Systems, Networking, and Cybersecurity Ph.D. Qualifier Exam

Spring 2020

Examining Faculty

    Dr. Godmar Back
    Dr. Matthew Hicks (Chair)
    Dr. Bimal Viswanath

Registered Students

Send email to mdhicks2@vt.edu to be registered. Your participation in the survey did not register you, I need to hear from you!

Early Withdrawal Policy

Once students have notified the Computer Science Department of their intention to take the Systems and Networking Ph.D. Qualifier Exam, they may withdraw from taking the exam at any point prior to the public release of the exam questions. Once the exam questions are released, the exam is considered "in progress" and withdrawal is prohibited. Students with questions about this policy should contact the exam chair directly.

Academic Integrity

Discussions among students of the papers identified for the System's Qualifier are reasonable up until the date the exam is released publicly. Once the exam questions are released, we expect all such discussions will cease as students are required to conduct their own work entirely to answer the qualifier questions. This examination is conducted under the University's Graduate Honor System Code . Students are encouraged to draw from other papers than those listed in the exam to the extent that this strengthens their arguments. However, the answers submitted must represent the sole and complete work of the student submitting the answers. Material substantially derived from other works, whether published in print or found on the web, must be explicitly and fully cited. Note that your grade will be more strongly influenced by arguments you make rather than arguments you quote or cite.

Exam Schedule

    11/06/2019: this web page created.
    12/02/2019: release of reading list
    01/06/2020: release of written exam
    01/20/2020 (11:59PM): student solutions to written exam due
    end of Jan/beg of Feb: oral exams.

Reading List

  1. Atom: Horizontally Scaling Strong Anonymity, Albert Kwon, Henry Corrigan-Gibbs, Srinivas Devadas, and Bryan Ford. SOSP, October 2017.
  2. Algorand: Scaling Byzantine Agreements for Cryptocurrencies, Yossi Gilad, Rotem Hemo, Silvio Micali, Georgios Vlachos, and Nickolai Zeldovich. SOSP, October 2017.
  3. Fast and secure global payments with Stellar, Marta Lokhava, Giuliano Losa, David Mazières, Graydon Hoare, Nicolas Barry, Eli Gafni, Jonathan Jove, Rafał Malinowsky, and Jed McCaleb. SOSP, October 2019.
  4. Privacy Risks with Facebook's PII-based Targeting: Auditing a Data Broker's Advertising Interface, Giridhari Venkatadri, Yabing Liu, Athanasios Andreou, Oana Goga, Patrick Loiseau, Alan Mislove, and Krishna P. Gummadi. Oakland, May 2018.
  5. AdVersarial: Perceptual Ad Blocking meets Adversarial Machine Learning., Florian Tramèr, Pascal Dupré, Gili Rusak, Giancarlo Pellegrino, and Dan Boneh. CCS, November 2019.
  6. Privacy Risks of Securing Machine Learning Models against Adversarial Examples, Liwei Song, Reza Shokri, and Prateek Mittal. CCS, November 2019.
  7. DIVA: a reliable substrate for deep submicron microarchitecture design, Todd M. Austin. Micro, November 1999.
  8. Complete Information Flow Tracking from the Gates Up, Mohit Tiwari, Hassan Wassel, Bita Mazloom, Shashidhar Mysore, Frederic Chong, and Timothy Sherwood. ASPLOS, March 2009.
  9. Crafting a Usable Microkernel, Processor, and I/O System with Strict and Provable Information Flow Security, Mohit Tiwari, Jason Oberg, Xun Li, Jonathan K Valamehr, Timothy Levin, Ben Hardekopf, Ryan Kastner, Frederic T Chong, and Timothy Sherwood. ISCA, June 2011.

Written Questions

Each year, the Systems, Networking, and Cybersecurity faculty publishes a reading list of papers by the end of the fall semester and a list of integrative research questions to answer within a 10--14 day period. The deadline for students to provide written answers to the research questions is usually within first few weeks of the spring semester. The goal of the written exam is to evaluate the student’s ability to creatively integrate content from the constituent systems research areas.

2020 Exam Questions (released on: January 6, 2020)

Oral Exam

The written exam will be followed by an oral exam, where the student is expected to defend his/her solutions. Unless specifically requested, the student is not expected to make a formal presentation. In the oral exams, faculty may ask questions about any paper in the reading list to assess the student’s understanding of the subject. Oral exams will be scheduled individually for each student.

Assessment

After the oral examination, the examining faculty will determine the student's score for the examination process. The score is between 0 – 3 points, depending on the student's performance on both the written and oral components. These points may be applied toward the total score of 6 points necessary to qualify for the Ph.D. The assessment criteria, as defined by GPC, are as follows:

Past Exams 

    Spring 2019 exam
    Spring 2017 exam
    Spring 2016 exam
    Spring 2015 exam
    Spring 2014 exam
    Spring 2013 exam
    Spring 2012 exam
    Spring 2011 exam
    Spring 2010 exam
    Spring 2009 exam
    Spring 2008 exam
    Spring 2007 exam
    Spring 2006 exam