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QUESTION
(a) Explain why making some replica managers read-only may improve the performance of a gossip system.
(b) In the gossip architecture, why does a replica manager need to keep both a replica timestamp and a value timestamp?
(c) Explain why allowing backups to process read operations leads to sequentially consistent rather than linear executions in a passive replication system.
(d) What is the consistency issue raised by state transfer?
(e) Explain why a multi-threaded server might not qualify as a state machine.
Explain in detail about Black box testing. Black box or behavioural testing focuses on the functional needs of the software. It is applied during the last phase of testin
Explain the Evolutionary Model. Ideal for software products that have their feature sets redefined during development because of user feedback and other factors. The Evolutiona
Objectives of Data dictionaries:- 1) A standard definition of all terms in a system, that is every item of data is uniquely identified and described. 2) Easy cross-referen
Abstraction :- Abstraction allows one to concentrate on a problem at some level of generalization without regard to irrelevant low level details; use of abstraction also allows one
Q. Explain about Function count? Function count:- It measures the functionality from the user point of view that is on the basis of what the user requests and receives in ret
Draw the Context level DFD for the Safe home Software. User commands Alarm type Telephone Number tone Sensor status Display Information
What are the benefits of evolutionary prototyping? i. Fast release of the working system. ii. User is engaged while developing the system. iii. More functional system can
Explain in detail about Structural Modeling. Structural model having a detail refinement of ERD, data flow model and control flow model. Creating an ERD. Example: Saf
schema tools
explain levels of transparency
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