Pine Labs Customer Service Executive Interview Questions and Answers

How can resolve customer queries and patience control

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Q1. Customer support executive
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Q2. Customer services is important
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Q1. Phone pay helpline Customer service number**7477-**632*--740 Call me just now ©️☎️7️⃣4️⃣7️⃣7️⃣6️⃣3️⃣2️⃣7️⃣4️⃣0️⃣©️☎️
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Q2. Customer service number call Toll-free number 7477-***632----740-*©️📞7️⃣4️⃣7️⃣7️⃣6️⃣3️⃣2️⃣7️⃣4️⃣0️⃣📞©️
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Q3. Phone pay helpline Customer service number call Toll-free***/*7477***632*--740***Call me just now ©️📞7️⃣4️⃣7️⃣7️⃣6️⃣3️⃣2️⃣7️⃣4️⃣0️⃣☎️
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Q4. Helpline the Toll-free castomer service number XXXXX***-©️☎️7️⃣4️⃣7️⃣7️⃣6️⃣3️⃣2️⃣7️⃣4️⃣0️⃣📞☎️
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Q5. Phone pay helpline Customer service number****XXXXX**-©️📞7️⃣4️⃣7️⃣7️⃣6️⃣3️⃣2️⃣7️⃣4️⃣0️⃣📞©️☎️
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Q6. Helpline the Toll-free castomer service number
Ans. 
The toll-free customer service number for helpline is 1-800-XXX-XXXX.
• Dial 1-800-XXX-XXXX to reach the helpline customer service.

• The helpline customer service is available 24/7.

• The customer service representatives are trained to assist with any queries or issues.

• The helpline customer service can provide information on products, services, and policies.

• The customer service can also assist with placing orders, tracking shi
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Q1. What is the reason to join our company?
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Q2. Why I'm hiring you? Sir
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Q3. If I hire you then then what is your first work?
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You should be familiar with core java features. Collections, converting one collection Array / Vector to other. Removing duplicates. Lambda chaining / Functional programming. Basic SQL - Joins, Aggregates etc.

Q1. Explain Architecture of applications you worked on. Justify use of components. System Design questions.
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1hr aptitude + coding

Round duration - 90 minutes
Round difficulty - Medium

Started with projects discussion and internships and moved forward with coding problems.
It started at around 6:00 PM and lasted for 90 minutes approximately
The interviewer was very cool, he even gave me some tips on improving myself further at the end of the interview.

Q1. 
Longest Substring with At Most K Distinct Characters
Given a string S of length N and an integer K, find the length of the longest substring that contains at most K distinct characters.
Input:
The first...read more
Ans. 
Find the length of the longest substring with at most K distinct characters in a given string.
• Use a sliding window approach to keep track of the characters and their counts within the window.

• Maintain a hashmap to store the characters and their frequencies.

• Update the window size and characters count as you iterate through the string.

• Return the maximum window size encountered for each test case.
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Q2. 
Maximum Frequency Number Problem Statement
Given an array of integers with numbers in random order, write a program to find and return the number which appears the most frequently in the array.
If multip...read more
Ans. 
Find the number with the maximum frequency in an array of integers.
• Iterate through the array and keep track of the frequency of each number using a hashmap.

• Find the number with the maximum frequency and return it.

• If multiple elements have the same maximum frequency, return the one that appears first.
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Q3. 
Ninja and Bombs Problem Statement
Ninja wants to travel from his house to his best friend's house. The locations of the houses are on a 2D coordinate plane, where Ninja's house is located at the origin (0...read more
Ans. 
Determine if Ninja can reach his friend's house with even x-coordinate without using modulus operator.
• Check if the x-coordinate is even or odd by using bitwise AND operation with 1.

• Return 1 if x-coordinate is even, else return 0.

• Handle multiple test cases by iterating through each input.
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Round duration - 60 minutes
Round difficulty - Easy

I was asked a coding question then, a system design question and some basic operating systems and oops questions

Q1. 
Find Duplicates in an Array
Given an array ARR of size 'N', where each integer is in the range from 0 to N - 1, identify all elements that appear more than once.
Return the duplicate elements in any orde...read more
Ans. 
Find duplicates in an array of integers within a specified range.
• Iterate through the array and keep track of the count of each element using a hashmap.

• Return elements with count greater than 1 as duplicates.

• Time complexity can be optimized to O(N) using a set to store seen elements.
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Q2. Can you design a Google Search Engine?
Ans. 
Designing a Google Search Engine involves creating a web crawler, indexing system, and ranking algorithm.
• Develop a web crawler to discover and retrieve web pages.

• Implement an indexing system to store and organize the content of web pages.

• Design a ranking algorithm to determine the relevance of search results.

• Include features like autocomplete, spell check, and personalized search results.

• Optimize for speed and scalabil...read more
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