Examen Cisco CCNA 1 Capitulo 4 Resuelto

Question 1: What is the purpose of IP addressing?

Solution: The primary purpose of IP addressing is to uniquely identify devices on a network. It allows packets to be properly routed between different networks and enables end-to-end communication.

Question 2: How does subnetting assist with network management?

Solution: Subnetting allows for the division of a large network into smaller, more manageable subnetworks. This enhances network performance, improves security, and simplifies network troubleshooting.

Question 3: Explain the concept of VLANs and their benefits.

Solution: VLANs (Virtual Local Area Networks) are logical groupings of devices within a network, even if they are physically located in different areas. VLANs provide improved security, better performance due to reduced broadcast traffic, and simplified network management.

Question 4: How can you ensure network security at the VLAN level?

Solution: Network security at the VLAN level can be ensured through various mechanisms such as implementing proper access control lists (ACLs), using VLAN segmentation, and configuring port security features like DHCP snooping and dynamic ARP inspection.

Question 5: Describe the role of DHCP in a network.

Solution: DHCP (Dynamic Host Configuration Protocol) is responsible for dynamically assigning IP addresses to devices on a network. It simplifies network administration by automating the IP configuration process and assists in minimizing IP address conflicts.