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Signzy Technologies System Administrator Interview Questions and Answers

Updated 29 Sep 2021

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Oops concepts and projects
  • Q2. Collections, multithreading

Interview Preparation Tips

Interview preparation tips for other job seekers - be prepared for interview on your skills and projects
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Coding question
  • Q2. Asked to make some component in react
Round 2 - Technical 

(2 Questions)

  • Q1. Javascript questions
  • Q2. Normal js questions

Interview Questionnaire 

32 Questions

  • Q1. Discussion on the rectangular board question asked in prev round
  • Q2. How will you implement a shuffle function for a playlist of songs
  • Ans. 

    Implementing a shuffle function for a playlist of songs

    • Create a new empty playlist

    • Randomly select a song from the original playlist and add it to the new playlist

    • Remove the selected song from the original playlist

    • Repeat until all songs have been added to the new playlist

    • Return the new shuffled playlist

  • Answered by AI
  • Q3. What is memory leak?
  • Ans. 

    Memory leak is a situation where a program fails to release memory it no longer needs.

    • Memory leaks can cause a program to consume more and more memory over time, eventually leading to crashes or other issues.

    • Memory leaks can be caused by programming errors such as not freeing memory after it is no longer needed.

    • Tools like valgrind can be used to detect memory leaks in C and C++ programs.

    • Examples of memory leaks include...

  • Answered by AI
  • Q4. What is the problem with arrays?
  • Ans. 

    Arrays have fixed size and can lead to memory wastage and performance issues.

    • Arrays have a fixed size and cannot be resized dynamically.

    • Inserting or deleting elements in an array can be time-consuming.

    • Arrays can lead to memory wastage if they are not fully utilized.

    • Arrays can cause performance issues if they are too large and need to be traversed frequently.

    • Arrays can also be prone to buffer overflow attacks.

    • Example: A...

  • Answered by AI
  • Q5. Write a function in javascript to hide text on mouse click
  • Ans. 

    Function to hide text on mouse click in JavaScript

    • Create a function that takes an element as input

    • Add an event listener to the element for a mouse click

    • Toggle the element's display property between 'none' and its original value

  • Answered by AI
  • Q6. A unsorted array was given and a number x.find out the two elements whose sum is equal to x
  • Ans. 

    Find two elements in an unsorted array whose sum is equal to a given number x.

    • Use a hash table to store the difference between x and each element in the array.

    • Iterate through the array and check if the current element is in the hash table.

    • Return the pair of elements that add up to x.

  • Answered by AI
  • Q7. More questions on basic OS concepts related to storage, memory
  • Q8. Puzzle : -----/
  • Q9. What is BST ?
  • Ans. 

    BST stands for Binary Search Tree, a data structure used for efficient searching and sorting operations.

    • BST is a tree-like data structure where each node has at most two children.

    • The left child of a node contains a value less than the parent node, while the right child contains a value greater than the parent node.

    • BST allows for efficient searching and sorting operations with a time complexity of O(log n).

    • Examples of a...

  • Answered by AI
  • Q10. How many BSTs are possible with two nodes and three nodes?
  • Ans. 

    Number of possible BSTs with 2 and 3 nodes.

    • For 2 nodes, only 2 BSTs are possible.

    • For 3 nodes, 5 BSTs are possible.

    • Number of BSTs can be calculated using Catalan numbers formula.

    • Catalan(2) = 2, Catalan(3) = 5.

  • Answered by AI
  • Q11. How many trees are possible with two and three nodes?
  • Ans. 

    Answering the question about possible trees with two and three nodes.

    • For two nodes, there is only one possible tree.

    • For three nodes, there are three possible trees.

    • The formula for calculating the number of possible trees with n nodes is (2n-3)!!.

    • The double exclamation mark represents the double factorial function.

    • The double factorial function is defined as n!! = n(n-2)(n-4)...(1 or 2).

  • Answered by AI
  • Q12. Puzzle : 100 people are standing in a circle .each one is allowed to shoot a person infront of him and he hands the gun to the next to next person for e.g 1st person kills 2nd and hands gun to 3rd .This c...
  • Q13. What is indexing? Why it is used?
  • Q14. What are B+ trees?what is the advantage?
  • Ans. 

    B+ trees are balanced trees used for indexing and searching large amounts of data.

    • B+ trees are similar to binary search trees but have multiple keys per node.

    • They are commonly used in databases and file systems.

    • B+ trees have a high fanout, reducing the number of disk accesses required for searching.

    • They are also self-balancing, ensuring efficient performance even with large amounts of data.

    • Example: In a database, a B+ ...

  • Answered by AI
  • Q15. Any questions you want to ask?
  • Ans. 

    Yes, I have a few questions.

    • Can you tell me more about the team I'll be working with?

    • What is the company culture like?

    • What are the biggest challenges the team is currently facing?

    • Can you walk me through the development process for a typical project?

    • What opportunities are there for professional growth and development?

  • Answered by AI
  • Q16. Asked me about the skills i have mentioned in my resume
  • Q17. Which data structure i like?
  • Ans. 

    I prefer hash tables for their constant time lookup and insertion.

    • Hash tables are efficient for storing and retrieving data.

    • They have constant time complexity for both insertion and lookup.

    • They can be implemented using arrays or linked lists.

    • Examples include Python's dictionary and Java's HashMap.

  • Answered by AI
  • Q18. Can you implement a stack using queue
  • Ans. 

    Yes, we can implement a stack using two queues.

    • Push operation: Enqueue the element to the first queue.

    • Pop operation: Dequeue all elements from the first queue and enqueue them to the second queue until the last element. Dequeue and return the last element. Swap the names of the queues.

    • Top operation: Same as pop operation but don't dequeue the last element.

    • Example: Push 1, 2, 3. Queue 1: 1 2 3. Queue 2: empty. Pop opera...

  • Answered by AI
  • Q19. Two arrays of arrival time of trains and departure time of trains were given. find the minimum no of platforms require so that no collision occurs
  • Ans. 

    Find minimum no of platforms required to avoid collision between trains based on their arrival and departure times.

    • Sort both arrays in ascending order

    • Initialize platform count and max count to 1

    • Loop through both arrays and compare arrival and departure times

    • If arrival time is less than or equal to departure time, increment platform count

    • Else, decrement platform count

    • Update max count if platform count is greater than ma

  • Answered by AI
  • Q20. What is JVM ? Difference between JVM and compiler
  • Ans. 

    JVM stands for Java Virtual Machine. It is an abstract machine that provides a runtime environment for Java programs.

    • JVM is responsible for interpreting the compiled Java code and executing it.

    • It provides platform independence by converting bytecode into machine-specific code.

    • JVM has various components like class loader, bytecode verifier, and execution engine.

    • Compiler converts source code into bytecode, while JVM exec...

  • Answered by AI
  • Q21. He asked me to write a html code for a page design he gave
  • Q22. He asked me to write a query for a relational schema and problem statement given by him
  • Q23. Tell me about Yourself
  • Ans. 

    I am a software engineer with experience in developing web applications and a passion for learning new technologies.

    • Experienced in developing web applications using technologies such as Java, Spring, and Angular

    • Passionate about learning new technologies and keeping up with industry trends

    • Strong problem-solving skills and ability to work in a team environment

    • Completed a Bachelor's degree in Computer Science from XYZ Uni

  • Answered by AI
  • Q24. She asked me if i was nervous
  • Q25. What do i know about PayTM ?
  • Ans. 

    PayTM is an Indian e-commerce payment system and digital wallet company.

    • PayTM was founded in 2010 by Vijay Shekhar Sharma.

    • It started as a mobile recharge and bill payment platform.

    • PayTM has expanded to offer services like online shopping, movie ticket booking, and travel bookings.

    • It also offers a digital wallet that can be used to pay for various services and products.

    • PayTM has over 350 million registered users and is ...

  • Answered by AI
  • Q26. Any feature i would like to add in PayTM app?
  • Ans. 

    I would like to add a feature for splitting bills among friends.

    • The feature would allow users to split bills for movies, dinners, etc.

    • Users can select friends from their contact list and split the bill equally or unequally.

    • The app would send a notification to the selected friends to pay their share.

    • The feature would make it easier for users to split expenses and avoid awkward conversations.

    • It would also encourage more

  • Answered by AI
  • Q27. What is my favourite app and any improvements in it which i want to implement?
  • Ans. 

    My favourite app is Spotify. I would like to see improvements in the algorithm for personalized playlists.

    • Improved algorithm for personalized playlists

    • Better integration with social media platforms

    • Option to create collaborative playlists with friends

  • Answered by AI
  • Q28. She asked me about my school and which school i like the most and why?
  • Q29. She asked me about my family
  • Q30. What is my favourite subject?
  • Ans. 

    My favourite subject is Computer Science.

    • I enjoy programming and problem-solving.

    • I find algorithms and data structures fascinating.

    • I am interested in artificial intelligence and machine learning.

    • I like learning about new technologies and keeping up with industry trends.

  • Answered by AI
  • Q31. Have i ever been to delhi?
  • Q32. Why do I choose NIT Hamirpur? what do i like about Hamirpur?
  • Ans. 

    I choose NIT Hamirpur because of its excellent academic reputation and beautiful campus.

    • NIT Hamirpur has a strong focus on academics and research, which aligns with my career goals.

    • The campus is located in a serene and picturesque location, which provides a conducive environment for learning.

    • The faculty members are highly experienced and knowledgeable, and are always willing to help students.

    • The college has state-of-th...

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: General aptitude was easy.It was of 30 mins.
Next technical aptitude and coding questions were of 50 mins duration.
Technical aptitude questions were from OS,C,C++,DBMS.Questions were based on basic concepts.
There were 3 coding questions.
1.A girl eat fish of exact length of 10.She can cut the fish to get the desired length.An array of lengths of fish and maximum possible cuts allowed were given.Find out the max number of fish the girl can eat.
2. A 2-D rectangular board which contains sand grains : 'o' ,obstacles: 'x' and empty cells : '.' .The board is kept vertical. The sand grain can move down into and empty cell but it cannot cross obstacle. find out the final position of all sand grains in the board.
3.It was question on subsequence .
Tips: Just keep your basic concepts clear. Practice questions on strings,dynamic programming and recursion.Go through Geeksforgeeks .It'll help you a lot.
Duration: 80mins minutes
Total Questions: 50

Round: Technical Interview
Experience: The interviewer was very calm and polite. He was giving me hints and enough time to solve the questions.
Tips: Keep talking with the interviewer .Discuss your approach. Do take hints they give you.

Round: Technical Interview
Experience: I was stuck in one or two questions but they keep giving me hints. Interviewers were very nice. They were asking me the approach for each question. They were very cool.

Tips: Stay calm and go ahead. Apply whatever basic knowledge you have . keep asking doubts for the questions if you have any.

Round: Technical Interview
Experience: He asked me about my projects. What was my role. It was an hour long round. Enough time was given to solve each question.I was asked to write code with minimum complexity.
Tips: Keep discussing the questions. Try to reach to the best approach .keep smiling.Never fake your resume.

Round: HR Interview
Experience: The HR was very polite.I was a bit nervous at first but then I was relaxed.
Tips: Just be yourself .You are almost done when you are selected for HR. :) Keep Smiling and be confident about what ever you say.

General Tips: Be confident and have clear basic concepts of all subjects.
Skill Tips: Practise as many questions as you can on geeksforgeeks.
Skills: Coding skills, Logical skills, Aptitude, Basic Knowledge of DBMS
College Name: NIT Hamirpur
Motivation: My recent project work related to E-commerce and the reputation and ecstatic growth of the company in recent months.
Funny Moments: after one of the technical round , interviewer asked me if i had any questions about the company.I asked them what kind of rewards will be given .. do you guys go for trips and get any free coupons :P

Skills evaluated in this interview

Interview Questionnaire 

7 Questions

  • Q1. Given an array find the number of conitnuous sequences having equal number of 0's and 1's
  • Ans. 

    Count the number of continuous sequences with equal number of 0's and 1's in an array.

    • Iterate through the array and keep track of the count of 0's and 1's encountered so far.

    • Store the difference between the counts in a hash table and increment the count for that difference.

    • If the difference is already present in the hash table, add the count to the existing value.

    • Return the sum of all values in the hash table.

  • Answered by AI
  • Q2. Number of substrngs which are palindrome
  • Ans. 

    Count the number of palindromic substrings in a given string.

    • A substring is a contiguous sequence of characters within a string.

    • A palindrome is a string that reads the same backward as forward.

    • Use dynamic programming to count all palindromic substrings.

    • Time complexity can be reduced to O(n^2) using Manacher's algorithm.

  • Answered by AI
  • Q3. Longest Palindrom in a string in O(n)
  • Ans. 

    Find the longest palindrome in a given string in linear time complexity.

    • Use Manacher's algorithm to find the longest palindrome in a string in O(n) time complexity.

    • The algorithm involves preprocessing the string to add special characters to handle even and odd length palindromes.

    • Then, it uses a combination of dynamic programming and symmetry properties to find the longest palindrome.

    • For example, in the string 'babad',

  • Answered by AI
  • Q4. Find the value of pie
  • Ans. 

    The value of pie is a mathematical constant approximately equal to 3.14159.

    • Pie is the ratio of the circumference of a circle to its diameter.

    • It is an irrational number, meaning it cannot be expressed as a finite decimal or fraction.

    • Pie is commonly used in geometry and trigonometry calculations.

    • The value of pie is often approximated as 3.14 or 22/7.

  • Answered by AI
  • Q5. Project discussion
  • Q6. Tell me about yourself
  • Ans. 

    I am a passionate software engineer with experience in developing web applications using various technologies.

    • Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

    • Proficient in backend development with Node.js and databases like MongoDB and MySQL

    • Familiar with version control systems like Git and deployment tools like Docker

    • Strong problem-solving skills and ability

  • Answered by AI
  • Q7. Will u be able to fit in the company ?
  • Ans. 

    Yes, I believe I will be able to fit in the company based on my experience, skills, and values.

    • I have experience working in diverse teams and adapting to different work cultures.

    • I share the company's values and vision, which align with my own.

    • I am eager to learn and contribute to the team, fostering a positive work environment.

    • I have strong communication skills, which are essential for collaboration and teamwork.

  • Answered by AI

Interview Preparation Tips

Round: Test
Duration: 20 minutes
Total Questions: 20

Round: Technical Interview
Experience: Nice
Tips: Cormen
Programming contests
Interviewbit.com
geeksforgeeks.com

Round: Technical Interview
Experience: niice
Tips: Cormen
Programming contests
Interviewbit.com
geeksforgeeks.com

Round: Technical Interview
Experience: nice
Tips: do some projects

Round: HR Interview
Experience: nice
Tips: read on google on how to answer such questions

General Tips: geeksforgeeks.com
Skill Tips: Cormen
Programming contests
Interviewbit.com
geeksforgeeks.com
Skills: c , algorithms , data structures
College Name: Delhi Technological University, Delhi

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Oct 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Previous work experiences related questions
Round 3 - One-on-one 

(4 Questions)

  • Q1. Situation based question
  • Q2. How to handle work pressure in difficult scenarios
  • Ans. 

    To handle work pressure in difficult scenarios, it is important to prioritize tasks, communicate effectively, take breaks, and seek support when needed.

    • Prioritize tasks based on urgency and importance

    • Communicate with team members and supervisors about challenges and seek help if needed

    • Take short breaks to recharge and refocus

    • Seek support from colleagues, mentors, or mental health professionals if feeling overwhelmed

  • Answered by AI
  • Q3. How to prioritise work
  • Ans. 

    Prioritising work involves assessing deadlines, importance, and impact on overall goals.

    • Identify urgent tasks with tight deadlines

    • Consider the importance and impact of each task on overall goals

    • Delegate tasks that can be handled by others

    • Use tools like to-do lists or project management software to stay organized

    • Regularly reassess priorities as new tasks arise

  • Answered by AI
  • Q4. How to do upselling/cross selling
  • Ans. 

    Upselling/cross selling involves offering customers additional products or services to increase sales.

    • Understand customer needs and preferences

    • Recommend complementary products or services

    • Highlight the benefits of the additional offerings

    • Provide personalized recommendations based on customer purchase history

    • Offer bundle deals or discounts for purchasing multiple items

    • Train sales staff on effective upselling/cross sellin

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before May 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(1 Question)

  • Q1. Introduction Previous Sales Experience Passion about your projects
  • Ans. 

    I have extensive sales experience and a passion for delivering successful projects.

    • I have worked in sales for over 5 years, consistently exceeding targets and building strong relationships with clients.

    • I am highly motivated and enjoy the challenge of meeting and exceeding customer expectations.

    • I have a track record of successfully delivering projects on time and within budget, ensuring customer satisfaction.

    • I am passio...

  • Answered by AI
Round 3 - One-on-one 

(1 Question)

  • Q1. Introduction Previous Experience Sales Cycle Experience
  • Ans. 

    I have extensive experience in sales cycle management and have worked in various industries.

    • I have worked in sales for over 7 years, with experience in both B2B and B2C sales.

    • I have managed the entire sales cycle, from prospecting to closing deals.

    • I have experience in industries such as technology, healthcare, and finance.

    • I have consistently exceeded sales targets and have been recognized for my performance.

    • I am skille...

  • Answered by AI
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Basic DS Question, Medium level difficulty , followed with some puzzles

Round 3 - One-on-one 

(1 Question)

  • Q1. System Design : Design in memory Database
  • Ans. 

    Designing an in-memory database involves optimizing data storage and retrieval for fast performance.

    • Use data structures like hash tables or B-trees for efficient indexing and searching

    • Implement caching mechanisms to reduce disk I/O and improve read/write speeds

    • Consider data durability and consistency mechanisms to prevent data loss in case of system failures

  • Answered by AI
Round 4 - One-on-one 

(1 Question)

  • Q1. Discussion with Manager, on projects/work experience and questions around challenges, more on resume /work experience

Interview Preparation Tips

Interview preparation tips for other job seekers - Resume screening, so keep that update and clean
1st Round DS Question are usually very easy/medium level, can be easily passed.

Don't write in resume which u haven't work on /have no idea abut. cause last round will have a lot of discussion on yopur past projects/experience

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Mar 2024. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. 3 sum problem and number of operations required to make 2 strings same
  • Ans. 

    3 sum problem involves finding 3 numbers in an array that add up to a target sum. Number of operations to make 2 strings same involves finding the minimum number of operations (insert, delete, replace) needed to transform one string into another.

    • For 3 sum problem, use a hashmap to store complements of each number and check if the complement exists in the hashmap while iterating through the array.

    • For number of operation...

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. Nearby app machine coding
Round 3 - Technical 

(1 Question)

  • Q1. Project and practices followed and hld for inshort
  • Ans. 

    I have experience working on projects using high-level design (HLD) practices.

    • Utilized UML diagrams to create HLD for projects

    • Followed industry best practices for software design

    • Collaborated with team members to ensure HLD aligns with project goals

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Apr 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Types of REST API methods?
  • Ans. 

    Types of REST API methods include GET, POST, PUT, DELETE, PATCH, and more.

    • GET - Retrieve data from a server

    • POST - Create new data on a server

    • PUT - Update existing data on a server

    • DELETE - Remove data from a server

    • PATCH - Partially update data on a server

  • Answered by AI

Interview Preparation Tips

Topics to prepare for PhonePe Software Engineer interview:
  • RESTful webservices
  • SQL
  • Java

Skills evaluated in this interview

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