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APL Metals Interview Questions and Answers
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Gulshan Kumar
I applied via Campus Placement
Interview Preparation Tips
Experience: They selected 10 students from our college from CS and IT .They are looking for guys with extra projects done during college .App development will be a bonus ,contribution to open source and competitive programming will help for shortlisting.
Some of my friends had research papers published and they too got selected.
Round: Test
Experience: Have to write code snippet for 4 questions in 45 minutes
1.Difference between hour hand and minute hand
2.longest palindromic sub string.
3.Product Array puzzle
4.Some question related to matrix
Tips: All question were from geeksforgeeks
So practice it well ..u will make through it
Round: Test
Experience: Long Discussion on projects
They will scan each and every line of your Resume ,so dont write bullshits..
I wrote about interest in AI and got screwed..Discussion on college projects and final year project.
Then asked me to design a snake and ladder game OOPS concepts
Told me to find sum of all elements of sub matrix..(hint pre-processing the matrix)
Asked me about sessions and cookies
Gave a query to write on database indexing (dont remember exactly)
Asked me the code of the difference between hour hand and minute hand and extended it wid the second hand
Asked me as how to implement a dictionary
asked about TRIES ,CODE SNIPPET ON THE SHARED DOCS
One of my friend was asked to implement (set) of STL
Tips: The interviewer was cool guy..helped me a lot always made me comfortable.Interact with them as much as possible
Round: Test
Experience: Wid the CTO of the company .
Started wid the projects again .ACID properties,Database transactions,Concurrency Control
Optimization in database.
Then he asked me to code a function
Given a hash function applied on letters of English words ,un-hash it.Took me 45 minutes to reach the solution ,he helped me a lot.
Asked me to write the code for diameter of a binary tree
Asked me write the code for Boolean Matrix
One of my friend was asked to a question in which there was a bug in a m*n matrix and we have to find the bug(hint dfs or bfs)
Tips: keep calm ,,just keep talking ad he will help u a lot...
Round: HR
Experience: This was the toughest round for me...I had cleared all the rounds but they rejected me in the HR round ,,,dont know where I screwed..Learn every thing of Zomato..
They offered me an internship and thereafter they would look to give a PPO ...!!!lets see what happens
Skills: Coding Skills And Knowledge On Data Structures
Duration: 3
College Name: NIT Srinagar
Interview Questionnaire
9 Questions
- Q1. Write a regex for email validation?
- Ans.
Regex for email validation
Start with a string of characters followed by @ symbol
Followed by a string of characters and a period
End with a string of characters with a length of 2-6 characters
Allow for optional subdomains separated by periods
Disallow special characters except for . and _ in username
- Q2. Parse the XML? and store the output in JSON. Discussed different approaches?
- Q3. Print prime numbers in a given range and optimize the solution?
- Ans.
Print prime numbers in a given range and optimize the solution.
Use Sieve of Eratosthenes algorithm to generate prime numbers efficiently
Start with a boolean array of size n+1, mark all as true
Loop through the array and mark all multiples of each prime as false
Print all the indexes that are still marked as true
- Q4. Puzzle – 25 horses – 5 lanes, find fastest 3 horses?
- Q5. Web related questions on Sessions and cookies?
- Q6. A lot of discussion on my resume, experience etc
- Q7. Find angle between hour hand and minute hand in clock if time is given? Write a program or pseudo code?
- Ans.
Find angle between hour and minute hand in a clock given the time.
Calculate the angle made by the hour hand with respect to 12 o'clock position
Calculate the angle made by the minute hand with respect to 12 o'clock position
Find the difference between the two angles and take the absolute value
If the angle is greater than 180 degrees, subtract it from 360 degrees to get the smaller angle
- Q8. A hash function was written to convert a string into a hash. Write a un-hash function to revert it(from hash to string)?
- Ans.
To un-hash a string, use a reverse algorithm to convert the hash back to the original string.
Create a reverse algorithm that takes the hash as input and outputs the original string
Use the same logic as the hash function but in reverse order
If the hash function used a specific algorithm, use the inverse of that algorithm to un-hash the string
- Q9. He discussed about expectations and role. Asked me if I have any questions. He said to me “yaha aana hai to marwani padegi. tyar ho”? I smiled and asked what are the work timings? He said 9-9 and I was kin...
Interview Preparation Tips
Skills: Web development, JSON, Algorithm
College Name: na
Motivation: Overall process was not very tough. But they have start up culture. People work their for 11-12 hours a day. Sometimes on Saturday as well. So people who are geeks or have nothing in life to do except their job can go and join
Skills evaluated in this interview
I applied via Naukri.com and was interviewed before May 2018. There were 5 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Questions are related to your past working experience and the position that you applied for Microwave Transmission related questions: What is Microwave and types What is fadind and it's resolution steps D...
- Q2. PDH-SDH related questions- Difference between PDH and sdh Frame structure of sdh High order and low order bytes and alarms related to bytes Alarms in sdh Ethernet over sdh What is GFP, ENCAPSULATION, VCAT,...
- Q3. Generally your current work related questions Why you want to change your job What is your expectations from new job Where you seeing your self after 5 year's Current salary and expectations
Interview Preparation Tips
Experience: Related to offer they are giving and related cross questions
General Tips: I had been interviewed with Huawei in 2016 and total 2 rounds was there for me. Questions I already had shared, go through it.
I got my offer letter after 1 month after HR discussion but please follow up with HR team once you get call for your selection
Skills: Ethernet over SDH, SDH, Microwave, Technical Knowledge(ML, Microwave, Communication, Presentation Skills
Duration: 1-3 Months
Interview Questionnaire
8 Questions
- Q1. Java
- Q2. Python
- Q3. Django
- Q4. Html
- Q5. Css
- Q6. JavaScript
- Q7. Sql
- Q8. Dbms
I applied via Campus Placement and was interviewed in Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Difference between Java and JavaScript?
- Ans.
Java is a general-purpose programming language while JavaScript is a scripting language used for web development.
Java is compiled while JavaScript is interpreted
Java is statically typed while JavaScript is dynamically typed
Java is used for developing desktop applications, web applications, and Android apps while JavaScript is used for web development
Java code runs on a virtual machine while JavaScript code runs on a we...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Apr 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Mostly hr questions and software questions
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Oops concept DBMS Cloud computing Other questions related to redume
I applied via Campus Placement and was interviewed before Mar 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is the most challenging situation you have been through in your career?
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in Feb 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. About my experience and what kind of job i can handle etc
Interview Preparation Tips
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. How many years of experience in Technical recruitment?
- Q2. What are the roles and responsibilities
- Q3. Do you have experience in Rpo method
Interview Preparation Tips
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