1. What is the primary function of a router in a network?
a) To forward data packets based on IP addresses
b) To store data packets
c) To connect different devices in the same network
d) To filter data based on MAC addresses
Answer: a) To forward data packets based on IP addresses
2. Which device is responsible for forwarding data only to the destination device within a LAN?
a) Hub
b) Switch
c) Router
d) Modem
Answer: b) Switch
3. Which networking device is used to connect a computer to the internet via telephone lines or cable?
a) Router
b) Modem
c) Switch
d) Access Point
Answer: b) Modem
4. Which of the following devices is typically used to create a wireless local area network (WLAN)?
a) Modem
b) Switch
c) Access Point
d) Hub
Answer: c) Access Point
5. A device that connects different network segments and makes them function as a single network is called a:
a) Router
b) Bridge
c) Firewall
d) Gateway
Answer: b) Bridge
6. Which of the following devices helps to protect a network by filtering out unauthorized or malicious traffic?
a) Router
b) Hub
c) Firewall
d) Switch
Answer: c) Firewall
7. A device that connects different networks using different protocols and enables them to communicate is called a:
a) Router
b) Gateway
c) Modem
d) Bridge
Answer: b) Gateway
8. Which device operates at the data link layer and forwards data packets based on MAC addresses?
a) Switch
b) Router
c) Modem
d) Access Point
Answer: a) Switch
9. What is the main difference between a hub and a switch in a network?
a) A hub broadcasts data to all devices, while a switch sends data to specific devices
b) A switch broadcasts data to all devices, while a hub sends data to specific devices
c) A hub operates at Layer 3, while a switch operates at Layer 2
d) A hub is faster than a switch
Answer: a) A hub broadcasts data to all devices, while a switch sends data to specific devices
10. What does the NIC (Network Interface Card) allow a computer to do?
a) Connect to the internet through a wireless connection
b) Provide IP addresses to devices
c) Connect to a network using a wired or wireless connection
d) Manage firewall settings
Answer: c) Connect to a network using a wired or wireless connection
11. Which of the following devices is commonly used to interconnect devices within a single network, using Ethernet cables?
a) Hub
b) Router
c) Switch
d) Gateway
Answer: c) Switch
12. Which of the following statements is true about a modem?
a) A modem is used to connect devices within a LAN
b) A modem converts analog signals into digital signals and vice versa
c) A modem is used to route data packets across networks
d) A modem connects multiple devices in a wireless network
Answer: b) A modem converts analog signals into digital signals and vice versa
13. What is the main role of a network bridge?
a) To connect different types of networks
b) To increase the network’s bandwidth
c) To reduce the size of network collisions
d) To segment and extend networks
Answer: d) To segment and extend networks
14. Which device is typically used to allow multiple devices to share a single internet connection in a home network?
a) Router
b) Modem
c) Switch
d) Access Point
Answer: a) Router
15. A device that forwards data between two networks and determines the best route for the data to take is a:
a) Hub
b) Router
c) Switch
d) Access Point
Answer: b) Router
16. Which of the following networking devices operates at Layer 2 of the OSI model?
a) Router
b) Hub
c) Switch
d) Modem
Answer: c) Switch
17. What type of device is a modem in terms of the OSI model?
a) Layer 1 (Physical)
b) Layer 2 (Data Link)
c) Layer 3 (Network)
d) Layer 4 (Transport)
Answer: a) Layer 1 (Physical)
18. Which of the following is a function of a router?
a) To amplify signals over long distances
b) To direct data packets based on IP addresses
c) To connect devices in the same network
d) To transmit signals wirelessly
Answer: b) To direct data packets based on IP addresses
19. What is a key feature of a modem?
a) It can connect to the internet using Wi-Fi
b) It amplifies network signals over long distances
c) It converts digital signals to analog signals for transmission over telephone lines
d) It assigns IP addresses to networked devices
Answer: c) It converts digital signals to analog signals for transmission over telephone lines
20. Which device operates at the transport layer (Layer 4) of the OSI model?
a) Router
b) Switch
c) Firewall
d) NIC
Answer: c) Firewall
