Networking Interview Questions

Computer networking is among the most important fields of IT.  Every organization that has two or more computers needs a person to administer the network.  A network can expand from two to thousands of computers. The bigger is the network the more administration is required.  To apply for the networking job, you need to have all the required sills and comprehensive knowledge about the networking technologies, concepts, services, devices, topologies, types, securities and standards.   

This article will help you to prepare yourself for the most commonly asked questions in the computer networking interview. You will find here mixed questions from basic to advance.  Being a network or systems administrator it is necessary that you know the answers of these questions.

• What is a gateway
• Define DNS and how it works.
• What you know about the DHCP
• What is ATM
• What is Frame Relay
• Define ISDN
• Define Protocols
• What you know about the network topologies
• Define a router and switch and how they works.
• Define Ethernet
• What is a network topology
• What is a firewall
• Why a PING command is used
• How to secure a computer network
• How to deal with viruses
• How to block hacking attacks
• How VOIP works
• What is a MAC address
• What is an IP address
• How many types are of network cables?
• What’s the difference between hub and switch
• What’s the difference between the workgroup and domain?
• What is RIP
• What is TCP/IP
• Define seven layers of the OSI model.
• Define OSPF
• Define Wi-Max
• What is Wi-Fi
• Define ports.
• What is internet filtering
• What is Pix firewall?
• What is WAN?
• How router works?
• What is peer-to-peer and client/server communication model.