WorksheetsNetwork and Simulation Workshop
Total questions: 25
Worksheet time: 9mins
1. What is a computer network?
A single computer
A group of connected computers
A computer program
A printer
2. Which device is used to connect multiple computers in a network?
Modem
Switch
Scanner
Monitor
3. Which network covers a small area like a home or office?
WAN
MAN
LAN
PAN
4. A switch works mainly on which address?
IP address
Port number
MAC address
URL
5. Which OSI layer does a switch work on?
Physical layer
Network layer
Application layer
Data Link layer
6. What does a switch do with incoming data after learning MAC addresses?
Broadcasts to all networks
Sends data to the correct device
Deletes data
Floods to all interfaces
7. A router is mainly used to connect:
Computers in the same LAN
Different networks
Printers only
Switches only
8. Which address does a router use to route the data?
Serial number
IP address
MAC address
Port number
9. Which OSI layer does a router work on?
Transport layer
Data Link layer
Application layer
Network layer
10. What is the purpose of an IP address?
To identify a network device
To store files
To print documents
To secure data
11. IP address is used to identify a network device in ___ network
any
the
a
an
12. Which of the following is a valid IP address?
192.268.1.50
00:1A:2B:3C:4D:5E
192.168.1.1
192.168.1.256
13. How many bytes are in an IPv4 address?
4
6
16
32
14. A MAC address is:
Assigned by ISP
Assigned by network admin
A hardware address
A software address
15. How many bits are in a MAC address?
16
32
48
64
16. Which of the following looks like a MAC address?
192.168.10.5
255.255.255.0
20:01:16:a4:2c:4d:e2
00:1A:2B:3C:4D:5E
17. Which device connects different networks together?
Hub
Switch
Router
Repeater
18. A hub sends data to:
Only the destination device
All connected devices
Only the router
Only the firewall
19. Which networking device provides security by filtering traffic?
Hub
Switch
Router
Firewall
20. Which device does NOT use MAC or IP addresses?
Router
Switch
Hub
Firewall
21. Which IP class has a default subnet mask of 255.255.255.0?
Class A
Class B
Class C
Class D
22. Which IP address belongs to Class A?
127.160:5.10
112.168.1,1
126.5.2.1
10:1.1.1
23. Classful IP addressing does NOT support:
Fixed subnet masks
Efficient IP usage
Network classes
Default subnet masks
24. Which of the following represents classless IP addressing?
192.168.1.1
172.16.0.1/16
10.0.0.1
224.0.0.5
25.The subnet mask of IP 192.168.1.20/16 is 255.255.255.0
True
False
