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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.
State the term- Code Coverage This is an analysis method that determines which parts of software have already been covered by test case suite and which are remaining.
Mention some of the Notations for requirements specification. Structured natural language: Use standard Templates or form. Design description language: Programming langua
Bottom up design: This design leads to a style of design where we decide how to join these modules to give larger ones; to combine those to give even larger ones, and so on, till
Question 1 V-Model and Spiral Model, Waterfall Model are of the software development processes. Companies are using these models to have a systematic and defined approach in softw
Question: (a) Compare the following pairs of terms as used in object oriented software engineering: (i) Association and Association class (ii) Multiplicity and multiple
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
Problem 1. Explain why the use of a standard high-level language does not guarantee that software will be portable across a range of machines 2. Draw possible data flow diag
what is COCOMO model and where it is used also say about COCOMO model when in use then how it act and its characteristtics details
A software tool that accepts as input source code, specifications, test criteria, or data structure definitions; uses these inputs to make test input data; and, sometimes, verifies
SOFTWARE METRICS Measurement is fundamental to an engineering discipline and software engineering is no exception. Software metric is a quantitative measure which is derived fr
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