Are you looking for the Answers to NPTEL Cloud Computing and Distributed Systems Assignment 4? This article will help you with the answer to the National Programme on Technology Enhanced Learning (NPTEL) Course “NPTEL Cloud Computing and Distributed Systems Assignment 4“
What is Cloud Computing and Distributed Systems?
Over the years program several testing techniques have developed and tools have become available. Also, testing has been acknowledged as the primary technique for ensuring software reliability. The course would provide a brief introduction to test process and techniques available for black box and white box test case design. Integration, system and regression testing would also be discussed. A few of the test tools would be discussed and the participants would be encouraged to use.
CRITERIA TO GET A CERTIFICATE
Average assignment score = 25% of the average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100
Final score = Average assignment score + Exam score
YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF THE AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.
Below you can find the answers for the NPTEL Cloud Computing and Distributed Systems Assignment 4
|Cloud Computing and Distributed Systems Assignment 1||Click Here|
|Cloud Computing and Distributed Systems Assignment 2||Click Here|
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|Cloud Computing and Distributed Systems Assignment 4||Click Here|
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NPTEL Cloud Computing and Distributed Systems Assignment 4 Answers:-
Q1. Which of the following is not the property for quorums in a coterie ?
Q2. Which event is concurrent with the vector clock (3, 8, 4) ?
Q3. A client gets a timestamp of 5:12:30.500 from a time server. The elapsed time between the request and response was 40 msec (0.040 sec). The current time on the client is 5:12:30.520. Using Cristian’s algorithm i.e. server time + ½(elapsed time), what is the time set on the client ?
Q4. A client’s clock reads 4:30:00. The server’s clock reads 4:10:00 when they synchronize using the Berkeley algorithm. Assume message delays are negligible. What is the time at the client after synchronization ?
???? Next Week Answers: Assignment 04 ????
Q5. Consider the following event diagram where messages are exchanged among a set of three processes.
Can we prove that event b and i to be concurrent with Lamport’s scalar clock?
Q6. For the given event diagram, identify the correct events with vector clocks. Assume that the vector elements are all set to zero at the beginning.
Q7. The Chandy-Lamport algorithm uses a control message, called a marker whose role in a FIFO system is to separate messages in the channels.
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Q8. DTP (Datacenter Time Protocol) uses the network layer of network devices to implement a decentralized clock synchronization protocol.
Q9. Consider the following statements related to the Ricart-Agrawala algorithm:
Statement 1: The Ricart-Agrawala algorithm assumes the communication channels are FIFO. The algorithm uses two types of messages: REQUEST and REPLY.
Statement 2: A process sends a REQUEST message to all other processes to request their permission to enter the critical section. A process sends a REPLY message to a process to give its permission to that process.
Q10. ___________________ is a Google’s system for locking and used underneath Google’s systems like BigTable, Megastore, etc.
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