CSE 444 Practice Problems. DBMS Architecture. 1. Data Independence. (a) What
is physical data independence? (b) What properties of the relational model ...
CSE 444 Practice Problems. DBMS Architecture. 1. Data Independence. (a) What
is physical data independence? Solution: Physical data independence is a ...
CSE 444 Practice Problems. Query Optimization. 1. Query Optimization. Given
the following SQL query: Student (sid, name, age, address). Book(bid, title, author
).
CSE 444 Practice Problems. Parallel DBMSs and MapReduce. 1. Parallel Data
Processing Algorithms. (a) Describe how to compute the equi-join of two ...
Dec 17, 2009 ... SQL (24 points, 6 each part) You've been hired to work on a web site that ... (b)
Write a SQL query that returns the number of reviewers in each ...
CSE 581 Introduction to DBMS. Summary notes on Chapter 6: Database design
and the E-R Model. The focus of this chapter is on the entity-relationship data ...
Database Systems: The Complete Book,. Hector Garcia-Molina,. Jeffrey Ullman,.
Jennifer Widom. Most important: COME TO CLASS ! ASK QUESTIONS !
logging, i.e. the collection of protocol data recording which transactions have
been executed and which changes have been performed by them. DBMS.
to write an Erlang function divorce Name which takes the name of a person, finds
the person from .... is supported by Mnesia through a so called dirty interface.
Logging and recovery ensure that failures are masked to the users of transaction-based data management systems by providing automatic treatment for different ...
Chem 245. Practice Problems. Selected practice problems from the ends of the
chapters in Miessler, Fischer & Tarr, 5th edition. Also note the in-chapter ...
The other problems are suggested practice problems from the textbook, with ....
are for categorical data (binomial test, z-test or χ2 test) and problems from ...
Practice Problems 13. Chapter 7. CHE 151. Graham/07. 1.) A laser emits light of
frequency 4.74 x 10. 14 sec. -1 . What is the wavelength of the light in nm?
CSE 552: Distributed and Parallel Systems. Instructor: Tom Anderson (tom@cs).
TA: Lisa Glendenning (lglenden@cs). MW 10:30 – 11:50. (some weeks WF).
It is my great pleasure to present this laboratory manual for THIRD YEAR ...
practical/Lab Sessions related Database Management System covering various.
CSE 5234 (Approved): Distributed Enterprise Computing. Course Description.
Current application and middleware frameworks for distributed enterprise ...
Reed, Andrew William Roscoe, and Ralph F. Wachter, ed- itors, Topology and Category Theory in Computer Science, pages 357â390. Oxford, 1991.
Castle Point on Hudson, Hoboken, NJ 07030. Bethlehem, PA 18015 ... [11] proposed to dispatch a group of special computational agents into a network to ...
Jun 6, 2010 - Graham Cormode. AT&T Labs - Research [email protected]. S. Muthukrishnan. Rutgers ...... A. D. Joseph, M. Jordan, and N. Taft.
Part 2: Monohybrid Crosses. 1. In minks, coat color is controlled by a single gene.
The allele for a brown (B) coat is dominant to the allele for silverblue (b) coats.
Feb 25, 2013 - C is the high temperature reservoir for the heat pump. ... You are asked to design a solar powered heat e
Feb 25, 2013 - You are asked to design a solar powered heat engine to produce 100 kW of work. ... A system executes a po
2015 Practice Programming Problems 6 2. The diameter of a set of points in the plane is the maximum distance between any two of them. Write a program that, given the ...
CSE 444 Practice Problems. Distributed DBMS. 1. Two-phase Commit. (a) In the
two-phase commit protocol, what happens if the coordinator sends PREPARE ...
CSE 444 Practice Problems Distributed DBMS
1. Two-phase Commit (a) In the two-phase commit protocol, what happens if the coordinator sends PREPARE messages and crashes before receiving any votes? i. What is the sequence of operations at the coordinator after it recovers.
ii. What is the sequence of operations at a subordinate that received the message and replied to it before the coordinator crashed.
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iii. What is the sequence of operations at a subordinate that did not receive the message before the coordinator crashed.
(b) In the two-phase commit protocol, why do subordinates need to force-write a prepared log record before sending a YES VOTE? To answer this question, use an example failure scenario. Show what happens if a subordinate does NOT force-write the prepared log record, then show what happens if the subordinate does force-write the prepared log record.
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2. Replication (a) In eager master replication, when the master fails, why does a group of replicas need to have the majority of nodes in order to elect a primary and continue processing requests?
(b) What are the differences between eager and lazy replication? Please list differences in the approaches and differences in the properties that result. Discuss master vs group replication if appropriate.
