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

Explain product and process standards, Product and process standards Pr...

Product and process standards Problems with standards They may not be seen as relevant and up-to-date by software engineers. They often include too much bureaucratic form

Define software design, Define Software design. Software design is a...

Define Software design. Software design is an iterative process by requirements are translated into a "blue print" for constructing the software. The blue print dep

Distinguish between alpha and beta testing, Distinguish between alpha and b...

Distinguish between alpha and beta testing.  Alpha and beta testing are the types of acceptance testing.  Alpha test: The alpha testing is attesting in which the version o

Name the commonly used architectural styles, Name the commonly used archite...

Name the commonly used architectural styles. i. Data centered architecture. ii. Data flow architecture. iii. Call and return architecture.

Why is quality assurance difficult in software engineering, Question: (...

Question: (a) Why is quality assurance especially difficult in software engineering ? (b) Inspiring yourself from the McCall's taxonomy of quality attributes, explain five

Handling customer complaints, Handling customer complaints There are al...

Handling customer complaints There are always some customers who complain after completing the sales. Like customer objections, don't take complaints negatively. Other than

State in detail about the software design, State in detail about the Softwa...

State in detail about the Software design Software design is the core of software engineering process and first of three important technical activities that are design, coding,

Incremental model, four circumstances where incremental model is appropriat...

four circumstances where incremental model is appropriate?

What is reverse engineering, What is reverse engineering?    It is a pr...

What is reverse engineering?    It is a process of examining software with a view to understanding its design and specification. -  In reverse engineering, source code and i

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