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- Question
Which of the following are necessary for Run-time Polymorphism?
- The overridden base method must be virtual, abstract or override.
- Both the override method and the virtual method must have the same access level modifier.
- An override declaration can change the accessibility of the virtual method.
- An abstract inherited property cannot be overridden in a derived class.
- An abstract method is implicitly a virtual method.
Options- A. 1, 3
- B. 1, 2, 5
- C. 2, 3, 4
- D. 4 only
- Correct Answer
- 1, 2, 5
- 1. Which of the following statement correctly assigns a value 33 to a variable c?
byte a = 11, b = 22, c;
Options- A. c = (byte) (a + b);
- B. c = (byte) a + (byte) b;
- C. c = (int) a + (int) b;
- D. c = (int)(a + b);
- E. c = a + b; Discuss
- 2. An enum can be declared inside a class, struct, namespace or interface.
Options- A. True
- B. False Discuss
- 3. Which of the following statements are correct about the Collection Classes available in Framework Class Library?
Options- A. Elements of a collection cannot be transmitted over a network.
- B. Elements stored in a collection can be retrieved but cannot be modified.
- C. It is not easy to adopt the existing Collection classes for newtype of objects.
- D. Elements stored in a collection can be modified only if allelements are of similar types.
- E. They use efficient algorithms to manage the collection, thereby improving the performance of the program. Discuss
- 4. Which of the following statements is correct about a namespace used in C#.NET?
Options- A. Nested namespaces are not allowed.
- B. Importing outer namespace imports inner namespace.
- C. Nested namespaces are allowed.
- D. If nested, the namespaces cannot be split across files. Discuss
- 5. Which of the following does not store a sign?
Options- A. Short
- B. Integer
- C. Long
- D. Byte
- E. Single Discuss
- 6. Which of the following is NOT an Integer?
Options- A. Char
- B. Byte
- C. Integer
- D. Short
- E. Long Discuss
- 7. Which of the following is the root of the .NET type hierarchy?
Options- A. System.Object
- B. System.Type
- C. System.Base
- D. System.Parent
- E. System.Root Discuss
- 8. Which of the following is NOT a Bitwise operator in C#.NET?
Options- A. &
- B. |
- C. <<
- D. ^
- E. ~ Discuss
- 9. Which of the following is the correct default value of a Boolean type?
Options- A. 0
- B. 1
- C. True
- D. False
- E. -1 Discuss
- 10. What will be the output of the C#.NET code snippet given below?
byte b1 = 0xAB; byte b2 = 0x99; byte temp; temp = (byte)~b2; Console.Write(temp + " "); temp = (byte)(b1 << b2); Console.Write (temp + " "); temp = (byte) (b2 >> 2); Console.WriteLine(temp);
Options- A. 102 1 38
- B. 108 0 32
- C. 102 0 38
- D. 1 0 1 Discuss
More questions
Correct Answer: c = (byte) (a + b);
Correct Answer: True
Correct Answer: They use efficient algorithms to manage the collection, thereby improving the performance of the program.
Correct Answer: Nested namespaces are allowed.
Correct Answer: Byte
Correct Answer: Char
Correct Answer: System.Object
Correct Answer: <<
Correct Answer: False
Correct Answer: 102 0 38
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