Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
What are the types of Software system requirements ? Functional requirements: Services the system should be required. Non-functional requirements: Constraints on the servi
Determine the technique - Parallel With this approach, old and new systems are run together for a time - If new system goes down for any reason, you still have old system
MICROCOMPUTER SOFTWARE PACKAGES: There are a number of possibilities for using microcomputers in libraries and centres. What the microcomputer can accomplish is limited by tw
CMM = 'Capability Maturity Model', now known as the CMMI ('Capability Maturity Model Integration'), developed by the SEI. It's a model of five levels of process 'maturity' that ver
Q. Differentiate between iterative Enhancement Model and Evolutionary Development model. Ans. Iterative Enhancement Model: This model has the similar phases as the waterfall
Determine the Shared mode of QTP - Best used in subsequent cases: - When there are numerous tests which correspond to interface, objects, or application - When test obj
Bottom-up integration This testing starts construction and testing with the components at the lowest levels in the program structure.
What are the advantages of using testing tools? The advantages of testing tools are: They get better the productivity and quality of software development. Help in i
What is stepwise refinement? Stepwise Refinement:- Stepwise Refinement is a top-down design method originally proposed by Niklaus Wirth. A program is developed by successively
Q. Write short notes on Decision Table? Decision Table: While the process logic for a process involves multiple conditions as well as is very complicated it isn't advisable t
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd