ADBMS Database Performance Tuning and Query Optimization Review

ADBMS Database Performance Tuning and Query Optimization Review

University

12 Qs

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ADBMS Database Performance Tuning and Query Optimization Review

ADBMS Database Performance Tuning and Query Optimization Review

Assessment

Quiz

Other

University

Practice Problem

Easy

Created by

Baron Niog

Used 84+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A classification of operation mode where the DBMS finds the most cost-effective access path without user intervention.

Automatic Query Optimization

Manual Query Optimization

Rule-based Optimizer

Cost-based Optimizer

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A classification of operation mode that requires the optimization to be selected and scheduled by the end-user or programmer.

Automatic Query Optimization

Manual Query Optimization

Rule-based Optimizer

Cost-based Optimizer

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Uses preset rules and points to determine the best approach to execute a query.

Automatic Query Optimization

Manual Query Optimization

Rule-based Optimizer

Cost-based Optimizer

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Uses algorithms based on statistics about objects being accessed to determine the best approach to execute a query.

Automatic Query Optimization

Manual Query Optimization

Rule-based Optimizer

Cost-based Optimizer

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A Query Processing Phase where the DBMS parses the SQL query and chooses the most efficient access/execution plan.

PARSING

EXECUTION

FETCHING

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A Query Processing Phase where the DBMS executes the SQL query using the chosen execution plan.

PARSING

EXECUTION

FETCHING

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A Query Processing Phase where the DBMS fetches the data and sends the result set back to the client.

PARSING

EXECUTION

FETCHING

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