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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 is time line chart for travel management?
Explain Structure-based testing techniques - Structure-based testing methods are also termed as white-box testing techniques. - These are dynamic methods. - They use the
Q. Explain about Data coupling? The dependency among module A and B is said to be data coupled if their dependency is based on the fact they communicate by merely passing of da
Illustrate the Introduction to Flowcharts This mainly covers four areas: 1 Common flow chart symbols 2 Writing flowcharts to solve problems 3 Dry running of flowcharts
Name the design phase of SDLC Generally, design is performed in the below two steps: i) Primary Design Phase: In this phase, system is designed at block level. Blocks are
Mutation testing is type of software testing where our goal is to make mutant software fail, and therefore demonstrate the adequacy of our test case.
What is V- Diagram (model)? Ans) A diagram that imagine the order of testing activities and their corresponding phases of growth
What is Verification represent? Verification represents the set of actions that are performed to confirm that the software correctly implements the particular functionality.
What are the objectives of software design? Objectives of software design The objective of the design phase is to plan a solution of the difficulty
What is recovery testing and Security testing Recovery testing is system tests that bind the software to fail in a variety of ways and justify that recovery is correctly perf
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