Microsoft Certified Solutions Developer (MCSD) Practice Test 2025 – Complete Exam Prep

Question: 1 / 400

What is the purpose of the "Where" clause in LINQ?

To sort data in ascending order.

To act as a filter that returns a boolean value.

The "Where" clause in LINQ is designed to filter a sequence of data based on a specified condition. It evaluates each item in the collection and returns only those that meet the criteria defined in the predicate. The predicate is a function that returns a boolean value, determining whether or not each element should be included in the result set. This filtering capability allows developers to work with smaller, relevant subsets of data, which can improve performance and simplify data manipulation and analysis.

In the context of the other choices, sorting is handled by the "OrderBy" or "OrderByDescending" clauses, grouping is managed using the "GroupBy" clause, and joining two data sources together is performed using the "Join" clause. Each of these functionalities serves a different purpose within LINQ, but the "Where" clause specifically focuses on filtering data based on boolean conditions, making it integral for querying collections effectively.

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To group data by a specific property.

To join two data sources together.

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