The Memory Hierarchy Unit 3 • Learning Outcomes – Feb 12 • Define memory hierarchy. • Evaluate the performance differences found at the different layers of the hardware memory hierarchy. • Explain the different kinds of caching that processors and hardware systems perform to mitigate the performance differences between the levels of the memory hierarchy. […]
CS 186/286 Spring 2018 Final • Do not turn this page until instructed to start the exam. • You should receive 1 single-page answer sheet and a 25-page exam packet. • All answers should be written on the answer sheet. The exam packet will be collected but not graded. • You have 170 minutes to
CS W186 Introduction to Database Systems Spring 2020 Josh Hug, Michael Ball DIS 1 1 Single-Table SQL Write SQL queries to accomplish each task below. You will not need to join any tables. Assume you have access to tables with the following schemas, where each primary key is in ALL_CAPS: • Songs(SONG_ID, song_name, album_id, weeks_in_top_40)
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CS W186 Spring 2020 Disk and Files 1 Memory and Disk Whenever a database processes data, that data must exist in memory. Accessing this data is relatively fast, but once the data becomes very large, it becomes impossible to fit all of it within memory. Disks are used to cheaply store all of a database¡¯s
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CS 186/286 Spring 2018 Final • Do not turn this page until instructed to start the exam. • You should receive 1 single-page answer sheet and a 36-page exam packet. • All answers should be written on the answer sheet. The exam packet will be collected but not graded. • You have 170 minutes to
Contents: CS W186 Fall 2019 Midterm 1 Do not turn this page until instructed to start the exam. • You should receive one single-sided answer sheet and a 20-page exam packet. • The midterm has 6 questions, each with multiple parts, and worth a total of 79 points. Taking the exam: • You have 110
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CS 186/286 Fall 2017 Final Exam • Do not turn this page until instructed to start the exam. • You should receive 1 answer sheet and a 15-page exam packet. • All answers should be written on the answer sheet. The exam packet will be collected but not graded. • You have 3 hours to
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CS W186 Introduction to Database Systems Spring 2020 Josh Hug, Michael Ball DIS 8 1 Parallel Query Processing 1. What is the difference between inter- and intra- query parallelism? Inter-query parallelism operates between multiple queries, rather than within a single query, whereas intra-query parallelism operates within a single query (parallelism of the operators that make
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CS 186/286 Spring 2018 Midterm 2 • Do not turn this page until instructed to start the exam. • You should receive 1 single-page answer sheet and a 11-page exam packet. • All answers should be written on the answer sheet. The exam packet will be collected but not graded. • You have 80 minutes
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CS W186 Introduction to Database Systems Spring 2020 Josh Hug, Michael Ball DIS 9 1 Conflict Serializability (a) Draw the dependency graph (precedence graph) for the schedule. Solution: (b) Is this schedule conflict serializable? If so, what are all the conflict equivalent serial schedules? If not, why not? Solution: Yes. T3, T1, T2 and T1,
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