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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.
Quality Control Quality control is a method in which the product's quality is compared with standards and corrective actions taken if needed. Quality control activities focus o
Symbols of a data flow diagram 1. Data Flow Signifies the connectivity between various processes 2. Process Performs some processing of input data 3. Ex
Software Engineering 1. What is the impact of "information era"? 2. Illustrate whether the linear sequential model of the software process is an accurate reflection of softw
dvdnl
Define Behavioral Modelling The state transition diagram represents the behavior of a system by depicting its states and the events that cause the system to change state.
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
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
Q. Explain Intermediate and Detailed COCOMO model? Intermediate COCOMO calculates software development effort as function of program size and a set of cost drivers that include
Define Black box testing Black box testing Black-box test design care for the system as a "black-box", so it doesn't explicitly use knowledge of the internal structure. It ta
risks and types of software risks
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