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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.
Which type of software must not be automated? Following types of software must not be automated: - Incomplete/Unstable software since they are still undergoing changes -
Q. Explain Span and average span size of a program? Span dimension indicates the number of statements that pass between successive uses of a variable. For illustration in the f
IMPORTANT ISSUES SRS MUST ADRESS
Explain in detail about Black box testing. Black box or behavioural testing focuses on the functional needs of the software. It is applied during the last phase of testin
What are the reasons behind to perform white box testing? There are three main reasons behind performing the white box testing. 1. Programmers may have some incorrect assum
Clear box testing is the similar as white box testing. It is a testing approach that consider the application's program structure, and acquires test cases from the application's pr
What are the roles of glass-box and black-box testing tools? Glass Box (or white box) testing is the method of giving i/p to the system and checking how the system processes i/
Q. Illustrate Functions that dynamic testing tools supports? Functions that dynamic testing tools supports: 1: input setting it is selecting of the test data that the test
A player with an active turn must make a valid move with their character or pass their turn. As a first move in the game, the player can move to the hallway that is adjacent to the
List the task regions in the Spiral model. Customer communication - In this region it is suggested to make customer communication. Planning - All planning activities are car
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