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UBS Interview Question and Answers

Last Updated : 31 Jan, 2024
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To land your ideal job at UBS, the global financial powerhouse, you must first pass a tough interview process. Do not be worried aspiring analysts and coders! This in-depth article clears up the confusion by presenting the most frequently asked DSA, DBMS, OOP, OS, and CN questions in UBS interviews. We’ll give you the knowledge you need to ace your technical assessment and secure your spot in the world of high finance. Prepare to learn a lot about algorithms, data structures, database optimisation, object-oriented design principles, memory management, networking protocols, and other topics. This insider’s guide is your best tool for overcoming the UBS coding challenge and maximising your professional potential. Dive in and let us help you code your way to success!

Table of Content

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DSA Problems

Problems

Practice
Min Cost Path Solve 
Given a sequence of words, print all anagrams together | Solve
Decimal Equivalent of Binary Linked List Solve
Implement Queue using Linked List Solve 
Find whether path exists Solve
Remove BST keys outside the given range Solve
Intersection point in Y shaped Linked lists Solve
Possible paths between 2 vertices Solve
Swap Kth node from beginning with Kth node from end in a Linked List Solve
Unit Area of largest region of 1’s Solve
Convert a Binary Tree into Doubly Linked List in spiral fashion Solve
Number of turns in a binary tree Solve
Fixing two nodes of a BST Solve
Reverse a Linked List in groups of given size Solve
Boolean Parenthesization Problem Solve
Smallest Positive integer that can’t be represented as a sum Solve
The painter’s partition problem Solve
Longest Alternating subsequence Solve
Max sum path in two arrays Solve
Replace O’s with X’s Solve
Search Pattern (Z-algorithm) Solve
Longest substring to form a Palindrome Solve
Check for balanced parentheses in an expression Solve
Height of Binary Tree Solve
Check mirror in n-ary tree Solve
Serialize and Deserialize Binary Tree Solve
Count Possible Decodings of a given Digit Sequence Solve
Matrix Chain Multiplication Solve
Program to find the transpose of a matrix Solve
Find the first circular tour that visits all petrol pumps Solve
Connect n ropes with minimum cost Solve
Find element occuring once when all other are present thrice Solve
Minimum Number of Platforms Required for a Railway/Bus Station Solve
Smallest number with at least n trailing zeroes in factorial Solve
Multiply two strings Solve
Longest Prefix Suffix Solve
Boundary Traversal of binary tree Solve
Check if subtree Solve
Diagonal Traversal of Binary Tree Solve
BST to greater sum tree Solve
Trapping Rain Water Solve
Boolean Parenthesization Solve
Special Keyboard Solve
Find the number of islands Solve
Strongly Connected Components (Kosaraju’s Algo) Solve
X Total Shapes Solve
Topological sort Solve
Steps by Knight Solve
How to find Shortest Paths from Source to all Vertices using Dijkstra’s Algorithm Solve

Operating System

An Operating System(OS) is software that manages and handles the hardware and software resources of a computer system. It provides interaction between users of computers and computer hardware.

OOPS

Object-oriented programming – As the name suggests uses objects in programming. Object-oriented programming aims to implement real-world entities like inheritance, hiding, polymorphism, etc. in programming.

Computer Networks

A computer network is a collection of computers or devices connected to share resources. Any device which can share or receive the data is called a Node


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