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Cisco Network Engineer Interview Questions and Answers
9 Interview questions
DHCP stands for Dynamic Host Configuration Protocol, used to automatically assign IP addresses to devices on a network.
Automatically assigns IP addresses to devices on a network
Helps in managing and organizing IP addresses efficiently
Reduces the need for manual configuration
Prevents IP address conflicts
Example: When a device connects to a network, DHCP assigns it an IP address from a pool of available addresses
MAC address is a unique identifier assigned to network interfaces for communications on a network.
MAC address stands for Media Access Control address
It is a 12-digit hexadecimal number (e.g. 00:1A:2B:3C:4D:5E)
Used to identify devices on a network at the data link layer of the OSI model
REST APIs are a set of rules and conventions for building and interacting with web services using HTTP methods.
REST stands for Representational State Transfer
Uses standard HTTP methods like GET, POST, PUT, DELETE
Data is transferred in JSON or XML format
Stateless communication between client and server
Example: Twitter API allows developers to access and interact with Twitter data
A dangling pointer is a pointer that points to a memory location that has been deallocated or freed.
Dangling pointers can lead to crashes or unpredictable behavior in a program.
They can occur when a pointer is not updated after the memory it points to is freed.
Example: accessing a dangling pointer after freeing the memory it points to can result in a segmentation fault.
A router is a networking device that forwards data packets between computer networks, while a switch is a networking device that connects devices within a network.
Router operates at the network layer of the OSI model
Switch operates at the data link layer of the OSI model
Router connects multiple networks together
Switch connects devices within the same network
Router uses IP addresses to route traffic
Switch uses MAC ...
Routing is the process of selecting the best path for network traffic to reach its destination.
Routing involves determining the optimal path for data packets to travel from the source to the destination.
Routers use routing tables to make decisions on how to forward packets based on destination IP addresses.
Routing protocols like OSPF, BGP, and EIGRP are used to exchange routing information between routers.
Static r...
Networks are a collection of interconnected devices that communicate with each other to share resources and information.
Networks can be wired or wireless
They can be local (LAN) or wide area (WAN)
They use protocols such as TCP/IP to facilitate communication
Examples include the internet, corporate networks, and home networks
The OSI model has 7 layers that define how data is transmitted over a network.
Layer 1: Physical - deals with the physical connection of devices
Layer 2: Data Link - responsible for error-free transfer of data between devices
Layer 3: Network - handles routing of data between different networks
Layer 4: Transport - ensures reliable delivery of data between applications
Layer 5: Session - establishes and manages connect...
Yes, there are seven layers in the OSI model.
The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has a specific function and communicates with the layers above and below it.
The OSI model is used to standardize communication between different computer systems.
Examples of protocols that operate at each layer include Ethernet at the Data Link layer and HTTP...
Cisco Network Engineer Interview Experiences
7 interviews found
Saiteja Chitturi
I applied via LinkedIn and was interviewed in Jun 2024. There were 2 interview rounds.
It contained networking questions
(2 Questions)
- Q1. What is router &switch
- Ans.
A router is a networking device that forwards data packets between computer networks, while a switch is a networking device that connects devices within a network.
Router operates at the network layer of the OSI model
Switch operates at the data link layer of the OSI model
Router connects multiple networks together
Switch connects devices within the same network
Router uses IP addresses to route traffic
Switch uses MAC addre...
- Q2. How is routing done
- Ans.
Routing is the process of selecting the best path for network traffic to reach its destination.
Routing involves determining the optimal path for data packets to travel from the source to the destination.
Routers use routing tables to make decisions on how to forward packets based on destination IP addresses.
Routing protocols like OSPF, BGP, and EIGRP are used to exchange routing information between routers.
Static routin...
Skills evaluated in this interview
Anonymous
Selected
I appeared for an interview before Jan 2024.
Online Aptitude test for 1 hour.
(2 Questions)
- Q1. What is MAC address
- Ans.
MAC address is a unique identifier assigned to network interfaces for communications on a network.
MAC address stands for Media Access Control address
It is a 12-digit hexadecimal number (e.g. 00:1A:2B:3C:4D:5E)
Used to identify devices on a network at the data link layer of the OSI model
- Q2. What is DHCP
- Ans.
DHCP stands for Dynamic Host Configuration Protocol, used to automatically assign IP addresses to devices on a network.
Automatically assigns IP addresses to devices on a network
Helps in managing and organizing IP addresses efficiently
Reduces the need for manual configuration
Prevents IP address conflicts
Example: When a device connects to a network, DHCP assigns it an IP address from a pool of available addresses
(2 Questions)
- Q1. What is a dangling pointer
- Ans.
A dangling pointer is a pointer that points to a memory location that has been deallocated or freed.
Dangling pointers can lead to crashes or unpredictable behavior in a program.
They can occur when a pointer is not updated after the memory it points to is freed.
Example: accessing a dangling pointer after freeing the memory it points to can result in a segmentation fault.
- Q2. What are REST APIs
- Ans.
REST APIs are a set of rules and conventions for building and interacting with web services using HTTP methods.
REST stands for Representational State Transfer
Uses standard HTTP methods like GET, POST, PUT, DELETE
Data is transferred in JSON or XML format
Stateless communication between client and server
Example: Twitter API allows developers to access and interact with Twitter data
(2 Questions)
- Q1. Why do you want to do job in the networking industry
- Ans.
I am passionate about designing and troubleshooting complex networks to ensure seamless communication and connectivity.
I enjoy the challenge of solving technical problems and optimizing network performance
I am fascinated by the constantly evolving technology in the networking industry
I value the opportunity to work with cutting-edge equipment and software
I appreciate the importance of reliable and secure networks in to...
- Q2. What are your goals
- Ans.
My professional goal is to become a certified network expert and lead a team in implementing cutting-edge networking solutions.
Obtain certifications such as CCNA, CCNP, or JNCIA to enhance my skills
Lead a team in designing and implementing network infrastructure upgrades
Stay updated on the latest networking technologies and trends
Contribute to the success of the organization by optimizing network performance
Sarvodaya us
I applied via Approached by Company and was interviewed before Oct 2023. There was 1 interview round.
(2 Questions)
- Q1. Siwtching - STP,VLAN,
- Q2. Routing - BGP, RIP, IP
I applied via Recruitment Consulltant and was interviewed in Sep 2021. There were 4 interview rounds.
(2 Questions)
- Q1. CCNA RELATED QUESTIONS
- Q2. Practical and theoretical questions
(1 Question)
- Q1. Manager call related to work.
(2 Questions)
- Q1. What are your salary expectations?
- Q2. Old company experience
Interview Preparation Tips
- CCNA
- Attitude
- Passion
- Self confidence
- CCNA certification
I applied via Monster and was interviewed before Feb 2021. There was 1 interview round.
(2 Questions)
- Q1. The networking and it's communicating way and about network and it's type.
- Q2. What are you understand by networks.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jan 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. What are he layers of the OSI model?
- Q2. There are seven layers in OSI model
- Ans.
Yes, there are seven layers in the OSI model.
The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has a specific function and communicates with the layers above and below it.
The OSI model is used to standardize communication between different computer systems.
Examples of protocols that operate at each layer include Ethernet at the Data Link layer and HTTP at t...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Company Website and was interviewed before Feb 2021. There were 3 interview rounds.
(1 Question)
- Q1. Network related qs and Ans
(1 Question)
- Q1. Your physiology-based scenario with your future career.
Interview Preparation Tips
- All networking basis questions
Top trending discussions
Interview questions from similar companies
I appeared for an interview in Jul 2017.
Interview Questionnaire
1 Question
- Q1. What is your favorite day
- Ans.
My favorite day is Sunday because it's a day of relaxation and spending time with loved ones.
I enjoy sleeping in and having a leisurely breakfast on Sundays.
I like to spend time outdoors or engage in hobbies on Sundays.
Sunday is a day for family gatherings and quality time with loved ones.
Interview Preparation Tips
Experience: Any thoughts
Tips: No
Round: Test
Experience: Any thoughts
Tips: No
Total Questions: 20
Round: Test
Experience: No
Tips: No
Duration: 1 hour
Total Questions: 20
Interview Questionnaire
3 Questions
- Q1. Why do you want to join this company?
- Ans.
I am excited to join this company because of its reputation for innovation and commitment to employee growth.
I am impressed by the company's track record of developing cutting-edge software solutions.
I appreciate the emphasis on professional development and growth opportunities for employees.
I am excited about the prospect of working with a talented and dedicated team.
I believe that this company's values align with my ...
- Q2. Who is your role model?
- Ans.
My role model is Elon Musk.
I admire his innovative thinking and determination to push boundaries.
His ability to lead multiple successful companies is inspiring.
His focus on sustainable energy and space exploration aligns with my values.
I strive to emulate his work ethic and passion for making a positive impact on the world.
- Q3. What extra-curricular activities have you been involved in?
- Ans.
I have been involved in various extra-curricular activities such as volunteering, sports, and music.
Volunteered at local animal shelter
Played on intramural basketball team
Participated in school choir
Attended coding workshops and hackathons
Interview Preparation Tips
Experience: I consulted my seniors for preparation of my resume. I believe that seniors provide the best possible insights in this regards. I had a standard resume for all the companies.
Round: Test
Experience: I had prepared for the CAT examination which helped me in these written tests. The first round was the written test. The criterion for the written test was to have a CGPA more than 6.0. There was an aptitude test and a technical test. The technical test consisted of programming questions based on C++ and data structures. From data structures they asked a lot questions based on tree traversals and from C++. A large number of questions from pointers and arrays were also asked.
The aptitude test was slightly easier than the CAT examination standards. Majority of the questions were related to data interpretation and some were of based on logical reasoning. The total duration of the both the tests combined was 90 minutes.
Around 50 people appeared for the first round and nearly 13 got shortlisted for the next round.
Tips: For the written tests, particularly the aptitude section, if would really help if you have prepared for the CAT examination. There is a book written by an author named R.S. Agarwal which would prove to be beneficial from the point of view of these written tests.
Duration: 90 minutes
Round: Group Discussion
Experience: I did not prepare much for the GD’s. However I did keep myself abreast with certain latest happenings.There were no group activities conducted in the recruitment process of Century Link.
Round: HR Interview
Experience: For HR interviews I prepared answers to some frequently asked HR questions. I found these questions on the internet. Generally the questions asked in the interviews are related to the profile on offer; for instance in A2Z interview I was asked a lot of questions from power systems since it was a core company and in Century Links I was asked questions from C++ and data structures since they had come to recruit for a software engineering profile.
Round: Technical Interview
Experience: In this interview I was questioned on my C++ and data structure knowledge. They asked me questions on pointers and further asked me to explain the concept of dangling pointers. They did not want me to write down the complete code with proper syntax's of the problems asked to me. They only asked me to write the algorithms of the various problems.
They also asked me some puzzles. Unfortunately, I was not able to solve any of them. During the course of the interview they asked me to specify the reason for my keen interest in joining an IT company.
At the end of first interview some candidates were shortlisted and called for the second round of interview.
Round: Technical Interview
Experience: The second interview was conducted by a senior company official. He enquired about my project and again, like in the first interview, asked me to state the reason for my interest in joining an IT company.This interview round was an elimination round.
Round: HR Interview
Experience: The interview was an HR interview. Candidates who reached till this interview were all selected; basically this interview was like a formality to check the candidate’s fit with the company.
College Name: IIT ROORKEE
Motivation: I had never heard of the company before the recruitment season. I attended the PPT organised by the company, I found the company to be a well reputed/established company and thus applied to it. The profile was open for Electrical, Computer Science, Mechanical and Electronics engineering students.
Karthik C
Interview Preparation Tips
Experience: Was accepted through the pre placement offer after a satisfactory internship during the summer.
There was a small test after the internship. Work done in the internship in co-ordination with mentor, employees and manager has more weight-age.
General Tips: Just brush up on your fundamentals. The questions asked will just be a direct or indirect applications of what you have learnt. Good programming practice is also needed.
Good knowledge about Operating systems, Data structures, Networking and Programming is what they generally look for while hiring.
A good internship project helped in securing the PPO.
Skills:
College Name: NIT Surathkal
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Overall Interview Experience Rating
based on 7 interview experiences
Difficulty level
Duration
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Cisco Network Engineer Reviews and Ratings
based on 39 reviews
Rating in categories
|
Software Engineer
2.8k
salaries
|  ₹12 L/yr - ₹44 L/yr |
|
Technical Consulting Engineer
677
salaries
| ₹9.8 L/yr - ₹30 L/yr |
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Senior Software Engineer
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| ₹14 L/yr - ₹52 L/yr |
|
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404
salaries
| ₹3.8 L/yr - ₹13.1 L/yr |
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Technical Lead
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