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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.
Q. Why does the software design improve when we use object-oriented concepts? Ans. The software design gets betters when we use object-oriented concepts because 1.Object-o
I am working on DD development project and I am using 475 field communicator for testing DD. While development of DD, I tested DD with SDC 625 PC application using HART modem. I h
What is System Engineering? System Engineering means designing, executing, deploying and operating systems which contain software, hardware, and people.
question..
consider the following flow chart, a. Draw the flow graph and show the edges, regions and nods clearly b. show the independent paths c. calculate the cyclomatic complexity in three
The term "performance testing" is usually used synonymously with stress testing, load testing, reliability testing, and volume testing. It is a part of system testing, but it's als
What is CMMI framework? The CMMI framework is the present stage of work on process assessment and improvement that started at the Software Engineering Institute in the 1980s.
INMAGIC Plus: INMAGIC Plus is a microcomputer- based software package designed to build, maintain and use textual databases including bibliographic databases. As a generalised
Define Verification &Validation. Verification: The set of activities that make sure that software correctly executes a specific function. Validation: The set of activiti
Explain Validation and verification testing? Ans) Used as an entity to describe a procedure of review, analysis, and testing all over the software life cycle to discover errors,
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