Cisco Network Engineer Interview Questions, Process, and Tips

It contained networking 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
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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...read more
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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
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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
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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.
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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
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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
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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
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Q1. Siwtching - STP,VLAN,
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Q2. Routing - BGP, RIP, IP
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Q1. CCNA RELATED QUESTIONS
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Q2. Practical and theoretical questions
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Q1. Manager call related to work.
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Q1. What are your salary expectations?
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Q2. Old company experience
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