HFCL Limited Diploma Engineer Trainee - DET Interview Questions and Answers

Hackerrank Based coding round

Q1. Magic Square coding was requested
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Q2. Pattern matching of braces
Ans. 
Pattern matching of braces involves checking if the opening and closing braces are properly nested.
• Use a stack data structure to keep track of opening braces

• Iterate through the string and push opening braces onto the stack

• When a closing brace is encountered, pop from the stack and check if it matches the corresponding opening brace

• If stack is empty at the end and all braces are matched, the pattern is valid
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Q1. Pcap analysis and log analysis
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Q2. Feature testing
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Q1. Kubernetes and docker
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Q2. Amazon web service
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Q1. 100k feet over view
Ans. 
A high-level overview of a topic or project, typically focusing on key points and goals.
• Summarize the main objectives and goals of the project

• Highlight key milestones and deliverables

• Provide a brief overview of the team structure and roles

• Discuss any potential challenges or risks

• Outline the overall impact and benefits of the project
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Q2. Technical overview of all technology
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Q1. Difference between concepts
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Difference between concepts refers to the distinctions or contrasts between two or more ideas, theories, or principles.
• Concepts are abstract ideas or mental representations, while differences are variations or distinctions between them.

• Understanding the difference between concepts helps clarify their meanings and applications.

• For example, the difference between velocity and speed in physics is that velocity includes di
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Q2. Basic understanding of concepts and technology
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Q1. Salary expectation
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Q2. Why you want to jump
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Q1. PlSql based in depth
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Q1. Plsql development based indepth
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Q1. Technical knowledge based
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Q1. Indepth bgv based questions
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Q1. Profile discussion, job designation discussion, further opportunities discussion
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Q1. Network engineering questions Spectrum analyser, ITSM tool knowledge, hfc engineering network questions like network outage locating issue and isolating it.
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Discussing about troubleshooting process in NOC.

Q1. GPON, DWDM, Switch.
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Hacker rank test was given. 30 mcq and 1 coding test. Test duration is 1 hour. Core java and spring boot questions were covered.

Q1. Core Java, spring annotations, hashmap internal working, exception handling, working of rest controller, Java 8 features, code using streams api, multithreading concepts
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Q1. Microservice architecture, working of spring Mvc, communications between microservice, actuator, swagger, why microservice is implemented, spring vs spring boot, design patterns used, questions related to ...read more
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Q1. Basic concepts of VOIP and trunk configuration. Need to know ongoing voip trends in the market. Teams is budding platform and would be great to have Skype for business background
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Q1. Why do you want to join Tata?
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Sdwan, osi layer tcp ,udp,ip addressing,

Q1. SDWAN, ip addressing ,subnetting, osi modle
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