Quess IT Staffing Solutions Network Engineer Interview Questions, Process, and Tips

Real time networking based scenarios

Q1. What is difference between a Cisco 920 series vs Cisco 903 series router
Ans. 
Cisco 920 series routers are designed for small to medium-sized businesses, while Cisco 903 series routers are designed for enterprise-level networks.
• Cisco 920 series routers are more cost-effective for smaller businesses with fewer network requirements.

• Cisco 903 series routers offer higher performance and scalability for larger, more complex networks.

• Cisco 920 series routers may have fewer ports and features compared ...read more
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Q2. How to configure a router
Ans. 
Configuring a router involves accessing the router's configuration interface and setting up various parameters.
• Access the router's configuration interface by entering the router's IP address in a web browser

• Log in using the router's default username and password or the credentials provided by the network administrator

• Navigate to the appropriate settings section to configure parameters such as network name (SSID), secur...read more
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Q3. How to remotely login a router
Ans. 
To remotely login a router, use SSH or Telnet protocols with the router's IP address and login credentials.
• Use SSH or Telnet protocols to remotely login to the router

• Enter the router's IP address in the terminal

• Provide the login credentials (username and password)

• Ensure proper network connectivity for remote access
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Q4. How to create network topology or network paths and it's type
Ans. 
Network topology is created by designing the layout of network devices and connections. Types include star, bus, ring, mesh, and hybrid.
• Identify network requirements and goals

• Select appropriate topology based on needs (e.g. star for centralized control, mesh for redundancy)

• Design layout of network devices and connections

• Implement network topology using physical or virtual components

• Test and optimize network performance
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Q5. What is difference between fiber and MW media connectivity and explain in detail
Ans. 
Fiber media connectivity uses optical fibers for data transmission, while MW media connectivity uses microwave signals.
• Fiber media connectivity uses optical fibers to transmit data through light signals

• MW media connectivity uses microwave signals to transmit data through the air

• Fiber connectivity offers higher bandwidth and longer distance transmission compared to MW connectivity

• Fiber connectivity is more secure and im...read more
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Q6. What is TCP/IP in networking
Ans. 
TCP/IP is a set of protocols that governs how data is transmitted over the internet.
• TCP (Transmission Control Protocol) ensures reliable data delivery

• IP (Internet Protocol) handles addressing and routing of data packets

• TCP/IP is the foundation of the internet and most networks today
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Q7. What is network protocol and explain some commonly known protocol with their working
Ans. 
Network protocols are rules and conventions for communication between devices on a network.
• Network protocols define how data is formatted, transmitted, received, and acknowledged in a network.

• Commonly known protocols include TCP/IP, HTTP, FTP, and DNS.

• TCP/IP is a suite of protocols that governs how data is transmitted over the internet.

• HTTP is used for transferring hypertext documents on the World Wide Web.

• FTP is used ...read more
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Q1. Network troubleshooting related questions
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