1. How many Bytes are stored by ‘Long’ Data type in C# .net ? A. 2 Bytes B. 4 Bytes C. 8 Bytes D. 16 Bytes
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Answer: Option C
Explanation:
Long is the data type keyword used for storing data of unlimited length so by definition its size is always maximum i.e 8.
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2. Choose “.NET class” name from which data type “UInt” is derived ? A. System.UInt16 B. System.UInt64 C. System.UInt32 D. System.Int16
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Answer: Option B
Explanation:
By Definition class assigned to:
System.Int16 = short.
System.UInt32 = UInt.
System.UInt64 = ULong.
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3. Correct Declaration of Values to variables ‘a’ and ‘b’? A. int a = 32, b = 40.6; B. int a = 42; b = 40; C. int a = 32; int b = 40; D. int a = b = 42;
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Answer: Option C
Explanation:
1. Although, declaration of ‘b’ and ‘a’ are correct but initialization of value to ‘b’ should be ‘int’ data type not float.
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4. Arrange the following data type in order of increasing magnitude sbyte, short, long, int ? A. short < int < sbyte < long B. short < sbyte < int < long C. sbyte < short < int < long D. long < short < int < sbyte
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5. Which data type should be more preferred for storing a simple number like 35 to improve execution speed of a program ? A. sbyte B. short C. int D. long
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Answer: Option A
Explanation:
Wider data type like int, long takes more time for manipulation of a program.
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