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PMG Asia Pacific Interview Questions and Answers
PMG Asia Pacific Interview Experiences
1 interview found
Anonymous
I applied via Referral and was interviewed before Jul 2021. There were 2 interview rounds.
(4 Questions)
- Q1. About your self to cover your whole journey till.
- Q2. Discuss about your experience
- Q3. Discuss about your current company
- Q4. Discuss about your CTC
To related with your job profile
Interview Preparation Tips
Senior Executive Logistics Interview Questions asked at other Companies
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I was interviewed before Apr 2021.
(6 Questions)
Round duration - 60 minutes
Round difficulty - Medium
Started with the discussion why do you want to join DE shaw. Since prior to my current company, I was working with a finance based company so they asked why do you want to come back to finance base company. So they asked my about debentures, bonds, mortgages and other financial jargons.
Then they asked questions related to DSA, OS etc.
- Q1.
Find Triplets with Given Sum Problem Statement
Given an array
ARRconsisting ofNintegers, your task is to identify all distinct triplets within the array that sum up to a given integerK.Explanation:
... - Ans.
The task is to find all distinct triplets in an array that sum up to a given integer.
Iterate through the array and use nested loops to find all possible triplets.
Use a set to store unique triplets and avoid duplicates.
Check if the sum of the triplet equals the target sum.
Return the list of valid triplets or -1 if no such triplet exists.
- Q2.
Minimum Number of Platforms Problem
Your task is to determine the minimum number of platforms required at a railway station so that no train has to wait.
Explanation:
Given two arrays:
AT- represent...
- Ans.
Determine the minimum number of platforms needed at a railway station so that no train has to wait.
Sort the arrival and departure times arrays in ascending order.
Initialize two pointers for arrival and departure times, and a variable to keep track of the maximum number of platforms needed.
Increment the platform count when a train arrives and decrement when a train departs.
Update the maximum platform count as needed.
Ret...
- Q3. What is the difference between internal fragmentation and external fragmentation in operating systems?
- Ans.
Internal fragmentation occurs when memory is allocated in fixed-size blocks, leading to wasted space within a block. External fragmentation occurs when free memory is fragmented into small chunks, making it difficult to allocate contiguous blocks.
Internal fragmentation is caused by allocating fixed-size blocks of memory, leading to wasted space within a block.
External fragmentation occurs when free memory is fragmented...
- Q4. Write an SQL query to find the employee with the nth highest salary.
- Ans.
SQL query to find the employee with the nth highest salary
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT clause to select the nth highest salary
Join the employee table with the salary table to get the employee details
- Q5. How is Java platform independent?
- Ans.
Java is platform independent due to its bytecode and JVM.
Java code is compiled into bytecode, which can run on any platform with a Java Virtual Machine (JVM)
JVM acts as an intermediary between the Java code and the underlying platform, ensuring portability
Developers write code once and it can be executed on any platform that has a compatible JVM
Examples: Windows, macOS, Linux all can run Java programs without any chang
- Q6. What is the difference between an abstract class and an interface in Java?
- Ans.
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructor, member variables, and methods with implementation.
Interface can only have abstract methods and constants.
A class can implement multiple interfaces but can only extend one abstract class.
Example: Abstract class - Animal with abstract method 'eat' and non-abstract method 'sle
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
I was interviewed before Apr 2021.
(4 Questions)
Round duration - 45 minutes
Round difficulty - Medium
Technical Interview round with questions on Core Subjects mainly.
- Q1. What is the difference between C and C++?
- Ans.
C is a procedural programming language while C++ is an object-oriented programming language with features like classes and inheritance.
C is a procedural programming language, while C++ is a multi-paradigm language with support for object-oriented programming.
C does not support classes and objects, while C++ does.
C uses structures for data organization, while C++ uses classes for data organization.
C does not have featur...
- Q2. What is a virtual function?
- Ans.
A virtual function is a function in a base class that is declared using the keyword 'virtual' and can be overridden by a function with the same signature in a derived class.
Virtual functions allow for dynamic polymorphism in object-oriented programming.
They are used to achieve runtime binding and enable the implementation of the function to be determined during runtime.
Example: virtual void display() = 0; in a base cla...
- Q3. What is inheritance in object-oriented programming?
- Ans.
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
Allows for code reusability by creating a new class based on an existing class
Child class inherits attributes and methods of the parent class
Can have multiple levels of inheritance (e.g. grandparent, parent, child classes)
Example: class Dog extends Animal, where Dog inherits properties and methods
- Q4. What is the difference between a Default Constructor and a Copy Constructor in Object-Oriented Programming?
- Ans.
Default Constructor is a constructor that is automatically called when an object is created without any arguments. Copy Constructor is used to create a new object as a copy of an existing object.
Default Constructor has no parameters, while Copy Constructor takes an object of the same class as a parameter.
Default Constructor initializes the object with default values, while Copy Constructor creates a new object with the...
(5 Questions)
Round duration - 40 minutes
Round difficulty - Easy
Technical Interview round with questions on Core Subjects mainly.
- Q1. What are the types of access modifiers in C++?
- Ans.
The types of access modifiers in C++ are public, private, and protected.
Public: accessible from outside the class
Private: only accessible within the class
Protected: accessible within the class and its subclasses
- Q2. What is the difference between DDL (Data Definition Language) and DML (Data Manipulation Language)?
- Ans.
DDL is used to define the structure of database objects, while DML is used to manipulate data within those objects.
DDL is used to create, modify, and delete database objects like tables, indexes, etc.
DML is used to insert, update, delete, and retrieve data from database tables.
DDL statements include CREATE, ALTER, DROP, TRUNCATE, etc.
DML statements include INSERT, UPDATE, DELETE, SELECT, etc.
- Q3. What are the key differences between a Primary Key and a Unique Key in a database management system?
- Ans.
Primary Key uniquely identifies each record in a table, while Unique Key ensures that all values in a column are distinct.
Primary Key does not allow NULL values, while Unique Key allows one NULL value.
A table can have only one Primary Key, but multiple Unique Keys.
Primary Key is automatically indexed, while Unique Key may or may not be indexed.
Primary Key is used to establish relationships between tables, while Unique ...
- Q4. What is the difference between DBMS and RDBMS?
- Ans.
DBMS is a software system that manages databases, while RDBMS is a type of DBMS that stores data in a structured format using tables.
DBMS stands for Database Management System, which is a software system that allows users to interact with a database.
RDBMS stands for Relational Database Management System, which is a type of DBMS that stores data in a structured format using tables with rows and columns.
RDBMS uses Struct...
- Q5. What are the objectives of normalization in database management systems?
- Ans.
Normalization in database management systems aims to reduce data redundancy, improve data integrity, and optimize database performance.
Eliminate data redundancy by breaking down data into smaller tables
Reduce update anomalies by ensuring data is stored in a logical and consistent manner
Improve data integrity by enforcing referential integrity constraints
Optimize database performance by reducing the amount of redundant
Round duration - 30 minutes
Round difficulty - Easy
HR round with typical behavioral problems.
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Interview Preparation Tips
Experience: Though technical questions were not that difficult but the quant section was way too hard and almost impossible to solve completely in given time limit.
Tips: It’s better if you attempt less questions (in quant) but do them right (I attempted less than 40% quant and still got through).
Round: Technical Interview
Experience: Next they would have 2-3 technical rounds where they cover most of the areas of CS. Some of the areas where they concentrated more would be Algorithms, OOPS Concepts and Logical Puzzles.
Tips: Brush up important concepts from various areas such as Operating System, OOPS, Software Engineering. Be ready for some really challenging questions in Algorithms. Also they do ask quite a few logical puzzles so it’s important you practice a lot of them online before the interview.
General Tips: D E Shaw selects very few candidates + comes in starting weeks of placement season, so competition is immense. Multiple companies come on same day, so it becomes a little tedious. Surely I wasn't the better candidate that day.
Skill Tips: D E Shaw focuses more on your ability to solve logical problems, so make sure you are in best state of your mind and speak while solving any problem because what they are looking for is not the right answer (well of course they are) but also how are you approaching the problem.
Skills: Operating System, OOPS, Algorithms, CS, logical puzzles, Quant
College Name: NIT SURATHKAL
I was interviewed before Apr 2021.
(1 Question)
Round duration - 40 minutes
Round difficulty - Medium
The test has 3 sections :
1. Quantitative contains 20 questions. These questions are easy to me. If u practice quant, you can easily solve it.
2. Technical contains 20 questions. Some questions are on C , C++ , java outputs. Remaining are based on DSA. If u Know all the time complexities of algorithms then it is easy . In technical they gave one DSA problem.
3. Essay: They have given one picture and then asked to write an essay by seeing the picture.
- Q1.
Dijkstra's Algorithm for Shortest Path
Given an undirected graph with 'V' vertices labeled from 0 to V-1 and 'E' edges. Each edge has a weight that represents the distance between two nodes 'X' and 'Y'.
...
- Ans.
Dijkstra's algorithm is used to find the shortest path distances from a source node to all other vertices in a graph.
Dijkstra's algorithm is a greedy algorithm that finds the shortest path from a source node to all other nodes in a graph.
It uses a priority queue to select the node with the smallest distance and relaxes its neighbors.
The algorithm maintains a distance array to keep track of the shortest distances from t...
(3 Questions)
Round duration - 60 minutes
Round difficulty - Easy
3 persons are there in panel. They are asking questions on basic concepts in subjects and some advanced concepts.
- Q1. What is a Daemon Process?
- Ans.
A daemon process is a background process that runs continuously to perform system tasks.
Daemon processes do not have a controlling terminal.
They typically run in the background and perform tasks such as managing hardware devices, network services, or system maintenance.
Examples of daemon processes include cron, sshd, and apache.
Daemon processes are often started during system boot and run until the system is shut down.
- Q2. What are the advantages of system calls in operating systems?
- Ans.
System calls provide a way for user-level processes to interact with the operating system kernel.
System calls allow user programs to request services from the operating system.
They provide a secure and controlled way for applications to access system resources.
System calls enable processes to perform tasks such as file operations, network communication, and process management.
Examples of system calls include open(), re
- Q3. Can you explain the select() system call?
- Ans.
The select() system call is used in Unix-like operating systems to monitor multiple file descriptors for activity.
select() allows a program to wait for multiple I/O operations to complete on multiple file descriptors.
It takes three sets of file descriptors as arguments - readfds, writefds, and errorfds.
The function will block until an activity is detected on one of the file descriptors or until a timeout occurs.
select(...
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
I was interviewed before Apr 2021.
(2 Questions)
Round duration - 45 minutes
Round difficulty - Medium
Technical Interview round with questions on DSA.
- Q1.
Binary Tree Mirror Conversion Problem
Given a binary tree, your task is to convert it into its mirror tree.
A binary tree is a data structure where each parent node has at most two children.
The mirror ...
- Ans.
Convert a binary tree into its mirror tree by interchanging left and right children of non-leaf nodes.
Traverse the binary tree in postorder fashion and swap the left and right children of each non-leaf node.
Use recursion to solve the problem efficiently.
Remember to handle null child nodes represented by -1 in the input.
- Q2.
Maximum Sum Subarray Problem Statement
Given an array of integers, find the maximum sum of any contiguous subarray within the array.
Example:
Input:
array = [34, -50, 42, 14, -5, 86]
Output:
137
Exp...
- Ans.
Find the maximum sum of any contiguous subarray within an array in O(N) time complexity.
Iterate through the array and keep track of the maximum sum of subarrays encountered so far
At each index, decide whether to include the current element in the subarray or start a new subarray
Update the maximum sum if a new maximum is found
Example: For array [34, -50, 42, 14, -5, 86], the maximum sum subarray is [42, 14, -5, 86] with
(2 Questions)
Round duration - 45 minutes
Round difficulty - Hard
Technical Interview round with questions on DSA.
- Q1.
Find the Largest BST Subtree in a Given Binary Tree
Your task is to determine the size of the largest subtree of a given binary tree which is also a Binary Search Tree (BST).
BST Definition:
- The left...
- Ans.
Find the size of the largest subtree in a binary tree that is also a Binary Search Tree (BST).
Traverse the binary tree in a bottom-up manner to check if each subtree is a BST.
Keep track of the size of the largest BST subtree encountered so far.
Use the properties of a BST to determine if a subtree is a valid BST.
Consider edge cases such as empty tree or single node tree.
Example: For input 1 2 3 4 -1 5 6 -1 7 -1 -1 -1 -1
- Q2.
Next Higher and Previous Lower Number with Same Number of Set Bits
Given a positive integer
n, the task is to find the next smallest integer and the previous largest integer that contain the exact same nu... - Ans.
Find next smallest and previous largest integers with same number of set bits as given integer.
Count the number of set bits in the given integer using bitwise operations.
For next smallest integer, find the next number with same number of set bits by iterating through numbers greater than the given integer.
For previous largest integer, find the previous number with same number of set bits by iterating through numbers sm
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Interview Preparation Tips
Experience: The first round had two sections. First section consisted of general aptitude and technical aptitude questions. In the second section we were given one coding question, for which we had to write the code in a language of our preference (C,C++,Java). Around 20 students were selected in the first round.
Round: Technical Interview
Experience: The second round was a technical interview. Two interviewers were present and the interview duration was 1-1.5 hours. Questions on Computer Networks, Databases, Operating Systems, Algorithms were asked. But they were more concerned about coding fundamentals especially C++ and Java. 6 students were selected in the second round.
Round: Technical Interview
Experience: Third round was again a technical interview. The interview process was same as previous second round.
Round: HR Interview
Experience: All the 6 students who were selected for the third round had a HR interview.
General Tips: The technical interview process was exhausting as the interview duration was 1-1.5 hours and challenging as they asked questions from all major fields of computer science.
Skill Tips: Prepare a decent resume and have at least 3-4 hard copies of it available with you all the times.Also do carry passport size photos with you. While going for interviews wear proper formals,carry 2-3 copies of resume and a pen.
Skills: C, Basic coding questions, Database, Data structures, Computer Networks, OS, Algorithms
College Name: NIT SURATHKAL
Interview Preparation Tips
Experience: I started my placement journey by getting shortlisted in Capital One on Day 1. They shortlisted 125 candidates on the basis of resume.
Round: Case Study Interview
Experience: Then, they took a case study interview and reduced the number to 30.
Round: Test
Experience: Then, they again took an aptitude test and selected none of them. But, on the day 2, I sat for the GDs and interviews of Coca Cola and got selected.
College Name: IIT KANPUR
Interview Preparation Tips
Experience: There was initially an interview of about 5 mins in which they asked me to describe a situation where I worked in a team.
Round: Case Study Interview
Experience: Then there was a case study round. It was a slightly involved case on the credit card industry and involved a lot of
calculations. There were 3 different credit card strategies with different rates of interest and credit limits and we had to choose the best strategy for the company. I came up with correct strategy and hence got through the first round.
The 2nd case was that of Dominos evaluating a new scheme wherein they would offer a 30% discount instead of 100%, in cases where the pizzas could not be delivered within 30 minutes. Next the discount was changed to 70%. I was asked to evaluate the on-time delivery that they can risk not to have in order to make the same profit as they make when they give 100% discount and have 90% on-time delivery. Then I was asked to plot a graph between on-time delivery and the discount offered and interpret it. It was there that I lost track and couldn't come up with the right conclusion. Nevertheless I was selected for the next round.
Round: Behavioural Interview
Experience: It was a behavioral interview wherein I had to describe them 3 situations in detail. During the entire interview the interviewer kept writing something on the paper. The key to this round was choosing the right incidents and then describing each and every point in detail. It lasted for about 30 mins. Ideally there were to be only 2 rounds of case interview and one behavioral interview but I was again called for a 3rd case interview round. It was very similar to the 1st case except that the credit card company was replaced by a dish-tv one. This one didn't go very well as I was very much exhausted and hence faltered at several places.
College Name: IIT KANPUR
Interview Preparation Tips
Experience: The test was purely based on Data Interpretation. Every page had 3 charts and 5 objective questions based on those charts. There was severe time constraint in the paper and my selectivity among the questions proved beneficial in clearing the cut-off.
Duration: 60 minutes
Total Questions: 30
Round: Interview
Experience: Preliminary Case Interview: Duration -10 minutes (Just after the Written Test) - One on One Case Interview.
"Tell me about yourself" was the first question asked to me. I just told him a few things about myself mainly focusing on the financial projects I did. Then he gave me a trivial case study as follows, "There are two economical classes, Prime and Sub-Prime, and I had to give a Motorcycle loan to one of them. Whom should I give?" I was supposed to ask him any information that I would require to solve this case study. Whenever I used to get stuck he gave me hints to work upon. And finally, based on the value he gave me I could compare the profit from both the classes. The main thing about the case study was the way of solving it and how interactive was I with the interviewer.
After this, the next round was held during the placement time. They had given us the link for few practice case-studies. The Case Study given at their website is the most important one. It helps you understand the standard approach they look for in a candidate.
Round: Interview
Experience: 1st Case Interview: Duration – 50 minutes
My interview was of the longest duration compared to others, so if your interview is a lengthy one then be happy :). The case was based on Credit insurance involving simple mathematics to reach a logical conclusion.
The Case Study: - "Capital One reached its customers for new offers through postal mail. They had 2 kinds of postal services, A class and C class. In A Class, if the customer had changed his address then the postal service would update the address on the letter and it would reach the customer at the new address. In C Class, if the address is changed then the customer would not get the mail. I was supposed to tell which one of the postal service was better in two conditions, 1st when no. of mail to be made is fixed and 2nd when amount to be spend in mailing is fixed."
I found this case simpler than the earlier one. I managed to complete the case in just 20 minutes. The interviewer was very impressed with the speed with which I was able to solve the case. It was enough to make me realize that I had made it.
Tips: The main thing that you need to remember in Case Study of this sort is that you need to speak your mind. It helps the interviewer understand the way you are thinking. So if you have made some calculation mistake he wouldn’t mind that because he knows that you are going in the right direction. This was something the interviewer told me that he liked about
me.
General Tips: The Biggest question that all of us face in final year is "WHAT NEXT". With the options like CAT/GRE/CORE/FINANCE/CONSULTING it becomes extremely difficult to select just one. Initially I had no idea what it was going to be, but after my internship I knew that I wouldn't be going for either core or higher studies. After talking to seniors, I realized that doing MBA after one or two years of work experience would be better - you know what you have to focus on and would also give you a smoother platform to change your field of job if
you are not comfortable in it. So my choices just narrowed down to jobs in either finance or consulting. Looking at the job scenario in our placement season, I knew I had to prepare for all of them. That is one of the reasons I appeared for CAT because it is always good to have an option and also preparing for CAT helps a lot in placement preparation. One needs to be thoroughly prepared for each of the placement processes.
Resume:
A resume is one of the most important things which mark the first impression upon the interviewer. You should devote ample time to work upon it. Every company looks for a different kind of candidate to suit their purpose; make sure your resume fits that profile. Prepare resumes separately for each sector with some minor changes for companies of same sector. Get your resume checked and rechecked by some alumnus in the company you are
applying for.
PPTs:
The best way to know about the company is through its PPT. It gives you the details of the work profile and also tells you what kind of candidate the company is looking for. It is an opportunity to get all your queries, regarding the company and the work profile clarified.
Written Test:
Usually the CAT preparation is more than enough to crack the data interpretation and aptitude tests (excluding the technical tests). Practice plays an important role here to be able to solve the lengthy tests speedily and accurately. People aiming the finance companies must read Economic Times (specially the editorials) regularly to form a broader perspective of the financial situation all over the world.
Group Discussions:
I used to think that GD is just another formal bulla session that we have. But it turned out to be a complete disaster when I had a GD round during an Internship process. It is just not what you speak that matters, but also how well you convey your points, how well you work in a group, do you understand the group dynamics, your body language, and other group etiquette that matter. The most disappointing thing was that when SPO had started this session for GD practice very few people turned up. It is through these sessions that you learn
the Do's and Don’ts of a GD. With every GD session that we used to have, I used to learn some new thing or the other.
Case Studies:
At first case studies seem to be highly intimidating. The workshops on Case Study by SPO helped me clear all my apprehensions, and then the process became a lot easier. Initially we used to solve a case in a group of 2-3 people and afterwards we did it individually discussing the methodology that we adopted and the different solutions that we approached. The discussions were the most important part as we learned what mistake we committed. It helped us frame our mindset in the right direction.
HR Interviews:
To be able to do well in an HR interview one needs to do a lot of introspection about one’s own self. This helps you in answering some very basic questions like your strengths, weakness, your future objective etc. You should be able to modify your answers according to the company profile. I prepared for HR interview in a group of 3. Initially, we gathered all the questions that the interviewer is likely to ask. We divided our answers based on the
company profile and also prepared examples to support our qualities. Finally we conducted 3-4 rounds of mock interviews.
College Name: IIT KANPUR
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