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Unit 4. Failure Recovery in Distributed Systems
On this page, you will find all the most important and most asked previous year questions from unit 4 Failure Recovery in Distributed Systems .
It will help you in the preparation of your semester exam to score good marks. It will also save you from the backlogs.
Topic : Failure Recovery in Distributed Systems (Key Note and Questions)
Key Note:
Questions
- Q1). What do you mean by error? Explain forward recovery and backward recovery. Also write its advantage and disadvantage.
- Q2). Write the approaches for implementing backward-error recovery.
- Q3). Explain the problem which are caused by the rolling back of process.
- Q4). Write a short note on: 1. Method to obtain consistent set of checkpoints. 2. Domino effect.
- Q5). Define the liveliocks. What is the difference between a deadlock and livelock.
- Q6). What is livelock problem in message passing system? How the synchronous checkpointing methods avoid the livelock problem? Describe.
- Q7). Write short notes on: 1. Livelocks 2. Domino effects 3. Failure resilient processes 4. Consistent checkpoints.
- Q8). What is checkpoint in message passing system? Explain the recovery in message passing system using asynchronous checkpoint scheme.
- Q9). Define fault and failure. What are difference approaches to fault tolerance? Explain.
- Q10). What are commit protocols? Explain two phase commit protocol. How the protocol handles the site failure? Also explain its limitation.
- Q11). Describe the three-phase commit protocol . How three-phase commit protocol is different than two phase commit protocol?
- Q12). What is voting protocol? Explain static voting and dynamic voting protocols.
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