MikroTik Certification Practice Exam

The correct answer indicates that the protocols passing from ether1 on the CPE to ether1 on the Access Point include IPv4, ARP, and DHCP.

In networking, these protocols serve specific and essential functions. IPv4 is the primary protocol used for routing and addressing packets across the network. It is essential to establish communication between devices, so it naturally would pass between the CPE and Access Point.

ARP (Address Resolution Protocol) is used to map IP addresses to MAC addresses, facilitating communication within the local area network. When a device on ether1 needs to communicate with another device, it will use ARP to figure out the correct MAC address that corresponds to its IPv4 address. This is another fundamental process occurring between these two network interface points.

DHCP (Dynamic Host Configuration Protocol) is responsible for dynamically assigning IP addresses and other network configuration to devices within a network. If the CPE is acting as a DHCP client, it would request an IP address from a DHCP server that might be residing on the Access Point or another device on the same network.

The combination of these three protocols illustrates a typical scenario where data is exchanged and configured correctly between the CPE and Access Point, ensuring devices can operate on the network effectively.