UBS ENO Interview Questions and Answers

I developed a project for data analysis using Python and utilized various data structures such as lists, dictionaries, and sets.

• Used lists to store and manipulate data

• Used dictionaries to map key-value pairs for efficient data retrieval

• Used sets to perform operations such as union and intersection

• Implemented algorithms such as sorting and searching using appropriate data structures

Method is a function that belongs to a class or object, while function is a standalone block of code.

• A method is called on an object or class instance, while a function is called independently.

• A method can access and modify the state of an object, while a function cannot.

• A method is defined within a class or object, while a function is defined outside of them.

• Example of a method: object.methodName(), example of a ...read more

Vector is a class in C++ that represents a dynamic array.

• It allows for efficient insertion and deletion of elements.

• It automatically resizes itself as elements are added or removed.

• It can be used to implement other data structures like stacks and queues.

• Example: vector<int> v; v.push_back(5); v.push_back(10);

• Example: vector<string> names = {"Alice", "Bob", "Charlie"};

Linked List is a data structure in Java that stores a sequence of elements with pointers to the next element.

• Each element in a Linked List is called a node and contains a value and a pointer to the next node.

• Linked Lists are dynamic and can grow or shrink in size during runtime.

• Insertion and deletion operations are efficient in Linked Lists compared to arrays.

• Traversal in a Linked List is slower compared to arrays...read more

Derivatives are financial contracts that derive their value from an underlying asset or security.

• Types include futures, options, swaps, and forwards

• Used for hedging, speculation, and arbitrage

• Can be based on stocks, bonds, commodities, currencies, and more

Explanation of abstract, final, and static classes and inheritance in Java.

• Abstract classes are classes that cannot be instantiated and are meant to be extended by other classes.

• Final classes are classes that cannot be extended by other classes.

• Static classes are nested classes that can be accessed without creating an instance of the outer class.

• Static classes are different from non-static classes in that they can...read more