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linq interview questions and answers

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2
 In which statement the LINQ query is executed?
  1. For Each statement in Visual 
    Basic
  2. foreach statement in C# 
  3. Both 
  4. None
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3
What does PLINQ stand for?
  1. Pipeline Language Integrated 
    Query
  2. Parallel Language Integrated
     Query
  3. Private Language Integrated 
    Query
  4. Public Language Integrated 
    Query
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5
Which assembly represents the core LINQ API?
  1. System.Data.DLinq.dll  
  2. System.XML.XLinq.dll
  3. System.Query.dll 
  4.  System.Linq.dll
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7
Which class's extension methods are used 
in LINQ to SQL?
  1. System.Linq.Enumerable
  2.  System.Linq.Queryable
  3. System.Linq.Equatable
  4. None
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11
Which assembly represents the core LINQ API?
  1. System.Query.dll 
  2. System.Linq.dll 
  3. System.BQuery.dll 
  4. All of the above
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12
What is the use of System.Data.DLinq.dll?
  1.  System.Data.DLinq.dll provides
     functionality to work with 
    LINQ to SQL
  2. System.Data.DLinq.dll provides functionality to 
    work with LINQ to C#
  3. System.Data.DLinq.dll provides functionality to work with LINQ to WCF
  4. None of the above
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13
Why can’t datareader be returned from a Web 
Services Method?
  1. datareader is not serializable.
  2. datareader is serializable.
  3. All of the above 
  4.  
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14
What are the three main components of LINQ?
  1. Standard Query Operators 
  2. Language Extensions 
  3. All of the above
  4. None of the above
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15
List the important language extensions made
 in C# to make LINQ a reality?
  1. Implicitly Typed Variables
  2. Anonymous Types 
  3. Object Initializers 
  4. . dll of the above
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16
What are Quantifiers?
  1. They are LINQ Extension methods
     which return a Boolean value.
  2. They are LINQ Extension methods
     which return Integer Value
  3. They are LINQ Extension
     methods which
     return  String.
  4. All of the above
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20
 Which extension method do you need to run a 
parallel query in PLINQ?
  1. AsParallel extension method.
  2. Take extension method
  3. distinct extension 
    method
  4. a & c
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