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posted on 19 Oct 2022
I applied via Naukri.com and was interviewed before Oct 2021. There were 4 interview rounds.
VPN stands for Virtual Private Network. It is used to create a secure and encrypted connection over a public network.
VPN allows users to securely access a private network over the internet.
It provides privacy and anonymity by masking the user's IP address and encrypting their internet traffic.
VPN is commonly used to access company networks remotely, protect sensitive data, bypass censorship or geo-restrictions, and enh...
We use ServiceNow as our ticketing tool.
ServiceNow is a popular ticketing tool used by many organizations.
It provides a centralized platform for managing IT service requests and incidents.
ServiceNow offers features like ticket creation, assignment, tracking, and resolution.
It allows for efficient communication between IT support engineers and end-users.
ServiceNow also provides reporting and analytics capabilities for p...
Answering questions related to troubleshooting BSOD, installing OS, network types, cloud, and S3 bucket.
To troubleshoot BSOD, check for hardware issues, update drivers, and run diagnostic tools.
Before installing OS, check hardware compatibility, backup important data, and ensure proper boot order.
Network types include LAN, WAN, MAN, PAN, WLAN, and SAN.
Cloud is a network of remote servers used to store, manage, and proc...
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Find the pair element from the array
Iterate through the array and use a hashmap to store elements and their counts
Check if the current element's complement exists in the hashmap
Return the pair if found, otherwise return null
I applied via Recruitment Consultant and was interviewed in May 2021. There were 4 interview rounds.
An immutable class is a class whose instances cannot be modified after creation.
Make all fields private and final
Don't provide any setter methods
Ensure that any mutable objects passed to the constructor are defensively copied
Make the class final so that it cannot be subclassed
Singleton pattern ensures only one instance of a class is created and provides a global point of access to it.
Create a private constructor to prevent direct instantiation of the class.
Create a private static instance of the class.
Create a public static method to access the instance, and create the instance if it doesn't exist.
Ensure thread safety by using synchronized keyword or double-checked locking.
Vector is synchronized and ArrayList is not. Vector is thread-safe and ArrayList is not.
Vector is a legacy class and ArrayList is a part of the Java Collection Framework.
Vector is synchronized which means only one thread can access it at a time, while ArrayList is not.
Vector is thread-safe which means it can be used in a multi-threaded environment, while ArrayList is not.
Vector is slower than ArrayList because of synch...
Create Linked List without using internal library and provide add, delete, find functionality.
Create a Node class with data and next pointer
Create a LinkedList class with head pointer and methods to add, delete, and find nodes
Use a loop to traverse the list and perform operations
Handle edge cases such as adding to an empty list or deleting the head node
The current system follows a microservices architecture.
The system is divided into multiple independent services.
Each service has its own database and communicates with other services through APIs.
The architecture allows for scalability and flexibility.
Examples of microservices used in the system include user authentication, payment processing, and inventory management.
Find the total no of islands in a 2D matrix.
Use DFS or BFS to traverse the matrix.
Mark visited cells to avoid repetition.
Count the number of islands found.
Loop detection in a linked list.
Use two pointers, one moving at twice the speed of the other.
If there is a loop, the faster pointer will eventually catch up to the slower one.
If there is no loop, the faster pointer will reach the end of the list.
I applied via Recruitment Consultant and was interviewed before Jul 2020. There was 1 interview round.
I was interviewed in Oct 2016.
I applied via Campus Placement
Boundary traversal of a tree is the process of visiting the nodes on the boundary of a tree in a specific order.
The boundary traversal can be done in three steps: left boundary, leaf nodes, and right boundary.
For the left boundary, start from the root and traverse down the left side of the tree until reaching a leaf node.
For the leaf nodes, perform an inorder traversal to visit all the leaf nodes of the tree.
For the ri...
Find the nearest greater value of a given value in a Binary Search Tree (BST).
Start from the root node and compare the given value with the current node's value.
If the given value is less than the current node's value, move to the left subtree.
If the given value is greater than the current node's value, move to the right subtree.
Keep track of the closest greater value encountered while traversing the tree.
Return the cl
Given an infinite staircase with a broken kth step, find the maximum height we can reach in n rounds of jumping i steps.
We can start by jumping the maximum number of steps in each round until we reach the broken step.
After reaching the broken step, we can discard the i steps that would land us on the broken step and jump the remaining steps.
We can continue this pattern until we reach the maximum height we can reach wit
Function to check if a string of parenthesis is balanced
Use a stack to keep track of opening parenthesis
If a closing parenthesis is encountered, pop from stack and check if it matches
If stack is empty and a closing parenthesis is encountered, return False
If all parenthesis are matched and stack is empty, return True
Count the occurrences of words in a paragraph.
Split the paragraph into words using whitespace as a delimiter.
Create a dictionary to store the count of each word.
Iterate through the words and increment the count in the dictionary.
Return the dictionary with the word counts.
Find common elements out of two sorted array
Use two pointers to traverse both arrays simultaneously
Compare elements at each pointer and move the pointer of the smaller element
If elements are equal, add to common elements list and move both pointers
Stop when either pointer reaches end of array
Convert a Binary Search Tree to a Doubly Linked List.
Create a DLL node class with left, right, and data fields.
Traverse the BST in-order and add each node to the DLL.
Adjust the left and right pointers of each node to create the DLL.
Return the head of the DLL.
The task is to fill the 'next' field of each node in a binary tree to point to the next node at the same level.
Use a level order traversal to process the tree nodes.
Maintain a queue to store the nodes at each level.
For each node, set its 'next' field to the next node in the queue.
If a node is the last node at its level, set its 'next' field to NULL.
To find anagrams of a given word in a dictionary, use a hash table to store sorted versions of each word as keys and their corresponding original words as values.
Create a hash table to store the anagrams
Iterate through each word in the dictionary
Sort the characters of the word and use it as a key in the hash table
If the key already exists, add the word to the list of values for that key
Print the list of values for the
Suggest a data structure for efficient search of a string in 10 files and print line number and file if string appears more than once.
Use a hash table to store the file name and line number of each occurrence of the string.
Iterate through each file and for each line, check if the string is present and update the hash table accordingly.
Print the hash table entries for the string.
Amazon is the right place for me because of its innovative culture, vast resources, and opportunities for growth.
Amazon's innovative culture aligns with my passion for pushing boundaries and finding creative solutions.
The company's vast resources provide the necessary tools and support to develop and deliver high-quality software.
Amazon offers numerous opportunities for growth and career advancement, allowing me to con...
I was interviewed before May 2016.
I am a passionate software engineer with experience in developing web applications and a strong background in computer science.
Experienced in developing web applications using technologies such as HTML, CSS, JavaScript, and React
Strong background in computer science with knowledge of data structures and algorithms
Proficient in programming languages such as Java, Python, and C++
Familiar with Agile development methodolog
Flipkart is a leading e-commerce platform in India with a strong focus on technology and innovation.
Flipkart offers a challenging and dynamic work environment for software engineers.
The company has a strong reputation for investing in technology and innovation.
Flipkart has a large user base and offers opportunities to work on a variety of projects.
The company has a strong focus on customer satisfaction and user experie...
Yes, I am comfortable with reallocating as needed.
I am flexible and adaptable to changing circumstances.
I have experience working in dynamic environments where priorities can shift.
I am willing to take on new challenges and responsibilities as required.
I have a strong technical background, excellent problem-solving skills, and a proven track record of delivering high-quality software.
Extensive experience in software development, including proficiency in multiple programming languages such as Java, Python, and C++
Strong problem-solving skills demonstrated through successful completion of complex projects
Proven track record of delivering high-quality software on time a...
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Catalogue Specialist
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Content Writer
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Content Editor
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