Fundamentos de Redes LAN

Which of the following devices is used to segment a LAN and operates at layer 2 of the OSI model?

• Router

• Switch

• Access Point

• Modem

What topology is most common in modern LANs?

• Ring

• Mesh

• Star

• Bus

What is the main function of a switch in a LAN?

• Assign IP addresses

• Filter packets by MAC address

• Connect to the Internet

• Translate IP addresses

What protocol is used to dynamically assign IP addresses in a LAN?

• DNS

• DHCP

• FTP

• ICMP

Explain the difference between a public IP address and a private one. Give examples.

If you have the IP address 192.168.10.0/24, how many hosts can you have in this network?

Divide the network 192.168.1.0/24 into 4 equal subnets. Write the address range of each subnet.

What is the main purpose of a VLAN?

• Increase network speed

• Protect physical access

• Logically separate broadcast domains

• Connect different physical networks

What protocol is used to maintain VLAN traffic across multiple switches?

• RIP

• STP

• VTP

• 802.1Q

Briefly describe what a trunk port is and how it differs from an access port.