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I applied via Referral and was interviewed in Mar 2024. There was 1 interview round.
Check if a binary tree is a Binary Search Tree (BST) by validating the inorder traversal.
Perform an inorder traversal of the binary tree and store the elements in a list.
Check if the list is sorted in ascending order. If yes, then the binary tree is a BST.
Ensure that there are no duplicate elements in the binary tree.
Reorder a linked list by alternating between the first and last elements
Create two pointers, one at the beginning and one at the end of the linked list
Iterate through the linked list, moving the first pointer to the next node and the second pointer to the previous node
Adjust the pointers to reorder the linked list by alternating between the first and last elements
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C code for printing Fibonacci Series upto n elements
Declare three variables to store the current, previous and next numbers in the series
Initialize the previous and current variables to 0 and 1 respectively
Use a loop to print the next number in the series by adding the previous two numbers
Loop should run n times to print n elements in the series
I was interviewed in Mar 2017.
I have the technical skills, experience, and passion to deliver high-quality software solutions.
I have a strong background in programming languages such as Java, Python, and C++.
I have experience working on complex software projects and collaborating with cross-functional teams.
I am passionate about staying up-to-date with the latest technologies and trends in software development.
I am a quick learner and have a strong...
Ericsson is a global leader in telecommunications technology with a strong focus on innovation and career development.
Global leader in telecommunications technology
Strong focus on innovation
Opportunities for career development
I was interviewed in Feb 2017.
posted on 3 May 2017
I was interviewed before May 2016.
I was interviewed in Mar 2017.
To make the red fishes 98%, 50 fishes have to be removed from the aquarium.
Calculate 1% of 200 fishes, which is 2 fishes.
To make the red fishes 98%, subtract 1% (2 fishes) from 99% (198 fishes).
To find the number of fishes to be removed, divide the difference by 1% (2 fishes).
Therefore, 50 fishes have to be removed to make the red fishes 98%.
I was interviewed in Mar 2017.
To make the red fishes 98%, 50 fishes have to be removed from the aquarium.
Calculate 1% of 200 fishes to find the number of red fishes.
Subtract the number of red fishes from 200 to find the number of non-red fishes.
Calculate 2% of the total number of fishes to find the desired number of red fishes.
Subtract the desired number of red fishes from the current number of red fishes to find the number of fishes to be removed.
posted on 28 Jun 2017
I was interviewed in Mar 2017.
To make the red fishes 98%, 50 fishes have to be removed from the aquarium.
Calculate 1% of 200 fishes to find out how many fishes represent 1%.
Multiply the result by 2 to find out how many fishes represent 2%.
Subtract the result from 200 to find out how many fishes represent 98%.
I was interviewed before Mar 2021.
Round duration - 15 minutes
Round difficulty - Easy
This was a group discussion round where we were divided into groups of 10 and we had 15 minutes for GD.
Round duration - 60 minutes
Round difficulty - Medium
This is all about how good you are with the fundamentals. Out of 10 I would give it a 6.5 on difficulty.
You are given a string STR
which contains alphabets, numbers, and special characters. Your task is to reverse the string.
STR = "abcde"
"e...
Reverse a given string containing alphabets, numbers, and special characters.
Iterate through the string from the end to the beginning and append each character to a new string.
Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.
Handle special characters and numbers while reversing the string.
Ensure to consider the constraints on the length of the string and the
A deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
Occurs in multitasking environments where processes compete for limited resources
Can be resolved using techniques like deadlock prevention, deadlock avoidance, and deadlock detection
Example: Process A holds Resource X and waits for Resource Y, while Process B holds Resource Y and wa
A thread is a lightweight sub-process that allows concurrent execution within a single process.
Threads share the same memory space within a process.
Threads are used to achieve parallelism and improve performance.
Examples of threads include the main thread in a program and worker threads in a multi-threaded application.
Multiprocessing involves multiple processors executing multiple tasks simultaneously, while multiprogramming involves multiple programs sharing a single processor by switching between them.
Multiprocessing utilizes multiple processors to execute multiple tasks concurrently.
Multiprogramming involves multiple programs sharing a single processor by switching between them.
Multiprocessing is more efficient in terms of perfor...
Process life cycle in an operating system involves creation, execution, termination, and resource management.
Creation: When a process is created, it is assigned a unique process ID and allocated necessary resources.
Execution: The process is then scheduled by the operating system to run on the CPU.
Termination: Once the process completes its task or is terminated by the user, it is removed from memory.
Resource Management...
Windows XP and Windows 7 are both operating systems developed by Microsoft, but they have several key differences.
User interface: Windows 7 has a more modern and user-friendly interface compared to Windows XP.
Performance: Windows 7 is generally faster and more stable than Windows XP.
Security: Windows 7 has more advanced security features and updates compared to Windows XP.
Hardware support: Windows 7 supports newer hard...
Round duration - 60 minutes
Round difficulty - Easy
Technical round with questions on DBMS and Networking mainly.
RDBMS is a type of DBMS that stores data in a structured format with relationships between tables.
RDBMS enforces referential integrity and allows for normalization of data.
DBMS is a general term for any system that manages databases, while RDBMS specifically refers to relational databases.
Examples of RDBMS include MySQL, Oracle, and SQL Server.
Examples of DBMS include MongoDB and Redis.
An Object-Oriented Database Management System (OODBMS) is a type of database management system that supports the creation and management of objects in a database.
OODBMS stores data in the form of objects, which can contain attributes and methods.
It allows for complex data structures and relationships to be represented more easily.
Examples of OODBMS include db4o, ObjectDB, and ObjectStore.
Use the COUNT DISTINCT function in SQL to find the number of unique values in a database.
Use the COUNT DISTINCT function along with the column name to count the number of unique values in that column.
For example, SELECT COUNT(DISTINCT column_name) FROM table_name;
You can also use GROUP BY to find the number of unique values for multiple columns.
A hub operates at the physical layer and broadcasts data to all devices on the network, while a switch operates at the data link layer and forwards data only to the intended recipient.
Hub operates at the physical layer, while switch operates at the data link layer
Hub broadcasts data to all devices on the network, while switch forwards data only to the intended recipient
Switch is more efficient and secure compared to a
The OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.
Physical Layer: Deals with the physical connection between devices. Example: Ethernet cables.
Data Link Layer: Responsible for node-to-node communication. Example: MAC addresses.
Network Layer: Manages routing of data packets. Example: IP addresses.
T...
Different protocols supported at each OSI layer
Layer 1 (Physical): Ethernet, Wi-Fi, Bluetooth
Layer 2 (Data Link): MAC, PPP, HDLC
Layer 3 (Network): IP, ICMP, ARP
Layer 4 (Transport): TCP, UDP, SCTP
Layer 5 (Session): NetBIOS, PPTP
Layer 6 (Presentation): SSL, TLS
Layer 7 (Application): HTTP, FTP, SMTP
Round duration - 15 minutes
Round difficulty - Easy
IF you make it to the HR round you are selected. All 28 that attended got selected . It was more like stuff for formality. The usual questions.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I was interviewed before Mar 2021.
Round duration - 60 minutes
Round difficulty - Easy
Need to write working code on a shared document so that the interviewer can see if you can put your ideas into code. In this round, they are not bothered about time complexity of your algorithm. They just wanted to know if you can code whatever you think. So if you do not find best solution also it is OK but write the code for average case at-least.
Given a sorted array that has been rotated clockwise by an unknown amount, you need to answer Q
queries. Each query is represented by an integer Q[i]
, and you must ...
Search for integers in a rotated sorted array efficiently.
Use binary search to find the pivot point where the array is rotated.
Based on the pivot point, apply binary search on the appropriate half of the array.
Return the index of the integer if found, else return -1.
Time complexity should be O(logN) for each query.
Given a Binary Search Tree (BST) and a target value 'K', determine if there exist two unique elements in the BST such that their sum equals the target 'K'.
A ...
Check if there exist two unique elements in a BST that sum up to a target value 'K'.
Traverse the BST in-order to get a sorted array of elements.
Use two pointers approach to find the pair sum in the sorted array.
Consider edge cases like duplicate elements or negative values.
Time complexity can be optimized to O(n) using a HashSet to store visited nodes.
Round duration - 60 minutes
Round difficulty - Medium
I was interviewed for vcloud team so they asked me questions on Cloud, DSA etc.
You are provided with a linked list having 'N' nodes and an integer 'K'. Your task is to reverse the linked list in groups of size K. If the list is numbered fro...
Reverse a linked list in groups of size K
Iterate through the linked list in groups of size K
Reverse each group of nodes
Handle cases where the last group may have fewer than K nodes
Reverse a given stack of integers using recursion. You must accomplish this without utilizing extra space beyond the internal stack space used by recursion. Additionally, you ...
Reverse a given stack of integers using recursion without using extra space or loops.
Use recursion to pop all elements from the original stack and store them in function call stack
Once the stack is empty, push the elements back in reverse order using recursion
Use the top(), pop(), and push() methods to manipulate the stack
Cloud computing is the delivery of computing services over the internet, including storage, databases, networking, software, and more.
Cloud computing allows users to access resources on-demand without the need for physical infrastructure.
Examples of cloud computing services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.
Cloud computing offers scalability, flexibility, cost-effectiveness, ...
Cloud computing offers scalability, cost-efficiency, flexibility, and improved collaboration.
Scalability: Easily scale resources up or down based on demand without the need for physical infrastructure.
Cost-efficiency: Pay only for the resources you use, reducing upfront costs and maintenance expenses.
Flexibility: Access data and applications from anywhere with an internet connection, enabling remote work and collaborat...
Challenges of cloud computing include security concerns, data privacy issues, and potential downtime.
Security concerns: Data breaches and unauthorized access are major risks in cloud computing.
Data privacy issues: Ensuring compliance with regulations like GDPR can be challenging when data is stored in the cloud.
Potential downtime: Dependence on internet connectivity and cloud service providers can lead to downtime affe...
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
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