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SiMa.ai Interview Questions and Answers
SiMa.ai Interview Experiences
2 interviews found
apoorv choudhary
Selected
I applied via Campus Placement and was interviewed in Jun 2024. There was 1 interview round.
(2 Questions)
- Q1. Saw my project and asked questions n code
- Q2. Asked python based code and asked ml
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Anonymous
Selected
I applied via Campus Placement and was interviewed before Jun 2023. There were 2 interview rounds.
They asked 3 basic DSA questions.
(2 Questions)
- Q1. Just some questions related to OOPS
- Q2. Some information on the project
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I applied via Referral and was interviewed before Sep 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Basic c programming
- Q2. Previous experience questions
Interview Preparation Tips
I was interviewed in Sep 2017.
Interview Questionnaire
2 Questions
- Q1. Find the sum of two numbers without using any mathematical operarors.
- Ans.
Use bitwise operations to find the sum of two numbers without using mathematical operators.
Use bitwise XOR to find the sum of two numbers without carrying.
Use bitwise AND and left shift to find the carry.
Repeat the process until there is no carry left.
- Q2. Delete a node from linked list when we are given a reference to the node. But the head pointer is not given.
- Ans.
To delete a node from a linked list when only given a reference to the node, we can copy the data of the next node to the given node and delete the next node.
Copy the data of the next node to the given node
Update the next pointer of the given node to skip the next node
Delete the next node
Interview Preparation Tips
Tips: Strong understanding and thorough knowledge of C programming.
College Name: IIT Madras
Skills evaluated in this interview
Niranjhana Narayanan
I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Why UDP and not TCP in project
- Ans.
UDP is preferred over TCP in this project due to its low latency and lightweight nature.
UDP is a connectionless protocol, which means it does not establish a direct connection between the sender and receiver.
UDP is faster than TCP as it does not have the overhead of establishing and maintaining a connection.
UDP is suitable for applications where real-time data transmission is crucial, such as video streaming or online ...
- Q2. How would you clear the 7th bit in a 32 bit register
- Ans.
To clear the 7th bit in a 32-bit register, perform a bitwise AND operation with a mask that has all bits set to 1 except the 7th bit.
Create a mask with the 7th bit set to 0 and all other bits set to 1
Perform a bitwise AND operation between the register and the mask
Store the result back in the register
Interview Preparation Tips
Experience: Questions were based on C concepts, given piece of code, find error, output, etc then data structures, bit manipulation, a few aptitude questions were also there (around 5-7).
Tips: Practice aptitude, C, data structures (geeksforgeeks.org is a good source).
Duration: 1 hour
Total Questions: 30
Round: Technical + HR Interview
Experience: I was asked to explain project in detail, I had done projects on embedded, so was asked about that, details like what fields did you use in that structure, why this implementation and not some related other. Memory management, network communications, operating systems. Then questions on C concepts like memory allocation, function pointers, then data structures like linked lists, then bit manipulation in registers. Questions from electrical coursework. Then later, why higher studies, would you still go for higher studies if you had a good job at a company, why etc.
Tips: Be thorough with C (know your Kernighan & Ritchie) and be prepared to go into details about your projects.
Skills: C, Data Structures, Coursework Understanding, Project And Internship
College Name: IIT Madras
Skills evaluated in this interview
I applied via Campus Placement
Interview Questionnaire
16 Questions
- Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be us...
- Q2. Given an array A[n], write a C program to find P and Q (P>Q) such that A[P] - A[Q] is maximum
- Q3. A pyramid is given many blank spaces. Condition is that number in a cell equals sum of numbers in bottom two cells. Fill the blanks
- Ans.
The question asks to fill the blanks in a pyramid where each number is the sum of the numbers in the bottom two cells.
Start from the bottom row and work your way up, calculating the sum of the numbers in the bottom two cells for each blank space.
Use a loop to iterate through each row and column of the pyramid.
Store the calculated sum in the corresponding blank space.
Repeat the process until all the blanks are filled.
- Q4. What are the basic functions of OS?
- Q5. What is scheduling? List different types of scheduling
- Q6. What is a deadlock? How to know if a deadlock is present?
- Q7. What is Moore's Law?
- Ans.
Moore's Law is the observation that the number of transistors in a dense integrated circuit doubles about every two years.
Named after Intel co-founder Gordon Moore
First stated in 1965
Has been a driving force behind technological advancements
Predicts exponential growth in computing power
Has been challenged in recent years due to physical limitations
- Q8. Differentiate between a process and a thread
- Ans.
A process is an instance of a program while a thread is a subset of a process.
A process has its own memory space while threads share memory space
Processes are heavyweight while threads are lightweight
Processes communicate through inter-process communication while threads communicate through shared memory
Examples of processes include web browsers, text editors, etc. while examples of threads include GUI updates, backgro
- Q9. What are the advantages of having multi-core processor?
- Ans.
Multi-core processors provide faster and more efficient computing.
Improved performance and speed
Ability to handle multiple tasks simultaneously
Reduced power consumption
Better multitasking capabilities
Enhanced user experience
Examples: Intel Core i7, AMD Ryzen 9
- Q10. Tell me about yourself and your family briefly
- Ans.
I am a software engineer with a loving family.
I have been working as a software engineer for 5 years.
My wife is a teacher and we have two children.
We enjoy spending time together outdoors and traveling.
My parents live in a different state but we keep in touch regularly.
Family is very important to me and I prioritize spending time with them.
- Q11. Tell me about your course projects
- Ans.
Developed a web-based project management tool and a mobile app for tracking expenses
Created a responsive UI using React and Bootstrap
Implemented user authentication and authorization using Firebase
Integrated Google Maps API for location tracking in the mobile app
Used Node.js and MongoDB for backend development
Collaborated with a team of four to complete the projects
- Q12. Tell me about your professional experience
- Ans.
I have 5 years of experience in software engineering with expertise in Java and Python.
Developed and maintained web applications using Java and Spring framework
Designed and implemented RESTful APIs using Python and Flask
Worked on database management and optimization using MySQL and MongoDB
Collaborated with cross-functional teams to deliver high-quality software products
Participated in code reviews and provided construc
- Q13. What are your academic interests?
- Ans.
My academic interests include computer science, artificial intelligence, and machine learning.
Computer science
Artificial intelligence
Machine learning
- Q14. Explain one CS topic(of your choice) in layman terms
- Ans.
Explain Big O notation
Big O notation is used to describe the time complexity of an algorithm
It helps us understand how the algorithm's performance changes with input size
O(1) means constant time, O(n) means linear time, O(n^2) means quadratic time
We want algorithms with lower Big O values for better performance
- Q15. What are your location preferences?
- Ans.
I am open to relocation based on the job opportunity and growth prospects.
Open to relocation for the right opportunity
Willing to move for career growth
Flexible with location based on job requirements
- Q16. Would you like to have a pizza slice? ;)
- Ans.
Yes, I would love to have a pizza slice!
I am a big fan of pizza and would never say no to a slice!
Pizza is the perfect food for any occasion, whether it's a quick lunch or a late-night snack.
I particularly enjoy pepperoni and mushroom pizza, but I'm open to trying new toppings as well.
Interview Preparation Tips
Experience: Questions were of average difficulty but lengthy. The test was conducted between 7:30 PM and 9 PM. I had a long day so it was a little tiresome.
Tips: Time is of importance. I suggest you to quickly browse through all the questions and pick the easy ones beforehand instead of being stuck on a single difficult question.
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: I found the questions easy so I was able to answer them all.
Tips: Don't just think in your mind. Think out loud so that the interviewer can correct you.
Round: HR Interview
Experience: Interviewer was friendly. It was like talking with a friend.
Tips: Keep it short and brief. It's fine even if your English is not good. (Mine wasn't )
General Tips: Be cool and calm. If you don't know something, admit it. You can come back to it later.
Skill Tips: No need to go very deep. Just know the basics properly.
Skills: Puzzle Solving Capability, Computer Organisation, Operating System Basics, Object Oriented Programming (OOP) Basics, C Programming, Aptitude
Duration: 2
College Name: IIT Madras
Motivation: Qualcomm is an industry leader in mobile hardware. The work profile suited me well.
Funny Moments: The nice HR lady offered me a pizza slice.
Skills evaluated in this interview
Interview Preparation Tips
Experience: questions were mainly asked on C, data structures linked lists, wireless communications. i was asked questions on pointers, linked lists, difference between structures and unions, endien-ness(big or little)
about microprocesors- interrupt scheme: which scheme is better , when?
about assembly programming.
They may ask you to write assembly codes/C program
emphasis is on the logic used and not so much on the syntax.
Tips: do C really well. they ask you about projects. also do communication subjects, microprocessors.
they prefer if you know about data structures and OS but it's okay even if you don't.
be honest. if you don't know something say you don't.
do your final year project well.
College Name: Veermata Jijabai Technological Institute, Mumbai [ VJTI ]
I was interviewed before Apr 2021.
(7 Questions)
Round duration - 60 minutes
Round difficulty - Easy
Technical Interview round with questions on OOPS and OS mainly.
- Q1. What are Little Endian and Big Endian in the context of computer architecture?
- Ans.
Little Endian and Big Endian refer to the order in which bytes are stored in computer memory.
Little Endian stores the least significant byte first, while Big Endian stores the most significant byte first.
Little Endian is commonly used in x86 architecture, while Big Endian is used in architectures like SPARC and PowerPC.
Endianness can affect data transmission between systems with different byte orders.
- Q2. Write a program to determine if your system is little-endian or big-endian.
- Ans.
Program to determine system's endianness
Check the endianness by storing a multi-byte integer and checking the byte order
Use bitwise operations to extract the least significant byte
If the least significant byte is at the lowest memory address, it's little-endian
If the least significant byte is at the highest memory address, it's big-endian
- Q3. What is the volatile keyword in programming?
- Ans.
The volatile keyword in programming is used to indicate that a variable's value can be changed unexpectedly.
Volatile keyword is used in multithreaded programming to prevent compiler optimizations on variables that can be changed by other threads.
It tells the compiler not to cache the variable's value in a register, ensuring that every access is made to the variable's memory location.
Commonly used in embedded systems pr...
- Q4. What is the use of a function pointer in C?
- Ans.
Function pointers in C are used to store the address of functions, allowing for dynamic function calls and callbacks.
Function pointers can be used to implement callbacks in event-driven programming.
They can be used to switch between different functions at runtime.
Function pointers are commonly used in implementing data structures like function pointers in an array of function pointers.
Example: void (*funcPtr)(int) = &a
- Q5. Design a data structure to implement multi-threading.
- Ans.
Design a data structure for multi-threading
Use a thread-safe queue to manage tasks for each thread
Implement a lock or semaphore to control access to shared resources
Consider using condition variables for synchronization
Use atomic operations for shared variables to prevent race conditions
- Q6. What does a kernel do?
- Ans.
The kernel is the core component of an operating system that manages system resources and provides a bridge between software and hardware.
Manages system resources such as CPU, memory, and I/O devices
Provides a bridge between software applications and hardware components
Handles tasks such as process scheduling, memory management, and device drivers
Controls communication between hardware and software layers
- Q7. What is a storage class in programming?
- Ans.
A storage class in programming defines the scope and lifetime of variables.
Storage classes include auto, register, static, and extern.
Auto variables are created when a function is called and destroyed when the function ends.
Register variables are stored in CPU registers for faster access.
Static variables retain their value between function calls.
Extern variables are declared outside of any function and can be accessed
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
I applied via Campus Placement and was interviewed in Dec 2016. There was 1 interview round.
Interview Questionnaire
7 Questions
- Q1. Phases of compiler
- Ans.
Phases of compiler include lexical analysis, syntax analysis, semantic analysis, code generation, and optimization.
Lexical analysis: breaking down input into tokens
Syntax analysis: checking if tokens form valid syntax
Semantic analysis: checking if syntax is semantically correct
Code generation: generating machine code from input
Optimization: improving generated code performance
- Q2. Compiler optimisations
- Q3. Why to c over cpp
- Ans.
C is preferred over C++ for certain applications due to its simplicity and efficiency.
C is a simpler language compared to C++ and has a smaller runtime footprint.
C is often used for low-level programming, embedded systems, and operating systems.
C allows for more control over memory management and can be faster in certain scenarios.
C++ introduces additional features like object-oriented programming and templates, which
- Q4. Classes and structure and memory allocation for them
- Ans.
Classes are blueprints for creating objects, while structures are similar but with different default access levels.
Classes and structures are used to define the structure and behavior of objects in object-oriented programming.
Classes are reference types and are allocated on the heap, while structures are value types and are allocated on the stack.
Memory allocation for classes is managed by garbage collection, while mem...
- Q5. My research area
- Q6. My professional experience
- Q7. Knowledge in cpp, c and debugging
Interview Preparation Tips
Experience: Asked about, basic cpp, c. compiler optimisations and phases, lex and yacc. why and how compiler optimisations help.
Tips: Its good.
Round: Technical Interview
Experience: How good am i in c, cpp. My research area.
Tips: Question where not clear to me. when asked how good are you in cpp, in debugging, in firmware I was not able to understand what the interviewer was looking for.
College Name: IIT Madras
Skills evaluated in this interview
I was interviewed before May 2016.
Interview Preparation Tips
Experience: it was elitmus test conducted by the company itself on campus. As per my knowledge only those scoring 90 percentile got selected for round 2.
Tips: Attempt only those ques that are necessary for scoring 90+ in e litmus. Specially in verbal don't attempt more then required questions, though you might be tempted. The aim is not to score max bt to score 90+
Round: Technical Interview
Experience: This was a programming based round. I was asked to write algorithms for various array linked list based problems. There was cross questioning prompting to reduce complexity and to use different data structures for same problems.
Mostly it focused on subjects like c, data structures and ADA.
Tips: Be clear with basic of data structures and algorithms. Pointers, queue, stacks, array linked lists, sorting etc are the keywords.
Round: Technical Interview
Experience: This was a information security specific round since that was my major. In depth cross questioning on my thesis topics, honeypots, network intrusion etc. Security certificates, and on the go problems to provide security solution layer wise in different scenarios. Security concept of torrents was also asked in detail.
Tips: It was more of a security discussion and throwing of ideas about how things in a particular case could work or could not. Don't worry about right or wrong answer just be clear with your reasoning about the solution you are suggesting.
Round: Other Interview
Experience: I don't know what to name this round, but it focused mainly on developing test cases for an object. Say they gave me a stapler and said to develop a test plan listing down test cases for a given object to pass so that it can be confirmed that it is a stapler. Another scenario was with a lift.
Tips: This is one round where your presence of mind and inter personal skills matter. I think the way you present your thoughts was most important here.
Round: Behavioural Interview
Experience: This was was mostly about how would you react in a given professional situation
Like your assigned work could not be completed on time, or if you are doing something wrong with the work assigned.
Tips: This is all about inter personal skills and putting your best foot forward :)
College Name: Indira Gandhi Delhi Technical University For Women, Delhi
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