Peoplelink Unified Communications Executive Trainee Interview Questions and Answers

Q1. Tell me about a time you optimize backend performance
Ans. 
I improved backend performance by optimizing database queries and implementing caching strategies, resulting in faster response times.
• Identified slow database queries using profiling tools, such as EXPLAIN in SQL.

• Refactored queries to reduce complexity and improve execution time, e.g., replacing subqueries with JOINs.

• Implemented caching mechanisms using Redis to store frequently accessed data, reducing database load.

• Mo...read more
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Q2. Describe a challenging backend issue you faced and how you resolved it
Ans. 
Resolved a critical performance bottleneck in a microservices architecture affecting response times and user experience.
• Identified the issue through monitoring tools like New Relic, which showed high latency in specific service calls.

• Conducted a thorough code review and discovered inefficient database queries causing delays.

• Implemented caching strategies using Redis to store frequently accessed data, reducing database ...read more
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Question on tree and hashmap

Q1. Oops concept , Android basics like fragment , alarm manager etc
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Q1. Behaviour question , why Samsung, conflicts with team etc
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Q1. Market share product knowledge
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Q2. Asking target set
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Q1. As I'm a fresher with EEE background interview was about my subjects i have studied in my college
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Q1. Why samsung?Would you be able to work under pressure?
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Q2. How long will you stay in samsung?
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Q1. Sap and crm usage
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Q2. Behavioural and aptitude assessment
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Q1. No question from hr and team
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Q1. How to improve buisness
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Q1. Salary and and up and down
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