5.  (10 points).  In class we talked about the steps required for determining a structure using X-ray diffraction. Answer the questions below about X-ray structure determination. a.    (2 points). Why are crystals used for diffraction experiments rather than a single molecule, which in principle could diffract an X-ray? b.    (2 points). Describe Bragg’s law and why it allows for one to see reflections (i.e., a diffraction pattern). c.    (2 points). Why are Miller indices useful for describing an X-ray diffraction experiment? d.    (2 points). Describe the setup for an X-ray diffraction experiment and how one would collect data. e.    (2 points). What is the “phase problem” in X-ray crystallography and describe one method that allows one to solve the phase problem.

A(n) ________ is a relatively short fixed-length value computed using a known function and a secret key for the purpose of ensuring that a received message corresponds to what was sent.

A(n) ________ is a hardware-assisted segregated secure environment that provides secure storage of encryption keys and dedicated storage and execution of security code.

The primary objectives of information system security are sometimes referred to as the ________ triad.

Risk ________ is the process of identifying the nature, likelihood, and potential impact of adverse events.

Values in thing abstraction representations are always read-only.

Legacy industrial and manufacturing systems are often referred to as ________ systems.

Which of the following is true about locks?

A good design practice is to avoid dividing networks into segments based on physical connectivity and device similarity.

A(n) ________ neural network has one or more intermediate layers that do not have direct external inputs or produce direct external outputs.