Question 21 : Select the correct statement about properties of read and write in C#.NET?
1. A property can simultaneously be read or write only
2. A property cannot be either read only or write only
3. A write only property will only have get accessor
4. A read only property will only have get accessor
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Question 22 : If the math class had add property with get accessors then which of the following statements will work correctly?
1. math m = new math(); m.add = 10;
2. math m = new math(); m.add = m.add + 20;
3. math m = new math(); int i; i = m.add;
4. math.add = 20;
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Question 23 : If math class had add property with get and set accessors, then which of the following statements will work correctly?
1. math.add = 20;
2.

    math m =  new math();    m.add = 10;

3. Console.WriteLine(math.ad
4. ;d) None of the mentioned
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Question 24 : Consider a class maths and we had a property called as sum.b which is the reference to a maths object and we want the statement Console.WriteLine(b.sum)to fail.Which among the following is the correct solution to ensure this functionality?
1. Declares sum property with only get accessor
2. Declares sum property with only set accessor
3. Declares sum property with both set and get accessor
4. Declares sum property with both set, get and normal accessor
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Question 25 : Consider a class maths and we had a property called as sum.b is a reference to a maths object and we want the statement b.sum = 10 to fail.Which of the following is the correct solution to ensure this functionality?
1. Declare sum property with both get and set accessors
2. Declare sum property with only get accessor
3. Declare sum property with get, set and normal accessors
4. None of the mentioned
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Question 26 : Choose the correct statements about write-only properties in C#.NET?
1. Properties which can only be set
2. Properties once set and hence values cannot be read back in nature
3. Useful for usage in classes which store sensitive information like password of a user
4. All of the mentioned
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Question 27 : Select the modifiers which can be used with the properties?
1. Private
2. Public
3. Protected Internal
4. All of the mentioned
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Question 28 : Where the properties can be declared?
1. Class
2. Struct
3. Interface
4. All of the mentioned
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Question 29 : Choose the statements which makes use of essential properties rather than making data member public in C#.NET?
1. Properties have their own access levels like private, public, protected etc. which allows it to have better control about managing read and write properties
2. Properties give us control about what values may be assigned to a member variables of a class they represent
3. Properties consist of set accessor inside which we can validate the value before assigning it to the data variable
4. All of the mentioned
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Question 30 : Choose the wrong statement about the properties used in C#.NET?
1. Each property consists of accessor as get and set
2. A property cannot be either read or write only
3. Properties can be used to store and retrieve values to and from the data members of a class
4. Properties are like actual methods which work like data members
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