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QUESTION
(a) Explain why making some replica managers read-only may improve the performance of a gossip system.
(b) In the gossip architecture, why does a replica manager need to keep both a replica timestamp and a value timestamp?
(c) Explain why allowing backups to process read operations leads to sequentially consistent rather than linear executions in a passive replication system.
(d) What is the consistency issue raised by state transfer?
(e) Explain why a multi-threaded server might not qualify as a state machine.
Write about drivers and stubs. Drivers and stub software has to be developed to test incompatible software. The " driver" is a program that accepts the test data and prints
What are the benefits of evolutionary prototyping? i. Fast release of the working system. ii. User is engaged while developing the system. iii. More functional system can
Q. What is ripple effect? How does it affect the stability of a program? Ans. The ripple effect is a term used to explain a situation where like the ever expanding ripples
Define sandwich testing. Testing joins the ideas of bottom-up and top-down testing by explaining a certain target layer in the hierarchy of the module.
Explain the Per-action modeof QTP - Best used in below cases: - When creating simple record and run tests when there is just one or very few tests which correspond to int
Q. Differentiate between function oriented design and object oriented design. Ans. Function oriented design:- Function oriented design strategy relies on decayed the system i
What is meant by Information flow Continuity? When we refine a fundamental model for a system, the information flow continuity should be maintained .ie, input & output to each
EXPLAIN ABOUT DEFECT AMPLIFICATION AND REMOVAL IN SOFTWARE ENGINEERING
Internal Interrupt Cause because of illegal or erroneous use of an instruction or data. Internal interrupts are also known as traps. Internal interrupts are initiated because o
Define Verification ?
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