What is the value of b3 after the following code is executed?
Dim b1 As Boolean? = True
Dim b2 As Boolean? = Nothing
Dim b3 As Boolean? = IIf(b1 AndAlso b2, b1, b2)

Which are valid means of reading all data from a file into a string?

Which method calls will compile the following? Private Sub Sample(ByVal number As Integer, Optional ByVal bool As Boolean = True) End Sub

Which mechanisms are not suitable for returning a single row from a DataTable containing a large number of records?

What does the OrElse operator do?

Which are true of the System.Text.StringBuilder class?

The output generated by the following code will be: string t = 'This Is a Test'; t.Replace('T', '?'); Console.WriteLine(t);

Which is characteristics of the System.Threading.Timer class?

Which characteristic is present in the DateTime Type?

Which features that are not supported in the System.TimeZone class does the System.TimeZoneInfo class provide?

Which is true with respect to the standard implementation of Garbage Collection?