TU Wien:Verteilte Systeme VO (Göschka)/Prüfung 2012-10-08

Vertikale Verteilung

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What is "vertical distribution" and what is an N-tier system? Discuss the variations of client/server systems. Is a Java applet hence a thick or a thin client?

Virtualisierung

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Describe the concept of virtualization and the meaning for code migration in distributed systems. What different kinds of virtual machines do you know?

Fehler in RPC

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Explain the failure classes in client/server systems. What is the "lost reply" problem?

Parameterübergabe bei RMI?

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How can parameters be passed in RMI? What properties of object orientation make the difference here and what is the advantage over RPC?

Publish/Subscribe

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Explain the principle of publish/subscribe as communication and coordination mechanism. What are the benefits and drawbacks of this mechanism (and its implementation)? Explain JINI and JavaSpaces as an example.

Quelle: [1]