Linearizability and sequential consistency, Software Engineering

Assignment Help:

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.


Related Discussions:- Linearizability and sequential consistency

What are the virtues of incremental model, What are the virtues of incremen...

What are the virtues of incremental model? i. The incremental model can be adopted when there are less number of persons associated with the project. ii. Technical risks can

Explain the term in brief-test script and test specification, Explain the t...

Explain the term in brief- Test Script and Test Specification: Test Script: - It is generally used to refer to instructions for a particular test which will be carried out

Ms project, what is meant by gantt chart who gave the name who is the found...

what is meant by gantt chart who gave the name who is the founder

Explain test data generators - testing tools, Q. Explain Test data generato...

Q. Explain Test data generators - testing tools? Test data generators: this is a hard one and at lease for the present is one for which no general solution exists. One of the

Explain quality assurance and standards, Quality assurance and standards ...

Quality assurance and standards Standards are the key to effective quality management. They may be international, national, and organizational or project standards. Prod

Explain the software life cycle model, Q. Explain the software life cycle m...

Q. Explain the software life cycle model that incorporates risk factor. Ans. The problem with traditional software process models is that they don't deal sufficiently with th

What are the proper testing strategy, What are the proper testing strategy ...

What are the proper testing strategy It is necessary to develop a proper testing strategy to ensure all possible scenarios are covered and that all error trapping techniques ar

Explain the software design process, What is the work product of software d...

What is the work product of software design process and who does this? A design model that encompasses architectural, component level, interface and their representations is t

Software engineering questions answers, i am looking for software questions...

i am looking for software questions answers for my assignment module.

Mention the factors to be considered during system modelling, Mention some ...

Mention some of the factors to be considered during System Modeling. Simplifications Assumptions Constraints

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd