CS54200: Distributed Database Systems
Prof. Bharat Bhargava
Homework 4 PDF
Due date: April 25, 2017
Note: Written homework assignments are due at the start of class on the due date. Answer each question briefly.
a) How can the ideas of "degrees of commitment" be used in increasing the performance of
transaction processing during network partitioning?
b) What is view-serializability and how it can be used in network partitioning?
c) How can checkpoints be used to maintain consistency and help in recovery after a failure?
How would you change the design and algorithms for distributed database
processing if there were
multiple and frequent failures (like sites failing and recovering, network partitions, variable
communication delays, large number of lost messages)?
What are the types of attacks in internet and mobile communications? How
algorithms can be designed to deal with some of them?
What is the latency in LAN, WAN and in communicating with Cloud Services?
Try to measure it
using echo service or find it from papers under communication networks in CS542 course page.
How can you find at the time of merge if inconsistent updates have taken
place while network