TU Wien:Advanced Internet Computing VU (Dustdar)/Prüfung 2019-03-14

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Side exam WS18[Bearbeiten | Quelltext bearbeiten]

60 minutes, closed book

  1. Describe the difference between functional and non-functional properties
  2. Meaning of loosely coupled and stateless web services?
  3. Single choice questions (no deductions for wrong answers)
    • Do BPEL-scopes define variable visibility within the process? Y/N
    • ? Y/N
    • ? Y/N
    • ? Y/N
    • ? Y/N
  4. Why do you need MEPs when using WSDL2.0?
  5. REST
    • Describe "Safe" HTTP methods, name one example
    • Describe "Idempotent" HTTP methods, name one example
    • What is OPTIONS intended for?
    • Describe at least three tasks that can be done by an ESB
  6. Why would you as a provider use virtual machines instead of actual hardware machines?
  7. Describe the difference between orchestration or choreography
  8. Calculations - given Max values ~ A=100ms,B=200ms,C=300ms,D=400ms,E=500ms, B and C may run in parallel, what is the expected value?
  9. Write down the theoretical speedup of a system processing tasks in parallel (task can be parallelized by 60%, 5 CPUs are available)
  10. Example given (volatile computation demand for video surveillance, minimize cost), which cloud products would you use and why