COMPUTER NETWORKING – 20 QUESTIONS
Question 1
What is a Computer Network?
(a) A collection of standalone computers
(b) A group of interconnected computers that can share resources and communicate with each other
(c) A single computer with multiple processors
(d) A system that connects monitors to CPUs
Question 2
OSI Model has how many layers?
(a) 5 layers
(b) 6 layers
(c) 7 layers
(d) 8 layers
Question 3
Which layer of the OSI model is responsible for end-to-end communication and error recovery?
(a) Network Layer
(b) Data Link Layer
(c) Transport Layer
(d) Session Layer
Question 4
LAN stands for:
(a) Large Area Network
(b) Local Area Network
(c) Logical Area Network
(d) Linear Area Network
Question 5
What is the maximum range of Bluetooth technology (in meters)?
(a) 5 meters
(b) 10 meters
(c) 50 meters
(d) 100 meters
Question 6
TCP/IP model consists of how many layers?
(a) 3 layers
(b) 4 layers
(c) 5 layers
(d) 7 layers
Question 7
Which protocol is used for sending emails?
(a) FTP
(b) HTTP
(c) SMTP
(d) POP3
Question 8
What does IP stand for in IP Address?
(a) Internet Protocol
(b) Internal Protocol
(c) International Protocol
(d) Integrated Protocol
Question 9
Which topology connects all devices to a single central cable or bus?
(a) Star Topology
(b) Ring Topology
(c) Bus Topology
(d) Mesh Topology
Question 10
DNS stands for:
(a) Domain Naming System
(b) Domain Name System
(c) Digital Name System
(d) Domain Network System
Question 11
Which device is used to connect different networks and route data between them?
(a) Hub
(b) Switch
(c) Router
(d) Modem
Question 12
What is the default port number for HTTP?
(a) 21
(b) 25
(c) 80
(d) 443
Question 13
MAC Address works at which layer of the OSI model?
(a) Physical Layer
(b) Data Link Layer
(c) Network Layer
(d) Transport Layer
Question 14
Which of the following is a connection-oriented protocol?
(a) UDP
(b) IP
(c) TCP
(d) ICMP
Question 15
What does WWW stand for?
(a) World Wide Web
(b) World Web Wide
(c) Wide World Web
(d) Web World Wide
Question 16
Which network topology provides the highest reliability but is most expensive?
(a) Star Topology
(b) Bus Topology
(c) Ring Topology
(d) Mesh Topology
Question 17
FTP uses which port number by default?
(a) 20 and 21
(b) 22 and 23
(c) 80 and 443
(d) 25 and 110
Question 18
What is the full form of VPN?
(a) Virtual Private Network
(b) Very Private Network
(c) Virtual Public Network
(d) Virtual Protected Network
Question 19
Which class of IP address provides the maximum number of host addresses?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Question 20
HTTPS uses which port number?
(a) 80
(b) 443
(c) 8080
(d) 21
ANSWER KEY
| Question No. | Correct Answer | Quick Reference |
|---|---|---|
| 1 | (b) | Network Definition |
| 2 | (c) | OSI Model |
| 3 | (c) | Transport Layer |
| 4 | (b) | Network Types |
| 5 | (b) | Bluetooth Range |
| 6 | (b) | TCP/IP Model |
| 7 | (c) | Email Protocol |
| 8 | (a) | IP Definition |
| 9 | (c) | Network Topology |
| 10 | (b) | DNS |
| 11 | (c) | Network Devices |
| 12 | (c) | HTTP Port |
| 13 | (b) | MAC Address Layer |
| 14 | (c) | TCP Protocol |
| 15 | (a) | WWW |
| 16 | (d) | Mesh Topology |
| 17 | (a) | FTP Ports |
| 18 | (a) | VPN |
| 19 | (a) | IP Classes |
| 20 | (b) | HTTPS Port |