Q1. Exercise 3 – Solution No, AB+ = {A,B,C},a proper subset of {A,B,C,D,E} Yes, ABD+ = {A,B,C,D,E} Q2. Let us use the following shorthand notation: C = CourseNo, SN = SecNo, OD = OfferingDept, CH = CreditHours, CL = CourseLevel, I = InstructorSSN, S = Semester, Y = Year, D = Days_Hours, RM = RoomNo, […]
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UC Berkeley – Computer Science CS61B: Data Structures Final, Fall 2020 This test has 9 questions across 18 pages worth a total of 1600 points and is to be completed in 170 minutes. The exam is closed book, except that you are allowed to use two double sided written cheat sheets (front and back). No
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Physical Database Design * Overview 1 * Overview: Database Design Data models: ER, Relational Data Model and their mapping Relational Algebra: be able to use relational algebra to answer question. Database Languages: SQL, PLpgSQL (final exam: You can read and understand SQL code and convert it to Relational Algebra Expression) Relational Database Design: Functional Dependency,
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UC Berkeley – Computer Science M25112-A CS61B: Data Structures Final, Spring 2015 – SOLUTIONS, BETA. PLEASE POST TO PIAZZA IF YOU SPOT ANY BUGS (of which there is almost certainly at least one) This test has 14 questions worth a total of 60 points. The exam is closed book, except that you are allowed to
5/2/2021 Exam 02 Multiple Choice: CMPSC 450 Spring 2021 Exam 02 Multiple Choice Due Mar 15 at 8:50pm Points 8 Questions 8 Available Mar 15 at 8am – Mar 15 at 8:50pm about 13 hours Time Limit None This quiz was locked Mar 15 at 8:50pm. Attempt History Attempt Time Score LATEST Attempt 1 15
CS61B, 2021 Lecture 37: Software Engineering IV ¡ñ Software Engineering Engineering datastructur.es 61B: But One of Many Possibilties We¡¯re now mostly done with 61B! Today, as an experiment, we¡¯ll be reflecting on 61B itself. ¡ñ How was it designed? ¡ñ What did people think? ¡ñ What works about the class? And what doesn¡¯t? ¡ñ What
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Data Access Optimization CMPSC 450 Review: Memory Hierarchy • Latency increases with distance • Memory size increases with distance CMPSC 450 Vector Triad Benchmark A Simple streaming benchmark: double A[N], B[N], C[N], D[N] do j=1,R { do i = 1,N { A[i] = B[i] + C[i] * D[i] } 3 loads, 1 store 2FLOPS if
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UC Berkeley – Computer Science CS61B: Data Structures Final, Spring 2018 This test has 12 questions worth a total of 400 points and is to be completed in 170 minutes. There is also an additional 30 point question that is part of midterm 2. The exam is closed book, except that you are allowed to
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4 26 1357 35 12467 CS61B, 2020 Lecture 17: B-Trees ¡ñ BST Performance ¡ñ Big O ¡ Worst Case ¡ñ 2-3-4 and 2-3 Tree Operations (a.k.a. B-Trees) ¡ñ B-Tree Bushiness Invariants ¡ñ B-Tree Performance datastructur.es BST Tree Height datastructur.es BST Tree Height Let¡¯s start today by carefully discussing the height of binary search trees. Trees
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3/30/20 1 Transactions, Recovery and Concurrency (I) Air-line Reservation • 10 available seats vs 15 travel agents. • How do you design a robust and fair reservation system? – Insufficient resources – Fair policy to every body – Robustness 3/30/20 2 Failures Number of factors might cause failures in user requirements processing. 3/30/20 3 1.
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