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

When do you choose automated testing over manual testing, When do you choos...

When do you choose automated testing over manual testing? Automation is chosen when -A similar set of tests need to be repeated again and again -When a single test requi

What is software fault, Software faults are unseen programming errors. Soft...

Software faults are unseen programming errors. Software faults are errors in the correctness of the semantics of computer programs.

What are the common activities in design process, What are the common activ...

What are the common activities in design process? i. System structuring - The system is subdivided into principle subsystems components and communications among these subsystem

Describe the object interface design, Question 1 Explain Iterative Develop...

Question 1 Explain Iterative Development Model in detail Question 2 Describe the Object Interface Design Question 3 Explain why it is important to describe softwar

Write short notes on configuration management, Q. Write short notes on Conf...

Q. Write short notes on Configuration Management? Software configuration management is a bunch of tracking and control activities that begin when a software project begins an

What is software requirement specification, What is Software requirement Sp...

What is Software requirement Specification (SRS)? Software Requirement Specification Document is the output of requirement examines stage of the software development life cycle

What are the reasons behind to perform white box testing, What are the reas...

What are the reasons behind to perform white box testing? There are three major reasons behind performing the white box testing. 1. Programmers may have some incorrect assum

Software development system, Question: (a) Shneiderman's eight golden ...

Question: (a) Shneiderman's eight golden rules for dialogue design are (1) strive for consistency, (2) enable frequent users to use shortcuts, (3) give informative feedback,

What is waterfall model, Waterfall is a model of the software development p...

Waterfall is a model of the software development process in which the idea phase, requirements phase, design phase, execution phase, test phase, installation phase, and checkout ph

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