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Quiz testing2

Q. 1        Query optimization is primarily concerned with:                 a) Designing the database schema.                 b) Choosing the best way to execute a given query.                 c) Increasing storage space.                 d) Ensuring ACID properties. Show Answer Answer: b Q. 5        In the context of query optimization, what does the term “selectivity” mean?                 a)

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Q

5 In the context of query optimization, what does the term “selectivity” mean? a) The percentage of disk space used by the table. b) The speed at which records are accessed. c) The fraction of records that satisfy a condition. d) The order in which records are stored. <button class=”acc”>Show Answer</button> <div class=”pnl”> <p> Answer:

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quiz testing 1

Q. 1 Query optimization is primarily concerned with: a) Designing the database schema. b) Choosing the best way to execute a given query. c) Increasing storage space. d) Ensuring ACID properties. Answer Answer: b Q. 2 Which phase of a DBMS translates a high-level query into a low-level query? a) Normalization phase b) Transaction phase

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Joint Japan World Bank Scholarship Program 2024

Advantage: Opportunity to study abroad and gain knowledge in the field of your interest. Cover the cost of economy-class air travel. A travel allowance for each trip. Full tuition fee coverage. Cover the medical insurance of scholarship recipients. A monthly allowance. Financial coverage: Fully Funded Country: Different Deadline: 24 May 2024 Apply now: https://tinyurl.com/38jadvck For

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