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Cohesity Engineering Intern Interview Questions and Answers

Updated 25 Sep 2024

Cohesity Engineering Intern Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed before Sep 2023. There were 2 interview rounds.

Round 1 - Coding Test 

Cant remember much of how round 1 happened

Round 2 - Technical 

(2 Questions)

  • Q1. Give a base 7 representation of a number - coding question
  • Ans. 

    Convert a number to base 7 representation

    • Divide the number by 7 and store the remainder in each step

    • Repeat until the quotient is 0

    • Reverse the remainders to get the base 7 representation

  • Answered by AI
  • Q2. Min and max in matrix calculation
  • Ans. 

    Finding the minimum and maximum values in a matrix

    • Iterate through each element in the matrix to find the minimum and maximum values

    • Initialize min and max variables with the first element in the matrix

    • Compare each element with the current min and max values and update accordingly

    • Example: For a matrix [[1, 2, 3], [4, 5, 6]], min = 1, max = 6

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - focus on design more. Coding questions are known to be simple in cohesity rounds when compared to rubrik

Skills evaluated in this interview

Interview questions from similar companies

I was interviewed before Jan 2016.

Interview Questionnaire 

1 Question

  • Q1. Technical interview

Interview Preparation Tips

Round: Test
Experience: techincal questions from C,C++ . mostly pointers. few ques from DB, and OS.

Duration: 1 hour 30 minutes
Total Questions: 45

Round: Test
Experience: This is a rigourous 6-8 hours coding round where you are given a problem statement to solve .
The company people are there to guide you through the process .
Duration: 6 hours
Total Questions: 1

Round: Technical Interview
Experience: A panel of 2-3 members takes your inteview on basic fundamental c++, data structures questions.
duration is mostly 45 mins to 1hr.

Skills: C++, Coding Skills And Knowledge On Data Structures, Pointers In C, Logical Puzzles, Thinking Approach
College Name: Netaji Subhas Institute Of Technology, Delhi

I applied via Referral

Interview Questionnaire 

34 Questions

  • Q1. Give a few technical differences between Windows and UNIX
  • Ans. 

    Windows and UNIX have several technical differences.

    • Windows has a graphical user interface (GUI) while UNIX is primarily command-line based.

    • Windows uses the NTFS file system while UNIX typically uses the ext4 file system.

    • Windows supports a wide range of software applications, while UNIX is known for its stability and security.

    • Windows has a larger user base and is more commonly used for personal computers, while UNIX is...

  • Answered by AI
  • Q2. Give a few differences between NTFS and FAT
  • Ans. 

    NTFS and FAT are file systems used in Windows operating systems with differences in features and capabilities.

    • NTFS supports file and folder permissions, while FAT does not.

    • NTFS has built-in support for file compression and encryption, while FAT does not.

    • NTFS has a journaling feature that helps in recovering from system crashes, while FAT does not.

    • NTFS supports larger file sizes and partition sizes compared to FAT.

    • NTFS ...

  • Answered by AI
  • Q3. Mention the layers in OSI stack
  • Ans. 

    The OSI stack consists of 7 layers that define the functions and protocols of network communication.

    • Physical layer: Deals with the physical transmission of data.

    • Data Link layer: Provides error-free transmission over a physical link.

    • Network layer: Handles routing and logical addressing.

    • Transport layer: Ensures reliable data delivery and manages end-to-end connections.

    • Session layer: Establishes, manages, and terminates s...

  • Answered by AI
  • Q4. Explain in detail the concept of NAT and DHCP
  • Ans. 

    NAT (Network Address Translation) is a technique used to translate private IP addresses to public IP addresses, allowing devices on a private network to communicate with the internet. DHCP (Dynamic Host Configuration Protocol) is a network protocol that automatically assigns IP addresses and other network configuration parameters to devices on a network.

    • NAT allows multiple devices on a private network to share a single...

  • Answered by AI
  • Q5. What is the difference between hub, switch, and router?
  • Ans. 

    A hub is a simple networking device that connects multiple devices in a network. A switch is a more advanced device that filters and forwards data packets. A router is a device that connects multiple networks and directs data packets between them.

    • A hub operates at the physical layer of the OSI model, while a switch operates at the data link layer.

    • A hub broadcasts data to all connected devices, while a switch selectivel...

  • Answered by AI
  • Q6. What is collision domain? How does bridge segregate collision domains?
  • Ans. 

    Collision domain is a network segment where collisions can occur. Bridges segregate collision domains by creating separate segments.

    • Collision domain is a section of a network where network devices share the same bandwidth and can collide with each other.

    • Collisions occur when two or more devices transmit data simultaneously on a shared medium.

    • Bridges create separate collision domains by dividing a network into multiple ...

  • Answered by AI
  • Q7. Given a routine which sorts only positive numbers, write a wrapper around it to sort both positive and negative numbers
  • Q8. Suggest a suitable combination of array and hashmap to design the underlying data structures behind an educational institution’s website. The website supports selection of a particular department, a part...
  • Ans. 

    A combination of array and hashmap can be used to design the underlying data structures for an educational institution's website.

    • Use an array to store the departments available in the institution.

    • Each department can be represented as a key in the hashmap.

    • The value corresponding to each department key in the hashmap can be another hashmap.

    • This nested hashmap can store the courses available in the department.

    • The courses ...

  • Answered by AI
  • Q9. Give the design considerations for a client server system wherein the client gets a virtual operating system on the fly through the network from a server consisting of several such operating systems
  • Ans. 

    Design considerations for a client-server system with virtual operating systems on the fly

    • Scalability: Ensure the system can handle multiple clients requesting virtual operating systems simultaneously

    • Resource allocation: Manage resources efficiently to provide virtual operating systems to clients

    • Network bandwidth: Optimize network usage to deliver virtual operating systems quickly

    • Security: Implement measures to protect...

  • Answered by AI
  • Q10. What are the different types of virtualization?. I was asked to differentiate between system and process virtualization
  • Q11. Explain VMware’s virtualization on a multicore machine
  • Ans. 

    VMware's virtualization on a multicore machine allows for efficient utilization of resources and improved performance.

    • VMware's virtualization technology enables the creation of multiple virtual machines (VMs) on a single multicore machine.

    • Each VM can run its own operating system and applications, isolated from other VMs.

    • The hypervisor, such as VMware ESXi, manages the allocation of CPU, memory, and other resources to e...

  • Answered by AI
  • Q12. Pack 51 apples in minimum number of packets such that with the packets I have made, I should be able to give any number of apples between 1 and 51
  • Ans. 

    The minimum number of packets required to pack 51 apples such that any number of apples between 1 and 51 can be given.

    • The minimum number of packets required is 6.

    • Each packet should contain a power of 2 number of apples.

    • The packets should be of sizes: 1, 2, 4, 8, 16, and 20.

    • By combining these packets, any number of apples between 1 and 51 can be given.

  • Answered by AI
  • Q13. Write a program to implement strstr
  • Ans. 

    Program to implement strstr function in C++

    • Use two nested loops to compare each character of the haystack and needle

    • If a match is found, return the starting index of the substring

    • If no match is found, return -1

  • Answered by AI
  • Q14. From an incoming stream of numbers, construct a binary tree such that it is almost balanced
  • Ans. 

    To construct an almost balanced binary tree from an incoming stream of numbers.

    • Use a self-balancing binary search tree like AVL or Red-Black tree.

    • Insert the numbers from the stream into the tree.

    • Perform rotations or rebalancing operations as necessary to maintain balance.

    • Consider using a priority queue to handle the incoming stream efficiently.

  • Answered by AI
  • Q15. How would I implement the autocomplete feature for search queries?
  • Ans. 

    Implementing autocomplete feature for search queries

    • Use a trie data structure to store the search queries

    • As the user types, traverse the trie to find matching prefixes

    • Return the suggestions based on the matching prefixes

    • Consider using a ranking algorithm to prioritize suggestions

  • Answered by AI
  • Q16. What is a semaphore?
  • Ans. 

    A semaphore is a synchronization object that controls access to a shared resource through the use of a counter.

    • Semaphores can be used to limit the number of threads accessing a resource simultaneously.

    • They can be used to solve the critical section problem in concurrent programming.

    • Semaphores can have two types: counting semaphores and binary semaphores.

    • Counting semaphores allow a specified number of threads to access a...

  • Answered by AI
  • Q17. Code the P and V operations of a semaphore
  • Ans. 

    The P and V operations are used to control access to a shared resource using a semaphore.

    • P operation (wait operation) decreases the value of the semaphore by 1, blocking if the value is already 0.

    • V operation (signal operation) increases the value of the semaphore by 1, releasing a waiting process if any.

    • P and V operations are typically used in synchronization mechanisms to prevent race conditions and ensure mutual excl...

  • Answered by AI
  • Q18. Explain REST web service
  • Ans. 

    REST web service is an architectural style for designing networked applications that use HTTP as the communication protocol.

    • REST stands for Representational State Transfer

    • It is based on a client-server model

    • It uses standard HTTP methods like GET, POST, PUT, DELETE

    • Resources are identified by URIs

    • Responses are typically in JSON or XML format

  • Answered by AI
  • Q19. Is HTTP a stateless or stateful protocol?
  • Ans. 

    HTTP is a stateless protocol.

    • HTTP is stateless because it does not retain any information about previous requests or responses.

    • Each request is treated as an independent transaction, and the server does not maintain any knowledge of the client's state.

    • To maintain state, cookies or session management techniques can be used.

    • Statelessness allows for scalability and simplicity in web applications.

  • Answered by AI
  • Q20. What is shared memory?
  • Ans. 

    Shared memory is a memory space that can be accessed by multiple processes or threads simultaneously.

    • Shared memory allows processes or threads to communicate and share data efficiently.

    • It is typically used in inter-process communication (IPC) to avoid the overhead of copying data between processes.

    • Shared memory can be implemented using operating system mechanisms like memory-mapped files or system calls.

    • Example: Multip...

  • Answered by AI
  • Q21. What motivates me in life?
  • Q22. Explain the alignment issues in structures
  • Ans. 

    Alignment issues in structures occur due to memory padding and alignment requirements.

    • Structures may have unused memory space due to alignment requirements.

    • Padding is added to align structure members on memory boundaries.

    • Alignment issues can lead to wasted memory and decreased performance.

    • Compiler directives like #pragma pack can be used to control alignment.

    • Example: struct MyStruct { char a; int b; char c; };

  • Answered by AI
  • Q23. I am given two files viz. f1.c, f2.c, both having a call to malloc(). Can the address of the locations returned by these two be same?
  • Q24. Explain memory management unit
  • Ans. 

    Memory Management Unit (MMU) is a hardware component that manages memory access and translation between virtual and physical addresses.

    • MMU is responsible for translating virtual addresses used by programs into physical addresses in the computer's memory.

    • It provides memory protection by assigning access permissions to different memory regions.

    • MMU also handles memory allocation and deallocation, ensuring efficient use of...

  • Answered by AI
  • Q25. What is a socket?
  • Ans. 

    A socket is an endpoint for communication between two machines over a network.

    • A socket is a software abstraction that allows programs to send and receive data over a network.

    • It provides a mechanism for inter-process communication between applications running on different machines.

    • Sockets can be used for various network protocols such as TCP/IP, UDP, etc.

    • They are identified by an IP address and a port number.

    • Examples of...

  • Answered by AI
  • Q26. I was asked in detail the concept of type casting in C
  • Q27. Can I declare a structure called ‘a’ which contains a structure called ‘b’ and ‘b’ in turn contains ‘a’?
  • Ans. 

    Yes, it is possible to declare a structure 'a' that contains a structure 'b' and 'b' in turn contains 'a'.

    • To achieve this, we can use forward declaration of one of the structures.

    • By using a pointer or reference to the other structure inside the first structure, we can avoid recursive definition.

    • This allows us to create a nested structure hierarchy.

  • Answered by AI
  • Q28. How do I find the offset of a member of a structure object? How would I do the same if I am not allowed to create the object at all?
  • Ans. 

    To find the offset of a member of a structure object, use the 'offsetof' macro. If not allowed to create the object, use 'sizeof' and pointer arithmetic.

    • Use the 'offsetof' macro to find the offset of a member within a structure object

    • If not allowed to create the object, use 'sizeof' to get the size of the structure and perform pointer arithmetic

  • Answered by AI
  • Q29. I was asked to tell something about me that was not in my resume?
  • Q30. What are my strengths?
  • Q31. What do I know about Netapp?
  • Ans. 

    Netapp is a multinational storage and data management company.

    • Netapp specializes in providing storage solutions for businesses and organizations.

    • They offer a wide range of products and services including storage systems, software, and cloud services.

    • Netapp's solutions help organizations manage and protect their data, improve efficiency, and enable data-driven decision making.

    • They have a strong presence in the enterpris...

  • Answered by AI
  • Q32. What do I think about higher studies?
  • Q33. What is my family background? Do I have any siblings?
  • Ans. 

    I come from a close-knit family with two siblings, an older brother and a younger sister.

    • Close-knit family

    • Two siblings - older brother and younger sister

  • Answered by AI
  • Q34. My preferences regarding the various job profiles they had to offer?
  • Ans. 

    I am interested in job profiles that involve software development, problem-solving, and continuous learning.

    • I prefer job profiles that allow me to work on challenging projects and utilize my technical skills.

    • I am interested in roles that involve software development, coding, and debugging.

    • I enjoy problem-solving and would like a job that challenges me to think creatively and analytically.

    • I value continuous learning and

  • Answered by AI

Interview Preparation Tips

Skills:
College Name: NA

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Off-campus interviews in Bangalore

Interview Preparation Tips

Round: Test
Experience: Only a few students will get shortlisted who do all the questions correctly.

Round: Other Interview
Experience: First 4 rounds on day 1 and this are just to shortlist for more rounds on some other day.
Tips: They will focus on almost all the concepts of computer science.You need to practice a lot and start it right now. Should be easy if you have prepared well enough. Use your holidays to start preparing for placements.

General Tips: Sooner you start, better your placement will be as lack of practice & last day study works only for exams but never for interviews. You'll get enough time to prepare for interviews once you get shortlisted. Focus on it even if you are placed already.
Skill Tips: They will focus on almost all the concepts of computer science.
Skills: C , Aptitude
College Name: NIT SURATHKAL

I was interviewed in Dec 2016.

Interview Preparation Tips

Round: Technical Interview
Experience: On-site interview (5 hours).

4 back-to-back 45-minute coding interviews, followed by a design interview, with a lunch break with a Googler in the middle.

The first coding interview was a set of (surprisingly) trivial (no algorithms needed) incremental coding questions.

The two next coding interviews were problems straight from the "Cracking the coding interview" book. Even though I divulged that I'd solved pretty much exactly the same problem before, they didn't give me an alternative problem and I quickly coded up a general and optimal solution for the problems. Follow-up in-depth questions were minimal and not hard.

The last coding question was a pure algorithm question related to search trees/tries. No coding required, spent the whole time reasoning about the most effective algorithm. This was a bit of a brain twister.

The design question was related to high-level system design (not OO design) for storage and search in geographic data. Focus was effective search as well as scalability both in traffic and data volumes.

Tips: Read "Cracking the coding interview" or other similar literature. Solve all the problems and you should be good to go. If you solve a bunch of problems at HackerRank (or similar) as well, you'll have the added bonus of training on how to generalize the algorithms.

Interview Preparation Tips

Round: Resume Shortlist
Experience: I had a standard resume for this company as per the norms of our institute’s placement cell. For Oracle I laid emphasis on my programming skills and projects related to it.

Round: Test
Experience: The first round was the written test that comprised of 5 sections – vocabulary, aptitude, pattern matching, logical reasoning and programming. The questions in the programming section were asked from data structures and C++. The questions in the programming section were mainly from trees (from data structures). Around 400 students appeared for their written test out of which around 100 were shortlisted.

Round: HR Interview
Experience: The next round was the interview round. They gave me some puzzles to solve and a program to write. One of the puzzles that I remember was that if I were to be given an egg then how would I determine its durability, i.e. how would I determine that from which floor do I need to throw the egg from so that the egg does not break if thrown from any floor below it.
For the coding question I was given a mathematical formula and I was asked to devise a code such that the program uses the formula and gives the output.
Tips: Prepare for Data Structures as well as the commonly asked puzzles for Oracle.

College Name: IIT ROORKEE
Motivation: Oracle is a reputed company in the space of software and ITeS. It had come to our campus with five profiles. The best means to know about all of them is to attend the pre-placement talk of the company.

I was interviewed before May 2016.

Interview Preparation Tips

Round: Test
Experience: First section had questions on object oriented programming concepts and some basic questions related to c++
In the second section tables were given and we were asked to write the queries for the given questions.
Duration: 1 hour
Total Questions: 20

College Name: IIITDM Jabalpur

I applied via Company Website and was interviewed before Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Networks based questions
  • Q2. Os based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Good and tough for fresher to crack, Nice package and good people who will guid u in interview process in case you are stuck at answer

I applied via Company Website and was interviewed in Dec 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. They asked to calculate time complexity of any algorithm

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice is the only silver bullet to crack any interview!
Do coding of problem on notepad. Refer DS, ALGO related problem from GeeksOfGeeks site.

And 1 more thing coding is an art and please do not mug up the code, just try to understand the tricks, logic and solution and use those tricks and solution to solve any coding problem.

Do practice, Do practice and Do practice....nothing else

I applied via Approached by Company and was interviewed before Aug 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. What is difference between abstract class and interface?
  • Ans. 

    Abstract class can have implementation while interface cannot. Classes can implement multiple interfaces but only one abstract class.

    • Abstract class can have constructors while interface cannot.

    • Abstract class can have non-abstract methods while interface cannot.

    • Interfaces are used for full abstraction while abstract classes are used for partial abstraction.

    • Example: Abstract class - Animal with method eat() and subclass ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn about java and object oriented programming programming.

Skills evaluated in this interview

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Cohesity Interview FAQs

How many rounds are there in Cohesity Engineering Intern interview?
Cohesity interview process usually has 2 rounds. The most common rounds in the Cohesity interview process are Coding Test and Technical.
What are the top questions asked in Cohesity Engineering Intern interview?

Some of the top questions asked at the Cohesity Engineering Intern interview -

  1. Give a base 7 representation of a number - coding quest...read more
  2. min and max in matrix calculat...read more

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