UBS Interview Question and Answers Last Updated : 22 Apr, 2025 Comments Improve Suggest changes Like Article Like Report 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 DSA Problems Operating System OOPS Computer Networks DSA ProblemsProblemsPracticeMin Cost PathSolve Given a sequence of words, print all anagrams together |SolveDecimal Equivalent of Binary Linked ListSolveImplement Queue using Linked ListSolve Find whether path existsSolveRemove BST keys outside the given rangeSolveIntersection point in Y shaped Linked listsSolvePossible paths between 2 verticesSolveSwap Kth node from beginning with Kth node from end in a Linked ListSolveUnit Area of largest region of 1’sSolveConvert a Binary Tree into Doubly Linked List in spiral fashionSolveNumber of turns in a binary treeSolveFixing two nodes of a BSTSolveReverse a Linked List in groups of given sizeSolveBoolean Parenthesization ProblemSolveSmallest Positive integer that can’t be represented as a sumSolveThe painter’s partition problemSolveLongest Alternating subsequenceSolveMax sum path in two arraysSolveReplace O’s with X’sSolveSearch Pattern (Z-algorithm)SolveLongest substring to form a PalindromeSolveCheck for balanced parentheses in an expressionSolveHeight of Binary TreeSolveCheck mirror in n-ary treeSolveSerialize and Deserialize Binary TreeSolveCount Possible Decodings of a given Digit SequenceSolveMatrix Chain MultiplicationSolveProgram to find the transpose of a matrixSolveFind the first circular tour that visits all petrol pumpsSolveConnect n ropes with minimum costSolveFind element occuring once when all other are present thriceSolveMinimum Number of Platforms Required for a Railway/Bus StationSolveSmallest number with at least n trailing zeroes in factorialSolveMultiply two stringsSolveLongest Prefix SuffixSolveBoundary Traversal of binary treeSolveCheck if subtreeSolveDiagonal Traversal of Binary TreeSolveBST to greater sum treeSolveTrapping Rain WaterSolveBoolean ParenthesizationSolveSpecial KeyboardSolveFind the number of islandsSolveStrongly Connected Components (Kosaraju's Algo)SolveX Total ShapesSolveTopological sortSolveSteps by KnightSolveHow to find Shortest Paths from Source to all Vertices using Dijkstra’s AlgorithmSolveOperating SystemAn 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. Write difference between micro kernel and monolithic kernel?What is SMP (Symmetric Multiprocessing)?What is Context Switching?What are various sections of the process?What is a deadlock in OS? What are the necessary conditions for a deadlock?What do you mean by Belady’s Anomaly?What is starvation and aging in OS?What is Reentrancy?What is the difference between paging and segmentation?What is a zombie process in Linux OS? OOPSObject-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.What is meant by Structured Programming?What are the main features of OOPs?What is encapsulation?What is Polymorphism?What is Compile time Polymorphism and how is it different from Runtime Polymorphism?What is Abstraction?What is a constructor?What is meant by static polymorphism?What is the difference between overloading and overriding?What is meant by exception handling?Computer NetworksA 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 NodeWhat do you understand by DNS?What is a peer-to-peer process?What is a ‘frame relay’, and which layer does it operate?What are the different features of Frame Relay?Differentiate between ‘attenuation’, ‘distortion’, and ‘noise’.Mention the uses of the Hamming code.What are nodes and links?Why is encryption on a network necessary? Comment More infoAdvertise with us Next Article UBS Interview Question and Answers K kartik Follow Improve Article Tags : Interview Experiences interview-preparation UBS Company Interview Questions Technical Interview Questions +1 More Similar Reads Top HR Interview Questions and Answers (2025) HR interviews can be daunting but they don’t have to be. The bottom line in most hiring processes entails testing the personality of a candidate for their communication traits and company culture fit. 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