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NETGEAR Interview Questions and Answers
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Anonymous
I appeared for an interview before Dec 2020.
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round was purely based on Data Structures and Algorithms . One has to be fairly comfortable in solving Algorithmic problems to pass this round . Both the questions asked were quite common and luckily I had already prepared them from CodeStudio and LeetCode.
- Q1.
Binary Tree Traversals Problem Statement
Given a Binary Tree with 'N' nodes, where each node holds an integer value, your task is to compute the In-Order, Pre-Order, and Post-Order traversals of the binar...
- Ans.
Compute the In-Order, Pre-Order, and Post-Order traversals of a Binary Tree given in level-order format.
Implement functions to perform In-Order, Pre-Order, and Post-Order traversals of a Binary Tree.
Use level-order input to construct the Binary Tree.
Traverse the Binary Tree recursively to generate the required traversals.
Ensure proper handling of null nodes represented by -1 in the input.
Return the three traversals as
- Q2.
Reverse Linked List Problem Statement
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
Input:
The first line of input is an intege... - Ans.
Reverse a singly linked list by altering the links between nodes.
Iterate through the linked list and reverse the links between nodes
Use three pointers to keep track of the current, previous, and next nodes
Update the links between nodes to reverse the list
Return the head of the reversed linked list
(1 Question)
Round duration - 45 Minutes
Round difficulty - Medium
This round basically tested some concepts from Data Structures and File Manipulation .
- Q1.
Intersection of Two Arrays Problem Statement
Given two arrays
AandBwith sizesNandMrespectively, both sorted in non-decreasing order, determine their intersection.The intersection of two arrays in...
- Ans.
The problem involves finding the intersection of two sorted arrays efficiently.
Use two pointers to iterate through both arrays simultaneously.
Compare elements at the pointers and move the pointers accordingly.
Handle cases where elements are equal and update the intersection array.
Return the intersection array as the result.
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
chandana
Interview Preparation Tips
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
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
- 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
- Q5. Why CISCO ? Tell something about it
- Q6. Which companies have you applied for till day 4 ?
Interview Preparation Tips
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
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
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
- 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...
- 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...
- 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
- 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);
- 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
- 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
- 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
- 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...
Interview Preparation Tips
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...
- 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
- 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.
- 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.
- 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...
- 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
- 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...
- 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...
- 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.
- 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++
- Q14. The classical 3l, 5l puzzle
Interview Preparation Tips
College Name: NA
Skills evaluated in this interview
I appeared for an interview in Mar 2017.
Interview Questionnaire
5 Questions
- Q1. Related to semiconductors, processors etc. were asked.
- Q2. Strength
- Q3. Weaknesses
- Q4. Hobby
- Q5. If there are 200 fishes in an aquarium. 99% are red. How many fishes have to be removed to make the red fishes 98 % in the aquarium?
- Ans.
To make the red fishes 98%, 50 fishes have to be removed from the aquarium.
Calculate 1% of 200 fishes, which is 2 fishes.
To make the red fishes 98%, subtract 1% (2 fishes) from 99% (198 fishes).
To find the number of fishes to be removed, divide the difference by 1% (2 fishes).
Therefore, 50 fishes have to be removed to make the red fishes 98%.
Interview Preparation Tips
Experience: There were 40 aptitude questions of variable difficulty. More questions revolved around topics like time and work, distance, speed, time, profit loss, age etc.
Tips: A regular and prior preparation will go a long way in determining a good test score.
Use tricks to solve the questions and calculations should be fast.
Duration: 30 minutes
Total Questions: 40
Round: Test
Experience: The questions weren't that tough when it came to programming. An example would be conversion of temperature from Celsius to Fahrenheit and vice versa. This was a question in my paper. So I'm hoping the difficulty would be more or less the same.
Tips: Do certified programming courses. They help you a lot in cracking good jobs.
Duration: 45 minutes
Total Questions: 3
Round: Puzzle Interview
Tips: This can be tough if you can't imagine scenarios and situations. So make sure you inculcate critical problem solving thinking in your everyday life. I feel that's the best way to do things in this round.
Round: Technical Interview
Experience: This was a short interview so not much happened.
Tips: Whatever you do just know your stuff properly.
Round: HR Interview
Experience: It was a simple interview. Basic questions and their basic answers helped me get through it.
Tips: The tip would be to stay positive in your approach while answering the questions
Skills: Technical Skills, Interpersonal Communication, Aptitude
College Name: VIT Vellore
Software Engineer Interview Questions & Answers
Huawei Technologies
Shiridi sai prasad
posted on 3 May 2017
I appeared for an interview before May 2016.
Interview Preparation Tips
Experience: The test was conducted through Cocubes. It was moderately difficult. Some of the questions are time taking. We need to be decisive in attempting such questions.
Tips: Need to manage time properly. Should assess and choose which questions to attempt and which ones to leave.
Duration: 1 hour
Total Questions: 30
Round: Test
Experience: The three questions are of three different levels.
1. You will be given two numbers. The first one is the starting point and the second one is the ending point of a range of integers. You have to count the number of integers in that range which are divisible by the first number.
Ex : INPUT : 3 18
OUTPUT : 6
2. You will be given a number. You have to find the sum of the digits. If the sum exceeds 9, you have to add the digits of the sum recursively until you a get a single digit sum.
EX : INPUT : 9999
OUTPUT : 9
Explanation: 9999 => 9 +9+9+9=36 => 3+6 =9
3. You will be given an array of characters which include ( L, R , or a number in the range '0' to '9'). A ball is kept on a line of integers initially kept at zero. The ball has to execute the instructions sequentially as follows:
(i) If an 'L' character is encountered, the ;position of the ball has to be decremented.
(ii) If an 'R' character is encountered, the position of the ball has to be incremented.
(iii) If an integer (in the range '0' to '9) is encountered , we have to go to that index in the array and execute the instruction present in that index.
Finally, after all the instructions are executed, you have to print the final position of the ball.
EX : INPUT :
Number of instruction : 5
Instructions: LR1R2
OUTPUT : 3
Explanation :
(i) Initially, the ball is at 0. Since the 0th index in the array is 'L' , the ball moves to 0-1= -1 position.
(ii) The 1st index is 'R' hence, the position of the ball is -1 +1 = 0 position.
(iii) The 2nd index is '1', hence we have to go to index 1 in the array which is 'R', hence the new position is 0+1 =1.
(iv) The 3rd index is 'R', hence the new position is 1 +1 =2.
(v) The 4th index is '2' , hence we have to go to 2nd index is '1' , hence we have to go again to 1st index , which is 'R' hence the final position is 2+1 =3.
Tips: We need to solve all the three the problems to have better chances of clearing this round.
Duration: 1 hour
Total Questions: 3
Round: Technical Interview
Experience: The interview was focussed majorly on coding. It went for about 45min with around 10 coding problems given to solve. Some basics of Computer networking are also tested in this round.
Tips: Be prepared with some basics of networking. As the company's main focus is on Telecom, good knowledge in telecom and networking would be a big advantage.
Round: Technical Interview
Experience: This round was focused on the aptitude and reasoning skills. Some puzzles were given in this round. These puzzles are of moderately complex and are more common ones in interviews. Like the (find the heavier ball among three balls using a balance in min no. of attempts).
Tips: Sometimes the interviewer tries to confuse. You need to be confident with your answers and explaination.
Round: HR Interview
Experience: The interview was more of a traditional HR round. Majorly concentrated on the final year project, personal strengths and weaknesses.
Skills: Coding Skills, Computer Networking, C Language Basics
College Name: G Pulla Reddy College of Engineering & Technology
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