Welcome to the Collection Classes and Mathematical Functions MCQs Page

Dive deep into the fascinating world of Collection Classes and Mathematical Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Collection Classes and Mathematical Functions, a crucial aspect of C# programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Collection Classes and Mathematical Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C# programming.

Check out the MCQs below to embark on an enriching journey through Collection Classes and Mathematical Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C# programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Collection Classes and Mathematical Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Collection Classes and Mathematical Functions MCQs | Page 2 of 5

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Q11.

Suppose value of the Capacity property of ArrayList Collection is set to 4. What will be the capacity of the Collection on adding fifth element to it?

Discuss

Answer: (b).8

Q12.

Which of the following is an ordered collection class?

1. Map
2. Stack
3. Queue
4. BitArray
5. HashTable

1 only

2 and 3 only

4 and 5 only

All of the above

Discuss

Answer: (b).2 and 3 only

Q13.

Which of the following is the correct way to find out the number of elements currently present in an ArrayList Collection called arr?

arr.Count

arr.GrowSize

arr.MaxIndex

arr.Capacity

Discuss

Answer: (a).arr.Count

Q14.

Which of the following statements are correct about a HashTable collection?

1. It is a keyed collection.
2. It is a ordered collection.
3. It is an indexed collection.
4. It implements a IDictionaryEnumerator interface in its inner class.
5. The key - value pairs present in a HashTable can be accessed using the Keys and Values properties of the inner class that implements the IDictionaryEnumerator interface.

1 and 2 only

1, 2 and 3 only

4 and 5 only

1, 4 and 5 only

Discuss

Answer: (d).1, 4 and 5 only

Q15.

Which of the following is the correct way to access all elements of the Stack collection created using the C#.NET code snippet given below?


Stack st = new Stack();
st.Push(11);
st.Push(22);
st.Push(-53);
st.Push(33);
st.Push(66);

IEnumerable e;
e = st.GetEnumerator();
while (e.MoveNext())
Console.WriteLine(e.Current);

IEnumerator e;
e = st.GetEnumerable();
while (e.MoveNext())
Console.WriteLine(e.Current);

IEnumerator e;
e = st.GetEnumerator();
while (e.MoveNext())
Console.WriteLine(e.Current);

IEnumerator e;
e = Stack.GetEnumerator();
while (e.MoveNext())
Console.WriteLine(e.Current);

Discuss

Answer: (c).IEnumerator e;
e = st.GetEnumerator();
while (e.MoveNext())
Console.WriteLine(e.Current);

Q16.

Which of the following statements are correct about the Collection Classes available in Framework Class Library?

Elements of a collection cannot be transmitted over a network.

Elements stored in a collection can be retrieved but cannot be modified.

It is not easy to adopt the existing Collection classes for newtype of objects.

They use efficient algorithms to manage the collection, thereby improving the performance of the program.

Discuss

Answer: (d).They use efficient algorithms to manage the collection, thereby improving the performance of the program.

Q17.

Which among the following is not the ordered collection class?

BitArray

Queue

Stack

None of the mentioned

Discuss

Answer: (a).BitArray

Q18.

Which among the following is not an interface declared in System.Collection namespace?

IDictionaryComparer

IEnumerable

IEnumerator

Icomparer

Discuss

Answer: (a).IDictionaryComparer

Q19.

Which among the following is the correct way to find out the number of elements currently present in an ArrayListCollection called arr?

arr.Capacity

arr.Count

arr.MaxIndex

arr.UpperBound

Discuss

Answer: (b).arr.Count

Q20.

Which statement is correct about the C#.NET code snippet given below?

Stack st = new Stack();
st.Push("Csharp");
st.Push(7.3);
st.Push(8);
st.Push('b');
st.Push(true);

Unsimilar elements like “Csharp”,7.3,8 cannot be stored in the same stack collection.

Boolean values can never be stored in Stack collection

Perfectly workable code

All of the mentioned

Discuss

Answer: (c).Perfectly workable code

Page 2 of 5

Welcome to the Collection Classes and Mathematical Functions MCQs Page

Collection Classes and Mathematical Functions MCQs | Page 2 of 5

Explore more Topics under C# programming

Basics of C# Programming

Data Types,Variables and Operators

Control Instructions

Classes and Objects

Arrays and Strings

Interfaces,Inheritance and Polymorphism

Functions and Subroutines

Indexers and Exception Handling

Console IO and Stream Classes

Delegates and Generics

LINQ

Namespaces and Preprocessors

Miscellaneous Topics

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