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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.
Explain any two graphical design notations used in procedural design
Question: (a) Name two agent-oriented programming languages. (b) Distinguish between communication protocols and interaction protocols for agent systems. Give two example
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
You are to create a decision table to help you decide what to do for the day. If it is a weekday and it is not a holiday, then you go to work. However, if it is a weekday and it
Consider an 8-bit system with 32 memory locations (numbered from 0 to 31) and 8 different instructions. Assume op code for "Load Accumulator" instruction is 5 10 and for "Add" ins
database mapping from class to database
Describe the various steps of the reuse-oriented model. The reuse-oriented model, also known as reuse-oriented development (ROD), is a method of software development in which
Explain the term in brief- Test Script and Test Specification: Test Script: - It is generally used to refer to instructions for a particular test which will be carried out
What are the common activities in design process? i. System structuring - The system is subdivided into principle subsystems components and communications among these subsystem
EXPLAIN COMPONENTS OF DATABASE MANAGEMENT
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