COSC5000_MidTerm

COSC5000_MidTerm - 1 List the eight types of transparency Describe three of them Access transparency Location transparency Concurrency transparency

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1. List the eight types of transparency. Describe three of them. Access transparency, Location transparency, Concurrency transparency, Replication transparency, Failure transparency, Mobility transparency, Performance transparency, and Scaling transparency. Access transparency enables local and remote resources to be accessed using identical operations. Location transparency enables resources to be accessed without knowledge of their location. Performance transparency allows the system to be reconfigured to improve performance as loads vary. 2. Delineate queue management anomalies. Draw Graph! 3. What is the difference between Fail-Stop and Crash failures? Fail-Stop : Process halts and remains halted. Other processes may detect this state. Crash : Process halts and remains halted. Other processes may not be able to detect this state. 4. What allows a client to penetrate the domain of a server to access an object? The server is responsible for verifying the identity of the principal behind each invocation and checking that they have sufficient access rights to perform the requested operation on the particular object invoked. . 5.
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This note was uploaded on 06/09/2011 for the course BUSINESS 5970 taught by Professor Jhon during the Spring '09 term at Webster.

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COSC5000_MidTerm - 1 List the eight types of transparency Describe three of them Access transparency Location transparency Concurrency transparency

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