LINQ (Language-Integrated Query) in C Sharp MCQ question and answer with solution

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Learn LINQ (Language-Integrated Query) in C Sharp MCQ Questions and answers with easy and logical explanations in C# Program. LINQ (Language-Integrated Query) in C Sharp MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination. Page-2 section-1

What is the purpose of the GroupBy operator in LINQ?

A) Groups the elements of a sequence based on a key B) Orders the elements of a sequence based on a key C) Filters a sequence based on a predicate D) Projects each element of a sequence

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Answer & Solution

Answer: Option A

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In LINQ, what does the Skip operator do?

A) Returns the number of elements in a sequence B) Returns the last element of a sequence C) Returns the first element of a sequence D) Bypasses a specified number of elements and then returns the remaining elements

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Answer & Solution

Answer: Option D

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Which LINQ operator is used to join two sequences based on matching keys?

A) GroupJoin B) Concatenate C) Join D) Intersect

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Answer & Solution

Answer: Option C

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What is the purpose of the Distinct operator in LINQ?

A) Filters a sequence based on a predicate B) Returns distinct elements from a sequence C) Projects each element of a sequence D) None of the above

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Answer & Solution

Answer: Option B

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In LINQ, what does the Max operator do?

A) Returns the average value of a sequence B) Returns the sum of all values in a sequence C) Returns the maximum value in a sequence D) Returns the minimum value in a sequence

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Answer & Solution

Answer: Option C

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What is the purpose of the SelectMany operator in LINQ?

A) Filters a sequence based on a predicate B) Orders the elements of a sequence C) Groups the elements of a sequence D) Projects each element of a sequence and flattens the resulting sequences

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Answer & Solution

Answer: Option D

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Which LINQ operator is used to perform an inner join between two sequences based on matching keys?

A) Join B) GroupJoin C) Concat D) Intersect

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Answer & Solution

Answer: Option A

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What is the purpose of the Take operator in LINQ?

A) Returns a specific element from a sequence B) Returns the number of elements in a sequence C) Returns the last element of a sequence D) Returns a specified number of contiguous elements from the start of a sequence

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Answer & Solution

Answer: Option D

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In LINQ, what does the Count operator do?

A) Determines whether any element exists in a sequence that satisfies a condition B) Determines whether all elements in a sequence satisfy a condition C) Returns the number of elements in a sequence D) Returns a specific element from a sequence

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Answer & Solution

Answer: Option C

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Which LINQ operator is used to perform a left outer join between two sequences based on matching keys?

A) Except B) GroupJoin C) Union D) None of the above

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Answer & Solution

Answer: Option B

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LINQ (Language-Integrated Query) in C Sharp MCQ question and answer with solution | C# Program MCQs