time of each packet. Fill the table with the upstream output port on which each packet will be sent out by CONGA for two different \(\delta\) values. Problem 4 (4 points) Assume DCTCP congestion control. Recall the cwnd update in DCTCP, where DCTCP does additive increase on lack of congestion and multiplicative decrease based on the extent of congestion as dictated by the parameter \(\alpha\). You can assume \(g=1\) while calculating \(\alpha\).  For simplicity, assume DCTCP sends packets in rounds. In each round, DCTCP sends cwnd number of packets, waits for all the ACKs to arrive, and updates the values of \(\alpha\) and cwnd. Then the next round follows with the updated cwnd value from the previous round.  Based on this, fill the table below with the cwnd value at the start of each round and \(\alpha\) value at the end of each round.  Problem 5 (2 points) Describe the key limitation of sender-driven congestion control protocols such as DCTCP that is solved by receiver-driven protocols such as NDP. Also explain why a receiver-driven protocol is better suited to overcome this limitation. Problem 6 (2 points)  Consider a Software-defined Network (SDN) such as Ethane. Suppose a host \(H1\) sends a packet to host \(H2\). You may assume that this is the very first packet sent from \(H1\) to \(H2\). The packet was received at \(H2\) after a delay of \(t_1\) time units. After a while, \(H1\) sends another packet to \(H2\) over the same network, and this time the packet was received at \(H2\) after a delay of \(t_2\) time units. It was observed that the delay \(t_1\) was significantly higher than \(t_2\). Assuming that both packets took the same path, the network does not process any other packet (i.e., the network is completely unloaded with no queuing or congestion) and no failures or changes to network topology happen, provide a reason for this difference in delay. Problem 7 (2 points) In a wide-area network (WAN), what are the two key benefits of using a centralized SDN controller for traffic management over the traditional distributed controller? Problem 8 (2 points) Consider a Push-In-Extract-Out (PIEO) scheduler. Suppose there are 8 packets \(A\)–\(H\) queued with rank and \(t_{eligibility}\) values as shown below. Given this, fill the table below with the packet that will be scheduled at each time \(t\) by the PIEO scheduler. If no packet is scheduled at time \(t\), enter “None”. Note that once a packet is scheduled, it is removed from the queue and cannot be scheduled again. Congratulations, you are almost done with this Midterm Exam.  DO NOT end the Honorlock session until you have submitted your work.  When you have answered all questions:  Use your smartphone to scan your answer sheet and save the scan as a PDF. Make sure your scan is clear and legible.  Submit your PDF as follows: Email your PDF to yourself or save it to the cloud (Google Drive, etc.).  Click this link to submit your work: Midterm Exam Return to this window and click the button below to agree to the honor statement. Click Submit Quiz to end the exam.  End the Honorlock session.