Member Of Technical Staff (MTS) Interview Questions and Answers

Landing an MTS role at your dream company would be your ticket to a world of cutting-edge technology and challenging projects. But to ace the interview, you need to be armed with the knowledge and skills that separate the best from the rest. To help you with that, we’ve compiled 70 essential interview questions, covering the core areas of Data Structures and algorithms (DSA), Object-Oriented Programming (OOPS), Database Management Systems (DBMS), Operating Systems (OS), and Computer Networks, all specifically tailored for the MTS profile. This bunch of practice problems will sharpen your skills and boost your confidence, creating the way for a stellar MTS interview performance. So, buckle up, get ready to code, and conquer your tech dreams!

DSA Questions

Problems	Practice
Detect loop or cycle in a linked list	Try it
Search in a matrix	Try it
Nth node from end of linked list	Try it
Rotate by 90 degree	Try it
Nuts and Bolts Problem	Try it
First non-repeating character in a stream	Try it
Minimum number of jumps	Try it
Top View of Binary Tree	Try it
Word Ladder I	Try it
Get minimum element from stack	Try it
Decimal Equivalent of Binary Linked List	Try it
Edit Distance	Try it
Alien Dictionary	Try it
Majority Element	Try it
Reduce the string by removing K consecutive identical characters	Try it
Segregate 0s and 1s in an array	Try it
Sort an array of 0s, 1s and 2s | Dutch National Flag problem	Try it
Maximum size square sub-matrix with all 1s	Try it
Length of the longest substring without repeating characters	Try it
Trapping Rain Water	Try it
Remove Duplicates from an Unsorted Linked List	Try it
Boundary Traversal of binary tree	Try it
Triplet Sum in Array (3sum)	Try it
Search an element in a sorted and rotated Array	Try it
Implement Stack using 2 Queues	Try it
Maximum length substring having all same characters after k changes	Try it
Find the first circular tour that visits all petrol pumps	Try it
Minimum time required to rotten all oranges	Try it
Move all zeroes to end of array	Try it
Find the longest substring with k unique characters in a given string	Try it
Next higher palindromic number using the same set of digits	Try it
How to find Shortest Paths from Source to all Vertices using Dijkstra’s Algorithm	Try it
Reverse a Linked List	Try it
Find next greater number with same set of digits	Try it
Largest Sum Contiguous Subarray (Kadane’s Algorithm)	Try it
Level order traversal in spiral form	Try it
Bubble Sort – Data Structure and Algorithm Tutorials	Try it
Find the longest path in a matrix with given constraints	Try it
Longest Palindromic Substring	Try it
Sort string of characters	Try it
Find GCD or HCF of Two Numbers	Try it
Find the middle of a given linked list	Try it
The Stock Span Problem	Try it
Minimum number of deletions and insertions to transform one string into another	Try it
Find the number of islands using DFS	Try it
Clone a Linked List with next and Random Pointer	Try it
Merge K sorted linked lists | Set 1	Try it
Maximum sum submatrix	Try it
Maximum path sum that starting with any cell of 0-th row and ending with any cell of (N-1)-th row	Try it
Sum of all the numbers that are formed from root to leaf paths	Try it
Capacity To Ship Packages Within D Days	Try it
Check if two trees are Mirror	Try it
Search in a row wise and column wise sorted matrix	Try it
Chocolate Distribution Problem	Try it
Diameter of a Binary Tree	Try it
Lowest Common Ancestor in a Binary Tree	Try it
Reverse a Linked List in groups of given size	Try it
Remove minimum number of characters so that two strings become anagram	Try it
Rearrange characters in a String such that no two adjacent characters are same	Try it
Find the Maximum Depth or Height of given Binary Tree	Try it
Find the Missing Number	Try it
Climbing Stairs to reach at the top.	Try it
Wildcard Pattern Matching	Try it
Minimum time to burn a Tree starting from a Leaf node	Try it
Permutations of given String	Try it
Find sum of all left leaves in a given Binary Tree	Try it
Most frequent word in an array of strings	Try it
Reverse words in a given string	Try it
Check if a string is a scrambled form of another string	Try it
Print all occurrences of a string as a substring in another string	Try it

Core Subjects

OS

• Explain the core functions of an operating system.
• Differentiate between processes and threads.
• Describe the memory management strategies used by an OS, including paging.
• Comparison of Different CPU Scheduling Algorithms in OS
• File systems in OS
• Virtualization in Cloud Computing and Types
• Inter-process communication (IPC) mechanisms in OS.
• System Protection in OS.
• Explain how device drivers interact with the OS and hardware devices.
• Causes of failure in OS.

DBMS

• Explain the ACID properties in DBMS.
• Differentiate between Structured Query Language (SQL) and NoSQL databases. Discuss their advantages and disadvantages.
• Describe different types of joins used in SQL queries and explain their functionalities.
• Explain the concept of database normalization and its importance in reducing data redundancy and improving data integrity.
• Discuss different types of database indexes and their impact on query performance.
• Explain the concept of database views and their advantages in data security and simplifying complex queries.
• Discuss different types of database storage engines like InnoDB and MyISAM, highlighting their strengths and weaknesses.
• Describe the concept of database replication and its benefits in ensuring data availability and disaster recovery.
• Explain how to optimize a slow SQL query by analysing the execution plan and identifying potential bottlenecks.
• Discuss different backup and recovery strategies for databases to ensure data protection and minimize downtime.

Computer Networks

• Explain the OSI model and its seven layers.
• Differentiate between TCP and UDP protocols.
• Explain the concept of subnetting.
• Describe the different types of network devices and their roles.
• Explain the purpose of DNS and how it works.
• Discuss the concept of network security and different types of threats.
• Explain the difference between wired and wireless networking.
• Describe the working principle of a VPN.
• Explain the concept of load balancing.
• Challenges of computer network.

OOPS

• Explain the four pillars of OOPs
• Differentiate between classes and objects.
• Describe the different types of inheritance and their advantages.
• Explain method overriding and overloading with examples.
• Explain the purpose of access modifiers and their impact on data access.
• Discuss the concept of interfaces and how they differ from abstract classes.
• Explain exception handling mechanisms in your preferred programming language.
• Compare and contrast mutable and immutable objects, and discuss the implications for thread safety and data consistency.
• Discuss the benefits of using design patterns in object-oriented programming.
• Diamond Problem