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QUESTION - Fault Tolerance
(a) Three computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a failure typically takes four hours to fix. What is the availability of the replicated service?
(b) In the gossip architecture, why does a replica manager need to keep both a ‘replica' timestamp and a ‘value' timestamp?
(c) Explain the difference between linearizability and sequential consistency, and why the latter is more practical to implement, in general.
(d) Explain why allowing backups to process read operations leads to sequentially consistent rather than linearizable executions in a passive replication system.
What are the various elements of data design? i. Data object - The data objects are identified and relationship between various data objects can be shown using ERD or data dict
Q. What is Data Restructuring explain? Data Restructuring : Prior to data restructuring begins a reverse engineering activity called analysis of source code must be conducted.
what is design assignment
Structured Analysis Model Structured analysis is the most broadly used of requirements modeling techniques relies on flow modeling and data modeling to established t
How will you view GUI maps in Winrunner? - GUI maps are viewed by using GUI Map Editor - It's located in Tools menu within WinRunner. - It displays all of the GUI Map fil
Gamma testing is testing of software that does have all the needed features, but did not go by all the in-house quality checks.
Searching the Database: Searching the database and printing the results of a search are important features associated with CDS/ISIS package. The query formulation strategy pro
Q. Illustrate Partitioning in stepwise refinement? Problems are frequently too large and complex to be understood as a whole. Therefore we tend to partition such problems into
What are the benefits of smoke testing? Integration risk is minimized. The quality of the end-product is improved. Error diagnosis and correction are simplified. Asses
Question: (a) (i) Describe briefly the role of measurement in software engineering. (ii) List three types of entities, their attributes and related measures in software eng
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