Aspiring network professionals who are preparing for the Cisco Certified Entry Networking Technician (CCENT) and Cisco Certified Network Associate (CCNA) exams will be required to demonstrate their knowledge and understanding of routing concepts. In this blog post, we will provide a sample routing scenario question that you may encounter in the CCENT and CCNA exams.

Scenario:

You are a network administrator for a small company that has recently acquired a new office location. The new office has a separate LAN, but you need to connect it to the existing LAN in the main office. The two LANs are connected by a WAN link provided by the internet service provider. You have been asked to design and configure the routing protocol to ensure that all devices in both LANs can communicate with each other.

Requirements:

• Configure the LAN in the main office with IP address range 192.168.10.0/24, and the new office LAN with IP address range 192.168.20.0/24.
• Configure a router in each LAN with the following IP addresses: 192.168.10.1 and 192.168.20.1, respectively.
• Configure a WAN link between the two routers using the IP address range provided by the ISP.
• Configure a routing protocol to ensure that all devices in both LANs can communicate with each other.

Question:

Using the scenario and requirements above, configure the routing protocol using the EIGRP (Enhanced Interior Gateway Routing Protocol) protocol. Assume that all routers are Cisco routers and that the WAN link has a bandwidth of 512 kbps. You must also ensure that the routing protocol minimizes bandwidth usage on the WAN link.

Solution:

To configure EIGRP, follow the steps below:

• Configure the IP addresses on each router’s interfaces:
• Enable EIGRP on each router:
• Configure the bandwidth of the serial link to 512 kbps:
• Configure the EIGRP metric to take into account the bandwidth of the serial link:

By configuring EIGRP with the appropriate parameters, you can ensure that all devices in both LANs can communicate with each other while minimizing bandwidth usage on the WAN link.

In conclusion, the CCENT and CCNA exams require candidates to demonstrate their ability to configure and troubleshoot routing scenarios. By practicing different routing scenarios, candidates can gain the skills and knowledge necessary to pass the exam and advance their careers in the networking field.