Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q4 DP
Consider R(A,B.C,D) and Functional dependencies A -> B, B -> C, C-> D, D -> B.
Following decomposition of R is BCNF
О (А,С), (А,B), (В,D)
О (А,В, С), (В,С), (С,D)
O (A,B),(B,C),(B,D)
Save Answer
Q5 lossless join
Consider R(A,B,C,D) and Functional dependencies A -> B, B ->C, C-> D, D -> B.
Following decomposition of R is lossless
O (A,C), (A,B), (B,D)
О (А,В, С), (В,С), (С,D)
O (A,B),(B,C),(B,D)
Transcribed Image Text:Q4 DP Consider R(A,B.C,D) and Functional dependencies A -> B, B -> C, C-> D, D -> B. Following decomposition of R is BCNF О (А,С), (А,B), (В,D) О (А,В, С), (В,С), (С,D) O (A,B),(B,C),(B,D) Save Answer Q5 lossless join Consider R(A,B,C,D) and Functional dependencies A -> B, B ->C, C-> D, D -> B. Following decomposition of R is lossless O (A,C), (A,B), (B,D) О (А,В, С), (В,С), (С,D) O (A,B),(B,C),(B,D)
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