Microsoft 98-364 Database Fundamentals 01 31Oct2024 - Practice Quiz

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Question 1 of 30

A database administrator is tasked with improving the performance of a large e-commerce database that experiences slow query response times during peak traffic hours. The administrator decides to analyze the execution plans of the most frequently run queries. After reviewing the plans, they notice that several queries are performing full table scans instead of using indexes. What is the most effective strategy the administrator should implement to enhance query performance in this scenario?

Create appropriate indexes on the columns frequently used in WHERE clauses and JOIN conditions.

Increase the database server's hardware resources, such as CPU and RAM, without addressing query optimization.

Rewrite all queries to use subqueries instead of joins, assuming this will improve performance.

Regularly delete old data from the database to reduce the overall size of the tables.

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