Quiz: A Basic C# Skills Test Questions!
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There are different programming languages in existence, and understanding the most basic, which is C# (C Sharp), can be a little hard for some. The quiz below is designed to help you refresh your memory on what you have covered so far. Give it a shot and see how much you know!
- 1.Does C# support multiple inheritances?
- A.
Yes
- B.
No
- 2.What is the top .NET class that everything is derived from?
- A.
Object
- B.
System.Net
- C.
System.Object
- D.
System
- E.
System.Root
- 3.Which .NET collection class allows elements to be accessed using a unique key?
- A.
ListDictionary
- B.
Stack
- C.
Hashtable
- D.
ArrayList
- E.
StringCollection
- 4.Will the finally block get executed if an exception has not occurred?
- A.
Yes
- B.
No
- 5.Can multiple catch blocks be executed for a single try statement.
- A.
Yes
- B.
No
- 6.Does .NET support the ability to inherit multiple interfaces?
- A.
Yes
- B.
No
- 7.Which of these words are part of the "ACID" rule of thumb for database transactions? Select all that apply.
- A.
Isolated
- B.
Connected
- C.
Durable
- D.
Atomic
- E.
Integrity
- 8.The C# keyword "int" maps to which .NET type?
- A.
System.Int16
- B.
System.Int32
- C.
System.Int64
- D.
System.Int128
- 9.Which of these statements correctly declares a two-dimensional integer array in C#?
- A.
Int[,] myArray;
- B.
Int[][] myArray;
- C.
Int[2] myArray
- D.
System.Array[2] myArray;
- E.
System.Array[,] myArray;
- 10.If a method is marked as protected internal, who can access it?
- A.
Classes that are both in the same assembly and derived from the declaring class.
- B.
Only methods that are in the same class as the method in question.
- C.
Internal methods can only be called using reflection.
- D.
Classes within the same assembly, and classes derived from the declaring class.
- 11.What is boxing?
- A.
Encapsulating an object in a value type.
- B.
Encapsulating a copy of a value type in an object.
- C.
Encapsulating a copy of an object in a value type.
- D.
Encapsulating a value type in an object.
- 12.Which compiler switch creates an xml file from the xml comments in the files in an assembly?
- A.
/text
- B.
/doc
- C.
/xml
- D.
/help
- E.
/xmlhelp
- 13.Which common design pattern is shown below? public class A { private A instance; private A() { } public static A Instance { get { if(instance == null) instance = new A(); return instance; } } }
- A.
Factory
- B.
Abstract Factory
- C.
Singleton
- D.
Builder
- 14.Which of the following operations can you NOT perform on an ADO.NET DataSet?
- A.
A DataSet can be synchronized with the database.
- B.
A DataSet can be synchronized with a RecordSet.
- C.
A DataSet can be converted to XML.
- D.
You can infer the schema from a DataSet.
- 15.In Object Oriented Programming, which answers best describes encapsulation?
- A.
The conversion of one type of object to another.
- B.
The runtime resolution of method calls.
- C.
The exposition of data.
- D.
The separation of interface and implementation.
- 16.Can you change the value of a variable while debugging a C# application?
- A.
Yes
- B.
No
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