TU Wien:Advanced Internet Computing VU (Dustdar)/Prüfung 2017-01-12

• Webservice Stack

• Functional & Non-Functional properties

• ~5 Multiple Choice Questions:
  • Response-time is a server-side web service QoS characteristic
  • ???

• What is BPEL, describe language characteristics, what 2 types of activities does it offer.

• Process vs. workflow based model

• Describe 3 elasticities discussed in the lecture

• Describe these 3 intrinsic cloud characteristics
  • Resource Pooling, Service metering, Elasticity?

• Discuss pros/cons for small VM vs big VM for fully parallelizable application. Ignore metering time units. Assume linear scaling (2 CPU machine twice as expensive as 1 CPU machine)