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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.
I want to know that what are the activities, roles,artifacts and goals do a planning phase of SQE encempass? How can we prepare sqa plan for any project?
What is software maintenance? Software maintenance is a set actions in which program are customized after it has been put into use. COCOMO model :- COnstructive COst MOd
write a main module and three other nodules. The owners of the Super Supermarket would like to have a program that computes the monthly gross pay of their employees as well as the
Determine statement coverage and path coverage
When you write to a file, you do what?
What are Quality reviews? This is the principal method of validating the quality of a process or of a product. A group examines part or all of a process or system and its do
Explain in detail about Integration testing. It is a systematic method for constructing the program structure. Incremental integration - The program is constructed and
Problem: (a) Draw an Entity Relationship Diagram for the given case study. Show entities and relationships on the diagram (attributes should not be shown). Cardinality and op
Q. Define graph matrix and connection matrix. Ans: Graph matrix: A graph matrix is a square matrix whose size that is a number of rows and columns is equal to the number of n
Software Engineering A high technology system encompasses a number of elements like people, hardware, software, database, documentation, and process. System engineering
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