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15 Networking Interview Questions and Answers

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In this article, we will learn some frequently asked networking interview questions. It will help you to improve your career in networking.

Here is 15 Networking Interview Questions & Answer

Q #1) What is a Network?

A-Network is the combination of several devices which can share data with each other.

Example, several computers are connected together in a network to share their data, resources.

Q #2) What is Network Topology?

network-topology

A-Network topology is known as the arrangement of networking devices in a systematic way like arranging computer, printer, etc.

Q #3) What is a Node in computer network?

A-In a network all the devices are connected with each other through a transmission medium like cables. The node is known as the point where all the cables get connected.

Q #4) What are Routers in computer network?

A-Router is an internetworking device which connects one network with another network.

The router works in both local area network and wide area network.

Q #5) What is Hub in computer network?

USB-hubs

A-Hub is a networking device which works in the physical layer to transfer the data. Also, it is a broadcasting device. Because, when a device sends data to a targeted computer, hub broadcast the data to every device of that network.

Know more about Networking Hub.

Q #6) What is Switch in computer network?

A-Switch is a multi-port bridge. The switch has individual paths for every connected device. It maintains a Content Addressable Memory(CAM) table to store the port number and MAC address of every connected device.

Q #7) What is the OSI reference model?

A-OSI reference Model is known as Open System Interconnection. It is the reference model which defines how to communicate between the devices of a network.

Q #8) What is TCP?

A-Its full form is Transmission Control Protocol. TCP transmits data in the form of packets. During transmission, if any data packets lost then TCP will request to the sender for resending the data packet.

Q #9) What is HTTP?

A-It stands for Hypertext Transfer Protocol, that means all the webpages are transmitted with this protocol.

Q #10) What is HTTPs in computer network?

A-It stands for Hypertext Transfer Protocol Secure, that means it is also transmitted webpages in the cypher form. So, it’s more secure than HTTP.

Q #11) What is a Firewall? 

A-A firewall is a device which is used to prevent the unauthorised access to a network device or a computer. It is a software program, also, it can be a hardware device. It also secures the network from getting affected by malicious programs.

Q #12) What is DNS?

A-It sands for Domain Name Server. It stores the Ip addresses and their hostname.

For example, every website is hosted in a server. So, when a user types any website name on his/her browser then the service provider will request to DNS. Then it will find the domain name and the corresponding IP address of that website and show the web content to the user.

Q #13) What is a Proxy Server?

vpn

A-A proxy server is known as a gateway between the user and the internet. In other words, it acts like a middle person.

For example, a user wants to access a website without providing his/her device IP address. In this case, the proxy server will hide the users IP address from the website.

Q #14) What is NIC?

A-It stands for Network Interface Card. It is an ethernet card which helps a computer to connect with a network.

Q #15) What is Data Encapsulation?

A– In a network, data are sent or received in the form of packets. After that with the help of the OSI model, the IP header is added to the data packets.
Then Data Link Layer encapsulates those packets which contain the destination device address.

FAQs

What are good questions to ask a potential employee?

Firstly, Career Goal Type Questions.
Secondly, Best Type of Interview Questions.
Thirdly, Introductory Type Questions.
Then, Handling Conflict Type Questions.
And then Teamwork Type Questions.

Always give your 100 per cent in your work… unless you’re donating blood.

Akhil Mondal
Always give your 100 per cent in your work… unless you’re donating blood.
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