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Polycom Interview Questions and Answers

Updated 3 Jun 2015

Polycom Interview Experiences

2 interviews found

Interview Questions & Answers

user image Anonymous

posted on 21 May 2015

Interview Questionnaire 

17 Questions

  • Q1. The interviewer started from the basics, and then gradually elevated the difficulty level(overall it was easy), the questions asked by him were-Q1. You are given a 32 bit unsigned integer and you have to s...
  • Q2. Create a structure for link list and insert two nodes in it(write the code). (Since i know STL as well, first i coded it in C and then used STL as well)
  • Ans. 

    Create and insert nodes in a linked list using C and STL.

    • Define a struct for the linked list node

    • Allocate memory for the nodes using malloc or new

    • Set the data and next pointer for each node

    • Use push_back or insert functions in STL for insertion

  • Answered by AI
  • Q3. You are given a pointer to a node in the link list(starting pointer is not given) and you have to delete that node
  • Ans. 

    Deleting a node in a linked list given a pointer to the node.

    • Save the next node's pointer in a temp variable

    • Copy the data of the next node to the current node

    • Delete the next node using the temp variable

  • Answered by AI
  • Q4. Clearly explain the TCP/IP protocol stack alongwith the functioning of each layer
  • Ans. 

    TCP/IP protocol stack consists of 4 layers: Application, Transport, Internet, and Network Access.

    • Application layer: interacts with user applications and provides services like email, file transfer, etc.

    • Transport layer: responsible for end-to-end communication between hosts and provides reliable data transfer using TCP or unreliable using UDP.

    • Internet layer: responsible for routing packets across networks using IP addre...

  • Answered by AI
  • Q5. How does a router routes a packet
  • Ans. 

    A router routes a packet by examining the destination IP address and forwarding it to the appropriate network.

    • The router receives a packet from a device on one of its interfaces

    • The router examines the destination IP address in the packet header

    • The router looks up the destination IP address in its routing table

    • The router forwards the packet to the appropriate interface based on the routing table

    • If the destination networ...

  • Answered by AI
  • Q6. How does a router uses longest prefix matching to route a packet
  • Ans. 

    A router uses longest prefix matching to find the most specific route for a packet.

    • The router looks at the destination IP address of the packet

    • It compares the address with the entries in its routing table

    • The router selects the entry with the longest matching prefix

    • The packet is then forwarded to the next hop in that route

    • If there is no matching prefix, the router uses the default route

    • Longest prefix matching ensures ef...

  • Answered by AI
  • Q7. What is page fault
  • Ans. 

    Page fault is an error that occurs when a program tries to access a page that is not currently in physical memory.

    • Occurs when a program tries to access a page not in physical memory

    • Operating system retrieves the page from disk to physical memory

    • Can cause performance issues if it happens frequently

    • Can be caused by insufficient memory or memory fragmentation

  • Answered by AI
  • Q8. How does a page fault is serviced
  • Ans. 

    Page fault is serviced by fetching the required page from disk to memory.

    • When a process tries to access a page that is not in memory, a page fault occurs.

    • The operating system then checks if the page is present in the disk.

    • If the page is not present in the disk, it results in a segmentation fault.

    • If the page is present in the disk, it is fetched to memory and the process continues.

    • The process is then restarted from the

  • Answered by AI
  • Q9. How ping is implemented(told him about the ICMP)
  • Q10. How can you calculate the round trip time and bandwidth of the network using Pin
  • Ans. 

    Calculating round trip time and bandwidth of network using Pin

    • Use Pin to measure the time it takes for a packet to travel from source to destination and back

    • Divide the round trip time by 2 to get the one-way latency

    • Calculate bandwidth by dividing the size of the packet by the one-way latency

    • Repeat the process with different packet sizes to get an average bandwidth

    • Use Pin's built-in tools to analyze the data and generat

  • Answered by AI
  • Q11. Can you measure congestion in the system using Ping and how?
  • Ans. 

    Yes, Ping can be used to measure congestion in the system.

    • Ping measures the round-trip time for packets to travel from the source to the destination.

    • If the round-trip time is high, it indicates congestion in the network.

    • Ping can also be used to measure packet loss, which is another indicator of congestion.

  • Answered by AI
  • Q12. Explain different algorithms that applies in networking domain
  • Ans. 

    Algorithms used in networking include routing, switching, and security protocols.

    • Routing algorithms determine the best path for data to travel between devices on a network.

    • Switching algorithms determine how data is forwarded between network devices.

    • Security algorithms are used to protect data and prevent unauthorized access.

    • Examples of routing algorithms include OSPF and BGP.

    • Examples of switching algorithms include Spa...

  • Answered by AI
  • Q13. How Minimum Spanning Tree is useful in Networking Domain
  • Ans. 

    Minimum Spanning Tree helps in finding the shortest path in a network.

    • MST helps in reducing the cost of network connections.

    • It is used in network design and optimization.

    • MST algorithms like Kruskal's and Prim's are used in network routing protocols.

    • MST can be used to find the shortest path between two nodes in a network.

    • Example: MST can be used to find the shortest path for data transmission in a computer network.

  • Answered by AI
  • Q14. Define Articulation Points and what is its significance in networking
  • Ans. 

    Articulation points are nodes in a network whose removal would disconnect the network or increase the number of connected components.

    • Articulation points are also known as cut vertices.

    • They are significant in network design and analysis as they help identify critical points in the network.

    • Removing an articulation point can cause the network to split into multiple disconnected components.

    • For example, in a computer networ...

  • Answered by AI
  • Q15. You are given an array of 0s, 1s and 2s, you have to sort it. (calculating the number of 0s,1s and 2s is not counted as the solution for this problem)
  • Ans. 

    Sort an array of 0s, 1s, and 2s without counting their occurrences.

    • Use three pointers to keep track of the last index of 0s, 1s, and 2s.

    • Iterate through the array and swap elements to their respective pointers.

    • Time complexity: O(n), Space complexity: O(1).

  • Answered by AI
  • Q16. What is Denial of Service attack and what is its remedy?
  • Ans. 

    A Denial of Service (DoS) attack is an attempt to make a website or network unavailable to users by overwhelming it with traffic.

    • DoS attack floods a network or server with traffic to make it unavailable to users

    • Remedy includes implementing firewalls, load balancers, and intrusion detection systems

    • Another remedy is to use a content delivery network (CDN) to distribute traffic

    • Examples of DoS attacks include Ping of Death

  • Answered by AI
  • Q17. What is Distributed Denial of Service attack?
  • Ans. 

    DDoS is a cyber attack where multiple systems flood a targeted server with traffic to make it unavailable.

    • DDoS attack overwhelms a server with traffic from multiple sources

    • Attackers use botnets to launch DDoS attacks

    • DDoS attacks can be mitigated by using specialized software and hardware

    • Examples of DDoS attacks include the 2016 Dyn cyberattack and the 2018 GitHub attack

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: the procedure started with the written round, it had 60 questions consisting of quantitative aptitude, logical reasoning and technical(c/c++, operating systems, computer networks, data structures and algorithms).Around 120 sat for this round and they shortlisted 17.

Round: HR Interview
Experience: They shortlisted 6 candidates and asked them to sit in a room and gave two sheets consisting of 50 statements each, the first sheet had 50 positive statements and the 2nd had 50 negative statements and we had to decide whether they are most significant/significant/least significant to us. (we had to answer any 15 of them).

College Name: NA
Motivation: About PolycomPolycom is a multinational corporation that develops video, voice and content collaboration and communication technology. Polycom employs approximately 3,800 employees and had annual revenues of approximately $1.4 billion in 2013. It is the largest pure-play collaboration company in its industry. The company also licenses: H.264 video codecs, Siren codecs, session initiation protocol, Native 1080p high-definition cameras and displays, Native 720p and 1080p high-definition encoding/decoding, low-latency architecture and low bandwidth utilization, wideband advanced audio coding with low delay (AAC-LD), multichannel spatial audio with echo cancellation and interference filters to eliminate feedback from mobile devices, Optimized environmental conditioning to provide the audio and video experience; and inter-operation with legacy video conferencing (Source: -----)

Skills evaluated in this interview

Software Developer Interview Questions & Answers

user image Satya Irukulla

posted on 6 Apr 2015

Interview Preparation Tips

Round: Test
Experience: Aptitude and Logical reasoning were easy. Nothing  confusing. Prepare for the popular reasoning models and this part is done. Aptitude is just general Math. programming questions were slightly tricky. Mostly all the questions were of the format finding the output or finding the error in the code.
Tips: As i said earlier, prepare popular logical reasoning questions and try to find out some good coding rules (like difference between i++ and ++i )
Duration: 60 minutes
Total Questions: 60

Round: Technical Interview
Experience: All the questions were related to Computer Networks, Data Structures and your Resume.  Some puzzles were also asked
Tips: Be thorough with your resume. Prepare from CLRS (For any interview). and for networks, prepare for basic stuff and that should be enough.



Prepare some famous puzzles. there are many sites for this

Round: HR Interview
Experience: one simple coding question was asked not to test the coding skills, but to see how i work under pressure(The interviewer constantly asked how i could not do such a small question  and tried to annoy me) Then he gave me a situation  and asked me how i would handle it.
Tips: Keep calm and crack the interview. If you came up to this round then there is very less probability that you will be rejected. you can answer wrong in this round,but you cannot panic.

General Tips: Logical reasoning and Aptitude questions are important. Prepare for them too.
Skills: coding, theoritical knowledge , Working under pressure
College Name: IIT HYDERABAD

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more
View answer (42)

Interview questions from similar companies

Interview Questionnaire 

2 Questions

  • Q1. Multiple
  • Q2. Multiple.

Interview Preparation Tips

Round: Test
Experience: Graph problem.
First step was to formulate the question into graph problem.

Then solve using standard graph algo (Dijkstra, bellmen ford, e.tc).
Tips: Practice writing whole code without using standard library.
Duration: 3 hours
Total Questions: 1

Round: Technical Interview
Experience: Question related to dfs.
Asked about networking, OS and integers.

One puzzle.(available on geeksforgeeks)
Tips: Prepare for puzzle. Generally they go for standard puzzle.

Round: Technical Interview
Experience: It was mostly related to technical project and internship.

General discussion on machine learning.
Tips: Prepare for the projects mentioned on the resume

Round: HR Interview
Experience: He was testing me regarding how I will explain a technical project to a non-technical guy.. And also general HR questions like why u want to join Samsung and other similar questions.
Tips: Nothing new.

Skills: Basic programming stuff. , Algorithm, Graph Theory, Machine Learning, Problem Solving Skills
College Name: IIT Kharagpur

Software Developer Interview Questions & Answers

Samsung user image Gaurav Srikant Mokhasi

posted on 3 Dec 2015

Interview Preparation Tips

Round: PRE PLACEMENT OFFER
Experience: Interns (both CS and IT) were selected in my third year. Pre-placement offers were rolled out to 16 of us which was roughly a conversion ratio of 1:3. A couple of ECE hires were added when SRI-B visited campus later.

General Tips: If you're in CS or IT, this is the only format your resume should be in: -----
Take your internship seriously. Have fun and all but also get your project done. It's not the end of the world if you don't get a PPO. Campus placements are tension-filled, no doubt, but a lot of people get equally good if not better jobs after missing out on PPOs.
Make sure you talk to your manager about the PPO process. She will be the one giving you your final review. So ensure that she knows you want the job. Prepare a fancy presentation for the HR. By fancy, I mean slick and professional. Think Apple, not flashy Microsofty graphics and stupid word art.
Skill Tips: Google GSAT (Global Samsung Aptitude Test) a week before the test and make sure you practice some similar CAT type questions. Questions are of medium difficulty and time management is a real issue (most of us were unable to finish properly). - I didn't have to use these but I've heard good things about codechef/topCoder and books such as Cracking the Coding Interview by Gayle Laakmann McDowell.
Skills:
College Name: NIT Surathkal

Interview Preparation Tips

Round: Test
Experience: The first consisted of an online test which had an aptitude section which was pretty simply and then a programming section consisting of three different programs. The programs were logical required basic knowledge of array, sorting and a little bit of data structures.

Round: Technical Interview
Experience: Around 13 of us were shortlisted for the interview round, B.Tech and M.Tech included. The interview round was mostly interactive, where we had to mention about the various interns that we went through. A few programming questions were asked based on topics which we were comfortable with.
Tips: Just get used to coding, data structures and basic aptitude. GRE preparation as such helped me.

Round: HR Interview
Experience: Finally there was a HR round in which I was asked as to why I would like to work in Samsung R&D and general things about interests and future plans. On the whole Samsung took 3 B.Tech students and 2 M.Tech students when they came for placements apart from PPOs.

General Tips: Personally I feel that one should apply in only those companies in which they are sure of having job satisfaction. So don't apply to companies which you are not interested in just for the sake of having a backup because once you are placed you do not have a second chance.
Do not get dejected if you do not get through in the first few tries. Keep your hopes up and be confident when ever you get to interview rounds. Try to be assertive when giving answers. It is some times exhausting to go through placements but the moment you get placed you will have the best feeling ever.
Skill Tips: Just chill and take the test. Once you clear the online test, irrespective of your pointer if you have a good profile you can convince the interviewers.
Skills:
College Name: NIT Surathkal

Software Engineer Interview Questions & Answers

Samsung user image Shubham Srivastava

posted on 5 Feb 2016

Interview Preparation Tips

Round: Test
Experience: Written round: One programming question of 3 hours duration.All test cases were to passed.
Duration: 3 hours minutes
Total Questions: 1

Round: Technical Interview
Experience:
There were two rounds : tech PI and HR round.
A.Tech. PI: Firstly,interviewer went through my whole resume.He started asking questions from project done during summer internship.Questions were:
1.What is he project about?
2.Difference between 3G and 4G.
3.What is the aim of this research internship?
4.How much was i able to complete in two months?(I told that i am continuing as major project,since in two months time i could not get desired result).

Then, he went onto programming language i was comfortable. I answered C.
1.sizeof("shubham")
strlen("shubham")
I was asked to write output.Output would be 8 and 7. He asked why. Basic concepts should be clear.
2.Storage Classes in C-asked me concept and gave some questions to write output.
3.Constant pointers and pointers to constant. Asked to write output of snippets he gave.
4.malloc,caloc,realloc,free-syntax
5.Questions on pointers.

Basic concepts of let us C were asked mostly,that book is enough . Also see, GEEKSFORGEEKS, C section.

Operating System: Mutex and Semaphore,critical Section, Scheduling algorithms, Producer-Consumer Problem.
(Data Structures was not asked to me but others.)

Puzzles:
1. Maximum run a batsman can make in 50 overs.
2.There are 10 coins. 5 face head side and 5 as tail. You are blind folded.Make two piles of equal number of coins such that number of head in equal in both the piles.
Assumption:You can flip coin any number of times.

Question: Why do you want to join Samsung ,though placed in other company?

Questions: Any plans of future studies. I answered 'NO' only job.

Last question: Any question I would like to ask them. I asked what work would be doing in R&D. He explained me a lot of things.
Tips: 1.Be thorough with your project(done during internship or training) . You should be able to answer almost all the questions.
2.Study operating system very well if you plan to sit in samsung R&D.
3.Data structures and any one programming language.
4.Prepare puzzles as it can be asked by anyone. See programmerinterview.com etc.
5.Refer samsung archives of GEEKSFORGEEKS . Interview questions were mostly covering those.

Round: HR Interview
Experience: 1.Introduce yourself.
2.How would your friends describe you?
3.Tell the recent experiences of which makes you initiative.(i told that i am initiative,then he asked that question. So be ready with the examples,when u say any of your qualities.)
4.What is your weakness?
5.Puzzles.He asked me to fill the numbers from 1 to 8 in these 8 boxes, one number exactly once, such that no two consecutive elements are
adjacent(diagonally, horizontally or vertically) to each other.

-----/
6.Which places in India have you been?


Skills: Solving Logic Puzzles, Basic C/C++, Data Structures, Operating Systems
College Name: NIT Raipur

Interview Preparation Tips

Round: Test
Experience: Test for internship:1 aptitude test on quant and C. Around 50 were selected for internship. Next was PPO after the internship. Around 15 were selected.

General Tips: Work very hard during internship. Don't worry whether they will take you in or not.
Amazing experience it was be strong with aptitude, coding.
Skill Tips: Prepare quantitative Aptitude by R.S. Aggarwal.
Prefer Indiabix for C aptitude.
Skills:
College Name: NIT Surathkal

I was interviewed before May 2016.

Interview Preparation Tips

College Name: GPREC kurnool

I applied via Campus Placement and was interviewed in Jan 2016. There were 3 interview rounds.

Interview Preparation Tips

Round: Test
Experience: Tested basics in each subject

Round: Technical Interview
Experience: Had asked me about my projects in detail. Some DSA questions were asked. Asked to code in C for some questions.

Round: Technical Interview
Experience: Asked questions about data structures and some more algorithms. Tested in Probability and some quant.

College Name: IIT Madras

Interview Preparation Tips

Round: Resume Shortlist
Tips: It will be good to have a GPA of 8 and above

Round: Test
Experience: Questions were easy it were good at C and basic maths. Questions were distributed on all aspects of computer science such as Operating Systems, Few Output Question, Data Structures and Application layer networking . In basic aptitude most questions fall under Probability, distance and time and few others.
Duration: 60 minutes
Total Questions: 50

Skills: Communication, Basic Coding, Math Puzzle
College Name: NIT Surathkal
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Polycom Interview FAQs

What are the top questions asked in Polycom interview?

Some of the top questions asked at the Polycom interview -

  1. You are given an array of 0s, 1s and 2s, you have to sort it. (calculating the ...read more
  2. Can you measure congestion in the system using Ping and h...read more
  3. Create a structure for link list and insert two nodes in it(write the code). (S...read more

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Polycom Reviews and Ratings

based on 27 reviews

4.4/5

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3.9

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4.4

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4.3

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4.4

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