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

Why software design improve when we use oops concepts, Q. Why does the soft...

Q. Why does the software design improve when we use object-oriented concepts? Ans. The software design gets betters when we use object-oriented concepts because 1.Object-o

Encryption-decryption algorithms and aes, Introduction The goal of the ...

Introduction The goal of the assignment is to build functionality on top of twitter that allows you to encrypt tweets to subgroups of your twitter Background Material R

What is the use of a data flow diagram, Q. What is the use of a data flow d...

Q. What is the use of a data flow diagram? Explain the important concepts of data flow diagram. Ans. A data flow diagram is utilized to show the functional view of an applica

Advantages of re-engineering, Advantages of Re-Engineering:- 1)  Reduce...

Advantages of Re-Engineering:- 1)  Reduced risk - there is a huge risk in new software development. There might be development problems, staffing problems and specification pro

What is problem, What is Problem Any deviation from defined standards. S...

What is Problem Any deviation from defined standards. Similar as defect.

Mca, encoded micro instruction vs unecoded micro instruction

encoded micro instruction vs unecoded micro instruction

Relationship between people and effort, Ask question #Minimumreal time exam...

Ask question #Minimumreal time example 100 words accepted#

State the system engineering hierarchy, State the System Engineering Hierar...

State the System Engineering Hierarchy The world view is made up  of a set of domains (Di),which can either be a system or a system of systems. WV = {D1,D2,D3,...........,Dn

Explain about data coupling, Q. Explain about Data coupling? The depend...

Q. Explain about Data coupling? The dependency among module A and B is said to be data coupled if their dependency is based on the fact they communicate by merely passing of da

How do software myths affect a software process, Q 1 Define a software proc...

Q 1 Define a software process. How do software myths affect a software process? Ans: A Software process is a Coherent set of activities for designing, specifying, implementin

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