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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.
Product and process standards Problems with standards They may not be seen as relevant and up-to-date by software engineers. They often include too much bureaucratic form
Define Software design. Software design is an iterative process by requirements are translated into a "blue print" for constructing the software. The blue print dep
Distinguish between alpha and beta testing. Alpha and beta testing are the types of acceptance testing. Alpha test: The alpha testing is attesting in which the version o
Name the commonly used architectural styles. i. Data centered architecture. ii. Data flow architecture. iii. Call and return architecture.
Question: (a) Why is quality assurance especially difficult in software engineering ? (b) Inspiring yourself from the McCall's taxonomy of quality attributes, explain five
Handling customer complaints There are always some customers who complain after completing the sales. Like customer objections, don't take complaints negatively. Other than
State in detail about the Software design Software design is the core of software engineering process and first of three important technical activities that are design, coding,
four circumstances where incremental model is appropriate?
What is reverse engineering? It is a process of examining software with a view to understanding its design and specification. - In reverse engineering, source code and i
Describe in short about software testing ?
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