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Riverbed Technology Software Engineer Interview Questions, Process, and Tips

Updated 9 Dec 2016

Riverbed Technology Software Engineer Interview Experiences

1 interview found

I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.

Interview Questionnaire 

9 Questions

  • Q1. How will you rotate matrix by 90 degrees clockwise and anticlockwise?
  • Ans. 

    To rotate a matrix by 90 degrees clockwise, transpose the matrix and then reverse each row. To rotate anticlockwise, reverse each row and then transpose.

    • Transpose the matrix by swapping elements at (i, j) with (j, i)

    • Reverse each row of the transposed matrix

    • To rotate anticlockwise, reverse each row of the original matrix and then transpose

  • Answered by AI
  • Q2. How will you compress images?(Told 3 methods)
  • Ans. 

    There are three common methods to compress images: lossless compression, lossy compression, and resizing.

    • Lossless compression reduces file size without losing any image quality. Examples include PNG and GIF formats.

    • Lossy compression reduces file size by discarding some image data. Examples include JPEG format.

    • Resizing reduces file size by changing the dimensions of the image. It can be done manually or using image proc

  • Answered by AI
  • Q3. Identify most recent duplicate ? {"google","yahoo","yahoo","google"}-both google and yahoo are repeated but google is first return index 3
  • Ans. 

    Identify the most recent duplicate in an array of strings.

    • Iterate through the array and keep track of the indices of each string using a hashmap.

    • If a string is already present in the hashmap, update its index.

    • After iterating through the array, find the string with the highest index in the hashmap.

  • Answered by AI
  • Q4. Two lines with 10 and 12 points, how many triangles possible?
  • Ans. 

    There are 3 possible triangles that can be formed using the two lines.

    • To form a triangle, we need three points.

    • With two lines, we have a total of four points.

    • By choosing any three points, we can form a triangle.

    • Therefore, there are 3 possible triangles.

  • Answered by AI
  • Q5. Return the element k from a BST
  • Ans. 

    The function should return the element k from a Binary Search Tree (BST).

    • Traverse the BST in-order and keep track of the current element

    • If the current element is equal to k, return it

    • If the current element is greater than k, move to the left subtree

    • If the current element is less than k, move to the right subtree

    • Repeat until the element is found or the entire tree is traversed

  • Answered by AI
  • Q6. If the element not present return the nearest element to it?
  • Ans. 

    The question is asking for a solution to find the nearest element to a given element in an array.

    • Iterate through the array and calculate the absolute difference between each element and the given element.

    • Keep track of the minimum difference encountered and the corresponding element.

    • Return the element with the minimum difference as the nearest element.

  • Answered by AI
  • Q7. About Projects in detail
  • Q8. Operating system basic like fork etc
  • Q9. Networking basics-What happens if you enter gogle.com in browser?

Interview Preparation Tips

Round: Test
Experience: The questions were on basic datastructure, algorithm , networking and operating system
Tips: If GATE qualified then minimum effort required
Duration: 1 hour 30 minutes
Total Questions: 30

Skills: Coding Skills, Critical Thinking, Operating System Basics, Networking Basics
College Name: IIT Madras

Skills evaluated in this interview

Interview questions from similar companies

Interview Preparation Tips

Round: Test
Experience: It was a blend of topics from IT,CSE and ECE. Try to concentrate on coding and networks for this round. mostly luck based

Round: Group Discussion
Experience: A very easy round. Can easily clear it if you have minimum skills

Round: Technical Interview
Experience: needs a sound knowledge in networking .

Round: HR Interview
Experience: your personality and the way you behave matters a lot. Try to be humble and truthful

General Tips: as I mentioned earlier keep trying never loose hope
Skills: communication skills, grasping power , knowledge
College Name: VIT VELLORE
Motivation: high package :P
Funny Moments: none . but had to go to bangalore for interview which was fun :)

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 Questionnaire 

6 Questions

  • Q1. Tell us about yourself ?
  • Q2. Any knowledge of Networks/DS?
  • Ans. 

    Yes

    • Knowledge of network protocols and architectures

    • Understanding of data structures and algorithms

    • Experience with network troubleshooting and analysis

    • Familiarity with network security and encryption

    • Proficiency in network programming and socket programming

  • Answered by AI
  • Q3. Which projects do you like the most?
  • Q4. How was your test ?
  • Ans. 

    The test went well, I was able to complete all the tasks within the given time frame.

    • I prepared well for the test by reviewing relevant materials

    • I managed my time effectively during the test

    • I was able to solve all the problems and complete all the tasks

    • I double-checked my work to ensure accuracy

  • Answered by AI
  • Q5. Why CISCO ? Tell something about it
  • Q6. Which companies have you applied for till day 4 ?

Interview Preparation Tips

Round: Test
Experience: 30 questions on Technical knowledge - Basic C, DS, Microprocessor, OS, Networks, Circuit Designs.
20 questions on Aptitude.
Total Questions: 50

Round: Technical Interview
Experience: It was a 25-30 minute round. Apart from the questions mentioned, they asked questions related to BTP(Signal Processing) and Microprocessor 8085.
Tips: Basic C, EE 370 and Microprocessor 8085 will be helpful. They will look for Networks related questions. Revise the related courses and attend PPTs.

Round: HR Interview
Experience: It was a 15-minute round.

General Tips: Analytical thinking is important and you should have good technical knowledge and a decent academic record.
College Name: IIT KANPUR

Skills evaluated in this interview

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

Interview Preparation Tips

Round: Test
Experience: The test was MCQ type. It comprised of questions from Operating Systems, Data Structures, Microprocessors, logical Reasoning, Aptitude and Computer Networks. No negative marking was there.
Tips: One needs to be fast as you can't spend much time on one question.
Duration: 60 minutes
Total Questions: 50

Round: Technical Interview
Experience: I was given 2 coding questions to solve and basics of oops, operating systems, data structures and networks were asked. 3-4 questions were asked in each topic mentions above. The interviewer also asked 2 puzzles which were the standard ones. He first asked me if I knew the topic or not, then only he asked me questions about it. But that doesn't mean that you can skip all the above mentions topics.
Tips: Be relaxed and confident and try to discuss your approach with the interviewer.

Round: Technical Interview
Experience: 2 Coding questions and 3-4 questions from operating systems and networks.Questions also from the mentioned projects.

Round: HR Interview
Experience: Standard HR interview with questions like what Cisco does and why they should hire you. He also asked me questions from the CV.

Tips: Be confident and mug up your cv well

Round: HR Interview
Experience: It was just a formality where he just asked about my background and whether I would be able to move to bangalore and Why I want to join Cisco.

Skills: Confidence, Problem Solving Skills, Operating System Basics, Coding Skills, Object Oriented Programming (OOP) Basics, Computer Networking, Data Strrutures
College Name: IIT Guwahati

I applied via Referral

Interview Questionnaire 

10 Questions

  • Q1. Program to print the elements of a binary tree in spiral order
  • Ans. 

    Program to print binary tree elements in spiral order

    • Use two stacks to keep track of nodes at odd and even levels

    • Push nodes from left to right in odd level stack and right to left in even level stack

    • Pop nodes from the stack alternatively and print them

    • Repeat until both stacks are empty

  • Answered by AI
  • Q2. Explain what happens underneath when you enter a URL in the browser
  • Ans. 

    Entering a URL in the browser triggers a series of events to retrieve and display the requested webpage.

    • The browser checks the cache for a previously stored copy of the webpage

    • If not found, the browser sends a request to the DNS server to resolve the domain name to an IP address

    • The browser then sends a request to the web server at the IP address for the webpage

    • The web server responds with the requested webpage

    • The brows...

  • Answered by AI
  • Q3. Explain why MAC addresses are required despite having IP addresses
  • Ans. 

    MAC addresses are required for identifying devices on a local network, while IP addresses are used for identifying devices on a global network.

    • MAC addresses are used for communication within a local network

    • IP addresses are used for communication across different networks

    • MAC addresses are assigned by the manufacturer and cannot be changed

    • IP addresses can be assigned dynamically or statically

    • MAC addresses are used in the...

  • Answered by AI
  • Q4. Solve the classical bridge and torch puzzle
  • Q5. Explain my internship project
  • Ans. 

    Developed a web application for tracking inventory and sales data

    • Used React.js for front-end development

    • Implemented RESTful APIs using Node.js and Express for back-end

    • Utilized MongoDB for database management

    • Integrated authentication and authorization features for secure access

    • Designed user-friendly interface with responsive design

  • Answered by AI
  • Q6. What is an arraylist in Java?
  • Ans. 

    An ArrayList is a dynamic array in Java that can grow or shrink in size during runtime.

    • ArrayList is a class in Java's Collection framework.

    • It implements the List interface and allows duplicate elements.

    • Elements can be added or removed using methods like add(), remove(), etc.

    • It can also be sorted using the sort() method.

    • Example: ArrayList names = new ArrayList<>();

    • names.add("John"); names.add("Mary"); names.remove(0);

Answered by AI
  • Q7. What is the difference between an arraylist and a linkedlist in Java?
  • Ans. 

    ArrayList is a resizable array while LinkedList is a doubly linked list.

    • ArrayList is faster for accessing elements while LinkedList is faster for adding or removing elements.

    • ArrayList uses contiguous memory while LinkedList uses non-contiguous memory.

    • ArrayList is better for random access while LinkedList is better for sequential access.

    • Example: ArrayList - List names = new ArrayList<>(); LinkedList - List names = new L

  • Answered by AI
  • Q8. “Java is not a pure OO language”. Justify (the answer expected was that the primitive types are not objects in Java!)
  • Ans. 

    Java is not a pure OO language due to primitive types not being objects.

    • Primitive types like int, boolean, etc. are not objects in Java

    • They do not have methods or inheritance like objects do

    • This violates the principle of everything being an object in pure OO languages

    • Wrapper classes like Integer, Boolean, etc. were introduced to provide object-like behavior for primitives

  • Answered by AI
  • Q9. What is the difference between an object oriented and object based language?
  • Ans. 

    Object-oriented languages support inheritance and polymorphism, while object-based languages do not.

    • Object-oriented languages allow for the creation of classes and objects, and support inheritance and polymorphism.

    • Object-based languages only support objects, but do not have the concept of classes or inheritance.

    • Examples of object-oriented languages include Java, C++, and Python, while JavaScript is an example of an obj

  • Answered by AI
  • Q10. Explain inheritance and abstraction with a concrete example
  • Ans. 

    Inheritance is a way to create new classes based on existing ones. Abstraction is a way to hide implementation details.

    • Inheritance allows a subclass to inherit properties and methods from a superclass.

    • Abstraction allows a class to provide a simplified interface to its users while hiding its implementation details.

    • For example, a Car class can inherit properties and methods from a Vehicle class, while also implementing i...

  • Answered by AI

    Interview Preparation Tips

    Skills:
    College Name: NA

    Skills evaluated in this interview

    I applied via Referral

    Interview Questionnaire 

    14 Questions

    • Q1. How many interviews have I attended before?
    • Q2. What value would I add to Cisco?
    • Q3. What do I know about Cisco?
    • Q4. Am I ready to work as an IT manager?
    • Ans. 

      No, as a software engineer, you may not have the necessary experience or skills to work as an IT manager.

      • Software engineers typically focus on coding and technical aspects, while IT managers are responsible for overseeing projects, teams, and budgets.

      • IT managers need strong leadership, communication, and decision-making skills, which may not be the primary focus of a software engineer.

      • Consider gaining experience in pro...

    • Answered by AI
    • Q5. Mention the layers in OSI stack
    • Ans. 

      OSI stack has 7 layers that define how data is transmitted over a network.

      • OSI stands for Open Systems Interconnection

      • Each layer has a specific function and communicates with adjacent layers

      • Layers are: Physical, Data Link, Network, Transport, Session, Presentation, Application

    • Answered by AI
    • Q6. When would I go for a router to make two computers communicate?
    • Ans. 

      A router is needed to connect two computers in different networks or to share internet connection.

      • When two computers are in different networks, a router is needed to connect them.

      • A router can also be used to share internet connection between multiple devices.

      • Routers can provide additional security features like firewall and VPN.

      • Examples of routers include Cisco, Netgear, and TP-Link.

    • Answered by AI
    • Q7. Mention the number of bits in IPv4 and IPv6 addresses
    • Ans. 

      IPv4 has 32 bits and IPv6 has 128 bits.

      • IPv4 addresses are in the format of xxx.xxx.xxx.xxx where each xxx is an 8-bit number.

      • IPv6 addresses are in the format of xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx where each xxxx is a 16-bit number.

      • IPv6 addresses allow for a much larger number of unique addresses than IPv4.

    • Answered by AI
    • Q8. What is the need for IPv6?
    • Ans. 

      IPv6 is needed due to the exhaustion of IPv4 addresses and the need for more unique IP addresses.

      • IPv6 provides a significantly larger address space compared to IPv4.

      • It allows for the allocation of unique IP addresses to every device connected to the internet.

      • IPv6 supports improved security features and better network performance.

      • It enables the growth of Internet of Things (IoT) devices and services.

      • Transitioning to IPv...

    • Answered by AI
    • Q9. How many clients are possible for a /24 address?. What is the network address and broadcast address here?
    • Ans. 

      A /24 address can have 256 clients. Network address is the first IP and broadcast address is the last IP.

      • A /24 address has 256 IP addresses

      • The network address is the first IP in the range

      • The broadcast address is the last IP in the range

    • Answered by AI
    • Q10. What is the difference between anycast, unicast, and multicast?
    • Ans. 

      Anycast, unicast, and multicast are different ways of routing network traffic.

      • Unicast is one-to-one communication between a sender and a receiver.

      • Anycast is one-to-nearest communication where the sender sends a message to the nearest receiver.

      • Multicast is one-to-many communication where the sender sends a message to a group of receivers.

      • Anycast is used for load balancing and finding the nearest server.

      • Unicast is used f...

    • Answered by AI
    • Q11. What is virtual memory? What is its size in relation to main memory?
    • Ans. 

      Virtual memory is a memory management technique that allows a computer to use more memory than physically available.

      • Virtual memory is created by using hard disk space as an extension of RAM.

      • It allows running more programs than the physical memory can handle.

      • The size of virtual memory is typically larger than the size of main memory.

      • Virtual memory is divided into pages, which are swapped in and out of main memory as nee...

    • Answered by AI
    • Q12. How do I rate myself in C, web technologies on a scale of 10?
    • Ans. 

      I rate myself 8 in C and 7 in web technologies.

      • I have extensive experience in C programming and have worked on multiple projects using it.

      • In web technologies, I have a good understanding of HTML, CSS, and JavaScript, but there is always room for improvement.

      • I am constantly learning and improving my skills in both areas.

    • Answered by AI
    • Q13. What are my strengths?
    • Ans. 

      My strengths include problem-solving skills, attention to detail, and strong programming abilities.

      • Strong problem-solving skills - able to analyze complex problems and come up with effective solutions

      • Attention to detail - meticulous in writing code and ensuring it is error-free

      • Strong programming abilities - proficient in multiple programming languages such as Java, Python, and C++

    • Answered by AI
    • Q14. The classical 3l, 5l puzzle

    Interview Preparation Tips

    Skills:
    College Name: NA

    Skills evaluated in this interview

    Interview Preparation Tips

    General Tips: Just be confident. You may not be able to answer all the questions correctly. If you don't know the answer&#44; be honest and confidently answer the questions that you know.
    College Name: NIT SURATHKAL

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

    Interview Questionnaire 

    10 Questions

    • Q1. Write a program to reverse a n integer
    • Ans. 

      Program to reverse an integer

      • Convert the integer to a string

      • Reverse the string

      • Convert the reversed string back to an integer

    • Answered by AI
    • Q2. Explain me about your projects
    • Ans. 

      I have worked on various projects including a web application for inventory management and a mobile app for task tracking.

      • Developed a web application using React for inventory management, allowing users to track stock levels and generate reports.

      • Created a mobile app using Flutter for task tracking, enabling users to create, assign, and track tasks in real-time.

      • Collaborated with a team of developers to integrate APIs an...

    • Answered by AI
    • Q3. Are you interstedoing in studying further
    • Ans. 

      Yes, I am interested in studying further to enhance my skills and knowledge in software engineering.

      • Interested in pursuing a Master's degree in Computer Science

      • Enrolling in online courses to learn new technologies and programming languages

      • Attending workshops and conferences to stay updated with industry trends

    • Answered by AI
    • Q4. Reverse a linked list without using extra memory
    • Ans. 

      Reverse a linked list without using extra memory

      • Iterate through the linked list and change the next pointers to reverse the list

      • Use three pointers - prev, current, and next - to keep track of the reversed list

      • Start with prev and current pointing to null and the head of the linked list respectively

      • While traversing the list, update the next pointer of the current node to point to the previous node

      • Move prev and current po...

    • Answered by AI
    • Q5. Explain me about all the data structures you know, tell me their advantages over others and applications
    • Ans. 

      Data structures are fundamental concepts in software engineering that organize and store data efficiently.

      • Arrays: Simple and efficient for storing and accessing elements.

      • Linked Lists: Dynamic and flexible, efficient for insertion and deletion.

      • Stacks: LIFO structure, useful for managing function calls and undo operations.

      • Queues: FIFO structure, ideal for managing tasks and scheduling.

      • Trees: Hierarchical structure, used ...

    • Answered by AI
    • Q6. What is the difference between into arr [5] and malloc (5*sizeof (int))
    • Ans. 

      The difference is that 'int arr[5]' creates an array on the stack, while 'malloc(5*sizeof(int))' allocates memory on the heap.

      • int arr[5] creates an array of 5 integers on the stack, which is a fixed-size memory allocation.

      • malloc(5*sizeof(int)) dynamically allocates memory on the heap, allowing for variable-size memory allocation.

      • The memory allocated with malloc must be explicitly freed with free() to avoid memory leaks

    • Answered by AI
    • Q7. Tell me about yourself.
    • Ans. 

      I am a passionate software engineer with a strong background in computer science and experience in developing innovative solutions.

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

      • Proficient in programming languages such as Java, Python, and C++

      • Worked on various projects including a mobile app for tracking fitness goals

      • Familiar with Agile development methodologies and version control systems like Gi

    • Answered by AI
    • Q8. Where do you want to see yourself in 5 years
    • Ans. 

      In 5 years, I see myself as a senior software engineer leading a team of developers on innovative projects.

      • Continuing to enhance my technical skills and knowledge through ongoing learning and certifications

      • Taking on more leadership responsibilities and mentoring junior team members

      • Contributing to the development of cutting-edge software solutions for the company

      • Possibly pursuing opportunities for advancement within the...

    • Answered by AI
    • Q9. Mention two weakness es
    • Ans. 

      I tend to overthink details and can be overly critical of my own work.

      • Overthinking details can lead to delays in completing tasks

      • Being overly critical can hinder progress and confidence

    • Answered by AI
    • Q10. Are you intersted in studying further
    • Ans. 

      Yes, I am interested in studying further to enhance my skills and stay updated with the latest technologies.

      • I believe continuous learning is essential in the fast-paced tech industry

      • Further studies can help me specialize in a specific area of software engineering

      • Advanced degrees or certifications can open up new career opportunities

    • Answered by AI

    Interview Preparation Tips

    Round: Technical Interview
    Experience: Asked me few simple questions related to OS and Network security

    Round: Technical Interview
    Experience: Asked me few simple questions related to OS and Network security

    College Name: IIT Madras

    Skills evaluated in this interview

    Riverbed Technology Interview FAQs

    How to prepare for Riverbed Technology Software Engineer interview?
    Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Riverbed Technology. The most common topics and skills that interviewers at Riverbed Technology expect are C++, Linux, Python, Networking and Agile.
    What are the top questions asked in Riverbed Technology Software Engineer interview?

    Some of the top questions asked at the Riverbed Technology Software Engineer interview -

    1. How will you rotate matrix by 90 degrees clockwise and anticlockwi...read more
    2. Two lines with 10 and 12 points, how many triangles possib...read more
    3. If the element not present return the nearest element to ...read more

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    Riverbed Technology Software Engineer Salary
    based on 6 salaries
    ₹4.5 L/yr - ₹23.3 L/yr
    59% more than the average Software Engineer Salary in India
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    Riverbed Technology Software Engineer Reviews and Ratings

    based on 2 reviews

    1.4/5

    Rating in categories

    3.2

    Skill development

    1.4

    Work-life balance

    5.0

    Salary

    2.9

    Job security

    2.3

    Company culture

    4.1

    Promotions

    1.4

    Work satisfaction

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