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Computer Networking Interview Questions/Answers (Freshers, Experienced) PDF

Computer Networking Interview Questions/Answers

Onlooker, here on this page we are providing you Computer Networking Interview Questions with Answers. Freshers as well as experienced candidates who are preparing computer networking section for interview must need its questions with answers. 

In the below section we, team of recruitmentresult.com supplying you the questions of Computer Networking. By gazing throughout this page, you can get the trouble-free way to overcome with your problems in computer networking. You can get different Questions with Answers which might be asked at the time of an interview. Let’s Go!

Q1 Define Network?

A network is a set of devices which in which two or more nodes are connected by a physical linked or more than two networks.

Q2 what is a Link?

A link refers to the connectivity between two devices which includes the type of cables and protocols that are used in order to communicate one device with the other.

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Q3 what is Protocol?

A protocol is a set of rules that govern all aspects of information communication.

Q4 Name the factors that affect the performance of the network?

  • Number of Users
  • Type of transmission medium
  • Hardware
  • Software

Q5 what is a LAN?

LAN is short for Local Area Network. It refers to the connection between computers and other network devices that are located within a small distance location.

Q6 Describe Network Topology?

Network Topology refers to the layout of a computer network. It shows how devices and cables are physically laid out, as well as how they connect to one another.

Q7 what is WAN?

WAN (Wide Area Network), is an interconnection of computers and devices that are geographically dispersed. It connects networks that are located in different regions and countries.

Q8 Describe Network Topology?

Network Topology refers to the layout of a computer network. It shows how devices and cables are physically laid out, as well as how they connect to one another.

Q9 Describe star topology?

Star topology consists of a central hub that connects to nodes. This is one of the easiest to setup and maintain.

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Q10 what are gateways?

Gateways provide connectivity between two or more network segments. It is usually a computer that runs the gateway software and provides translation services. This translation is a key in allowing different systems to communicate on the network.

Q11 what is the use of a default gateway?

Default gateways provide means for the local networks to connect to the external network. The default gateway for connecting to the external network is usually the address of the external router port.

Q12 what common software problems can lead to network defects?

Software related problems can be any or a combination of the following:

  • Client server problems
  • Application conflicts
  • Error in configuration
  • Protocol mismatch
  • Security issues
  • User policy and rights issues

Q13 Explain the importance of authentication?

Authentication is the process of verifying a user’s credentials before he can log into the network. It is normally performed using a username and password. This provides a secure means of limiting the access from unwanted intruders on the network.

Q14. Explain profile in terms of networking concept?

Profiles are the configuration settings made for each user. A profile may be created that puts a user in a group, for example.

Q15 Differentiate between hub and switch.

  • Hub is a layer 1 device while Switch is layer 2 device.
  • Hub works on single collision and single broadcast domain while switch works on per port collision and single broadcast domain.

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Q16. What is NIC?

  • NIC stands for Network Interface Card.
  • It is a peripheral card attached to a PC to helps it connect to a network.

Q17. What are the advantages of fiber optics cable?

The advantages of fiber optics cable over twisted pair cable are Noise resistance-As they use light so external noise is not a factor. Less signal attenuation-fiber optics transmission distance is significantly greater than that of other guided media. Higher bandwidth-It can support higher bandwidth.

Q18. Define IP?

Internetwork protocol (IP) is the transmission mechanism used by TCP/IP protocol. It is an unreliable and connectionless datagram protocol. It provides no error checking and tracking.

Q19. What do you mean by redundancy?

Redundancy is the concept of sending extra bits for use in error detection. Three common redundancy methods are parity check, cyclic redundancy check (CRC), and checksum.

Q20. Define TCP?

It is connection oriented protocol. It consist byte streams originating on one machine to be delivered without error on any other machine in the network. While transmitting it fragments the stream to discrete messages and passes to interne layer. At the destination it reassembles the messages into output stream.

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