XFINITY Interview Questions and Answers

Q1. It was a online coding round with one question related to a medium hard binary search question..
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Q2. The second question was bit ambiguous question involving a tree, where we were asked to add a tree child and subchild in the form a a directory and subdirectory
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Q1. Asked about work experience
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Q1. Explain the architecture of Kubernetes
Ans. 
Kubernetes is a container orchestration platform that manages and automates the deployment, scaling, and management of containerized applications.
• Kubernetes uses a master-slave architecture with a control plane and worker nodes.

• The control plane manages the overall state of the cluster and schedules workloads to the worker nodes.

• Worker nodes run the containers and communicate with the control plane to receive instructi...read more
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Q2. Give case study scenario where you implemented a app through any cloud provider (I preferred with azure)
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Q1. Explain the garbage collection process in java
Ans. 
Garbage collection is an automatic process of freeing up memory by removing unused objects.
• Java uses a mark-and-sweep algorithm for garbage collection

• Objects that are no longer referenced are marked for deletion

• The garbage collector runs periodically to remove the marked objects

• Finalize() method can be used to perform cleanup operations before an object is deleted
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Q2. Explain how did you implemented CI CD integration through Jenkins
Ans. 
Implemented CI/CD integration through Jenkins using pipeline as code approach
• Created a Jenkins pipeline job and defined stages for build, test, and deploy

• Integrated source code management tool like Git with Jenkins

• Used Jenkins plugins like Maven, Docker, and Kubernetes for building, packaging, and deploying the application

• Configured Jenkins to trigger the pipeline on every code commit or merge to the main branch

• Enabled...read more
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Q3. Describe how Azure hosted AKS works
Ans. 
Azure hosted AKS is a managed Kubernetes service that simplifies deployment and management of containerized applications.
• AKS stands for Azure Kubernetes Service

• AKS is a fully managed Kubernetes container orchestration service

• AKS automates the deployment, scaling, and management of containerized applications

• AKS integrates with other Azure services such as Azure Active Directory, Azure Monitor, and Azure Container Regist
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Questions were asked

Dsa dp, graphs and many more questions from arrays and linked list were asked

Fibonacci series coding q

Q1. Sql basics ,oops concepts
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Q2. Projects and other stuff
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A Hacker rank test was trigerred

Q1. Reverse a string
Ans. 
Reverse a given string
• Use a loop to iterate through the characters of the string

• Swap the characters from start to end of the string

• Repeat until the entire string is reversed
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Q2. Move zeros in an array
Ans. 
Move all zeros to the end of an array of strings
• Iterate through the array and keep track of the index to place non-zero elements

• After iterating, fill the remaining indices with zeros
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Q1. Tell me about yourself?
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Q2. Explain your role in your current project and how you handled your customer in problematic situation?
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2 Coding Questions. Easy- medium level questions.

Q1. 1. Program to find a perfect Number 2. Sql query on joins
Ans. 
Program to find a perfect number and SQL query on joins.
• A perfect number is a positive integer that is equal to the sum of its proper divisors.

• To find a perfect number, iterate through all numbers and check if the sum of its divisors is equal to the number itself.

• SQL joins are used to combine data from two or more tables based on a related column.

• Common types of joins include inner join, left join, right join, and full
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