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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.
A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o
Question: Advanced Buttons and Event Detection. a. With two ways to assign event handlers to buttons, which one do you preferably use and why? on(press) vs. onPress b. Wh
Cloud computing is becoming an unrelenting force that is driving competition in the ERP industry and can no longer be ignored by legacy systems, such as Oracle and SAP. Larry Ellis
Micro CDS/ISIS Application: In libraries there are a number of repetitive operations. If one Miens the procedures for ordering, receiving, processing and circulating a book, o
Q. Explain working of Code inspectors? Code inspectors A code inspector does a simple job of enforcing standards in a uniform way for many programs. These are able to be sing
Describe Equivalence Partitioning Ans) Input data of a program is separated into different categories so that test cases can be developed for every category of input data. The g
Assuming that all the tables have been created as given in the relational schema, write SQL code to make the following changes in the structure of the tables: (i) Make the empl
Explain the Length of identifiers Length of identifiers :- This is a measure of the average length of separate identifiers in a program. The longer the identifiers, the more
QUESTION - Name Services (a) Illustrate with help of a diagram the results of a DNS lookup and an ARP lookup assuming we are using IPv4. (b) Why do DNS root servers hold en
For this assignment you will create a program called MMWordFix (Multi-Mode WordFix). This program prompts the user to select one of three word filters (uppercase, lowercase, encryp
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