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RingCentral Senior Software Engineer Interview Questions and Answers
RingCentral Senior Software Engineer Interview Experiences
3 interviews found
Zeel Shah
(2 Questions)
- Q1. What is content security Policy
- Ans.
Content Security Policy (CSP) is a security standard that helps prevent cross-site scripting (XSS) attacks by allowing website owners to control which resources can be loaded on their site.
CSP is implemented using an HTTP header that specifies approved sources of content such as scripts, stylesheets, images, fonts, and more.
It helps protect against XSS attacks by restricting the sources from which certain types of cont...
- Q2. React question to have directory sturcture listing
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in Aug 2024. There was 1 interview round.
[1] a^2 + b^2 = x^2 , given x find a and b. Example x = 100, we have to return [6,8]
[2] rotate a square matrix by 90 degrees
Interview Preparation Tips
Cloud integration and application integration
Top trending discussions
Interview questions from similar companies
I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.
(4 Questions)
- Q1. Find longest palindromic substring in a given string.
- Ans.
Use dynamic programming to find the longest palindromic substring in a given string.
Iterate through the string and expand around each character to find palindromes.
Store the length of the longest palindrome found so far.
Return the substring based on the start and end indices of the longest palindrome.
- Q2. How to serialize and deserialise a tree
- Ans.
To serialize and deserialize a tree, use a recursive approach to traverse the tree and store the data in a suitable format.
Use pre-order traversal to serialize the tree by storing the node values in a list or string.
For deserialization, reconstruct the tree by recursively building nodes from the serialized data.
Consider using JSON or XML format for serialization to easily store and retrieve tree structure.
- Q3. Find if a given regex (containing ., * and lower case english chars) matches a given string.
- Ans.
Use regex library to match given regex with string.
Use a regex library like re in Python to match the given regex with the string.
Check if the regex matches the string using the library functions.
Handle cases where the regex contains special characters like . and * appropriately.
- Q4. Explain about throttling and implement throttle function.
- Ans.
Throttling is a technique used to control the rate of requests sent to a server.
Throttling helps prevent server overload by limiting the number of requests processed at a time.
Implementing a throttle function involves setting a maximum request rate and delaying excess requests.
Example: Implementing a throttle function in a web application to limit the number of API calls made to a third-party service.
Example: Throttlin...
(4 Questions)
- Q1. Find squares of elements in a sorted array and return the sorted response.
- Ans.
Sort the squares of elements in a sorted array and return the sorted response.
Iterate through the array and square each element.
Store the squared values in a new array.
Sort the new array and return it.
- Q2. Write a short promise example and implement your own promise
- Ans.
A promise is a commitment to do something in the future, typically used for asynchronous operations in JavaScript.
Promises are used to handle asynchronous operations in JavaScript.
They represent a value that may be available now, in the future, or never.
Promises have three states: pending, fulfilled, or rejected.
Example: new Promise((resolve, reject) => { setTimeout(() => resolve('Done!'), 1000); });
- Q3. Explain event loop, what are different types of queues in event loop
- Ans.
Event loop is a mechanism that allows for asynchronous execution of code by managing the order of events in a single thread.
Event loop continuously checks the call stack for any functions that need to be executed, and processes them in a non-blocking manner.
Different types of queues in event loop include microtask queue (Promise callbacks), macrotask queue (setTimeout, setInterval callbacks), and animation frame queue
- Q4. What is virtual DOM and why its faster
- Ans.
Virtual DOM is a lightweight copy of the actual DOM, used to improve performance by minimizing direct manipulation of the real DOM.
Virtual DOM is a concept used in frameworks like React to optimize rendering performance.
Changes are first made to the virtual DOM, which is then compared to the real DOM to identify the minimal updates needed.
This approach reduces the number of actual DOM manipulations, resulting in faster...
Interview Preparation Tips
- React.Js
- Javascript
- DSA
Skills evaluated in this interview
(1 Question)
- Q1. Write polyfill for array map
Selected
I was interviewed in Jul 2024.
(4 Questions)
- Q1. Java 8 and related programming questions springboot microservices details about project
- Q2. Kafka questions and use case
- Q3. API springboot application development
- Q4. Ci cd and cloud
(1 Question)
- Q1. Hr related question
Selected
I applied via Company Website
A code to identify errors and write Junit. Optimise the code as well.
(2 Questions)
- Q1. Stacks using queue
- Ans.
Implementing a stack using two queues
Use two queues to simulate a stack
Push operation: Enqueue the element to queue 1
Pop operation: Dequeue all elements from queue 1 to queue 2, dequeue the last element from queue 1, then swap the queues
Top operation: Return the front element of queue 1
Example: Push 1, 2, 3 - Queue 1: [1, 2, 3], Queue 2: []
Example: Pop - Queue 1: [1, 2], Queue 2: [3]
- Q2. BFS and Knapsack problem, previous project experience
Interview Preparation Tips
Skills evaluated in this interview
Senior Software Engineer Interview Questions & Answers
Ice Mortgage Technology
Anonymous
posted on 3 Mar 2024
Selected
I applied via Approached by Company
(2 Questions)
- Q1. Explain the technology stack you have been working on.
- Ans.
I have been working on a technology stack that includes Java, Spring Boot, Angular, and MySQL.
Java programming language for backend development
Spring Boot framework for building and deploying Java applications
Angular framework for frontend development
MySQL database for data storage and retrieval
- Q2. Deep dive into the .Net framework and its use in developing microservices using Web APIs
- Ans.
The .Net framework is a powerful tool for developing microservices using Web APIs.
The .Net framework provides a set of libraries and tools for building scalable and reliable microservices.
Web APIs in .Net allow for easy communication between different services and clients.
Features like dependency injection and middleware in .Net make it easier to develop and maintain microservices.
Examples of popular frameworks for bui...
(2 Questions)
- Q1. Explain how you would troubleshoot a network bottleneck in your web API application hosted in a public cloud like Azure or AWS.
- Ans.
To troubleshoot a network bottleneck in a web API application hosted in a public cloud like Azure or AWS, one can analyze network traffic, monitor server performance, and optimize resource allocation.
Use network monitoring tools to analyze traffic patterns and identify potential bottlenecks.
Monitor server performance metrics such as CPU usage, memory usage, and disk I/O to pinpoint any resource constraints.
Optimize res...
- Q2. Explain the usage of Azure service fabric clusters
- Ans.
Azure Service Fabric clusters are used to deploy and manage microservices-based applications on Microsoft Azure.
Azure Service Fabric clusters provide a platform for deploying and managing scalable and reliable microservices.
They offer automatic scaling, rolling upgrades, and health monitoring for microservices.
Service Fabric clusters can be used to deploy stateless or stateful microservices.
They support multiple progra...
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.
Full stack question with java and angular and sql
Case study on project
Senior Software Engineer Interview Questions & Answers
Oracle Cerner
Anonymous
posted on 22 Feb 2024
Selected
I applied via Recruitment Consulltant and was interviewed in Jan 2024. There were 6 interview rounds.
(1 Question)
- Q1. 2 DSA questions
(1 Question)
- Q1. Half an hour of behavioral questions and 1 DSA question
(1 Question)
- Q1. One hour discussion of the work that I have done till now
(1 Question)
- Q1. 1 Hard DSA question
(1 Question)
- Q1. 1 Hard DSA question
(1 Question)
- Q1. Design round for HLD
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