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Theoretical Questions on Computer Networking

Computer Networking is very important for interview. Here, we have listed all the commonly asked questions during the tech interview on Computer Networking

Theoretical Questions on Computer Networking
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Title
1 .
What is a network and what are the nodes present in a network?
2 .
What are the different types of network?
3 .
What are Peer-to-Peer networks and Server-based networks?
4 .
What are the Data Transmission Modes in a network?
5 .
What is network topology and types of network topology?
6 .
What are Routers, Hubs, Switches, Bridges?
7 .
What is Flow-Control in networking?
8 .
What is Error-Control in networking?
9 .
What are various Message switching techniques?
10 .
Can you connect two computers for file sharing without using a hub or router?
11 .
What are Gateways?
12 .
What is the difference between Unicasting, Anycasting, Multicasting, and Broadcasting?
13 .
What is the OSI model and how it works?
14 .
What is the TCP/IP model and how it works?
15 .
What is a TCP 3-way handshake process?
16 .
Which model is better, OSI or TCP/IP?
17 .
What is the difference between TCP and UDP?
18 .
What happens when you type a URL in the web browser?
19 .
What is Piggybacking?
20 .
What are Protocols and what are the key elements of protocols?
21 .
What is Stop and Wait protocol?
22 .
What is FTP and how does an FTP work?
23 .
What is DHCP and how does it work?
24 .
What is ARP and how does it work?
25 .
What is RIP(Routing Information Protocol)?
26 .
What is a NIC(Network Interface Card)?
27 .
What are ICMP and IGMP protocols?
28 .
What are Proxy Servers and how do they protect computer networks?
29 .
What do you mean by a Firewall?
30 .
Difference between a Firewall and Antivirus.
31 .
What is an IP address?
32 .
What is a subnet mask?
33 .
What is the concept of Subnetting and Supernetting?
34 .
What are the classes of IPV4? How to identify IP class from a given IP address?
35 .
Difference between IPV4 and IPV6.
36 .
What is DNS?
37 .
What is the difference between MAC address and IP address?
38 .
What is a Network Operating System?
39 .
Difference between a Domain and a Workgroup.
40 .
What is a VPN? Explain its working
41 .
What is localhost?
42 .
Difference between ipconfig and ifconfig?
43 .
What is Data Encapsulation in networking?
44 .
What is Pipelining?
45 .
What happens when you use cables longer than the prescribed length in a network?
46 .
What can be done to fix signal attenuation problems?
47 .
What is the maximum segment length of a 100Base-FX network?

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Janishar Ali
Founder | IIT-BHU | 10 Yrs Exp.
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Amit Shekhar
Founder | IIT-BHU | 10 Yrs Exp.