CCNA Scenario Questions and Answers

CCNA Scenario Questions and Answers

Are you preparing for the CCNA exam? Do you want to test your understanding of networking concepts and practice your problem-solving skills? In this blog post, we will provide you with a range of scenario-based questions and their detailed answers to help you tackle the CCNA exam with confidence. These questions are designed to challenge your knowledge of networking protocols, troubleshooting methods, and network configuration. Let’s dive in and test your expertise!

Scenario #1: Troubleshooting Network Connectivity

Scenario: A user from the Sales department is unable to access the company’s internal server. Other users in the department can access the server without any issues. Troubleshoot and identify the possible causes of this problem.

Solution: There could be multiple reasons why the user is unable to access the server. Here are a few troubleshooting steps:

  1. Check the physical connection: Ensure that the user’s computer is properly connected to the network switch. Make sure the cables are securely plugged in.
  2. Verify IP configuration: Check if the user’s computer has a valid IP address and subnet mask configured. Use the command prompt to check the IP configuration using the “ipconfig” command.
  3. Verify DNS settings: Confirm if the user’s computer has the correct DNS server addresses configured. Incorrect DNS settings can cause connectivity issues.
  4. Check firewall settings: Ensure that there are no firewall rules blocking access to the server. Temporarily disable the firewall to test connectivity.
  5. Check server availability: Confirm if the server is up and running. Ping the server’s IP address to check if it responds. If it doesn’t respond, the server might be offline or experiencing issues.

These are just a few troubleshooting steps to identify the cause of network connectivity issues. Each situation may have unique factors to consider.

Scenario #2: Configuring VLANs

Scenario: You are tasked with creating two separate VLANs on a switch to segregate network traffic. VLAN1 will be used for the Sales department, and VLAN2 for the HR department. Both VLANs should have internet connectivity but should not be able to communicate with each other. Provide the configuration steps to achieve this.

Solution: To configure the VLANs as per the given requirements, follow these steps:

  1. Create the VLANs: Enter the switch’s configuration mode and use the “vlan” command to create two VLANs – VLAN1 for Sales and VLAN2 for HR.
  2. Assign ports to VLANs: Use the “interface” command followed by the port number to enter the interface configuration mode. Use the “switchport access vlan” command to assign each port to the respective VLAN.
  3. Configure Trunk port: To allow internet connectivity for both VLANs, configure a trunk port on the switch. Use the “interface” command followed by the trunk port’s number and then use the “switchport mode trunk” command.
  4. Enable inter-VLAN routing: By default, VLANs are isolated from each other. However, for internet connectivity, enable inter-VLAN routing by configuring a Layer 3 interface, such as a router or Layer 3 switch, and assigning IP addresses to the VLAN interfaces.

Once you have completed these steps, both VLANs will have internet connectivity but will be segregated from each other.

Scenario #3: EIGRP Routing Configuration

Scenario: You need to configure the EIGRP routing protocol on your network to provide fast convergence and load balancing. Design the network topology and provide the configuration steps.

Solution: Here’s how you can configure EIGRP routing protocol:

Network Topology:

          R1
        /    
     R2 — R3 — R4

Configuration Steps:

  1. Assign IP addresses: Assign IP addresses to each interface on the routers using the “ip address” command.
  2. Enable EIGRP: Enter EIGRP configuration mode on each router using the “router eigrp” command. Use the same autonomous system (AS) number for all routers.
  3. Configure network statements: Use the “network” command followed by the network address and wildcard mask to enable EIGRP on the desired interfaces.
  4. Verify EIGRP neighbor adjacency: Use the “show ip eigrp neighbors” command to verify if the neighboring routers have established EIGRP adjacency.
  5. Configure load balancing: To enable load balancing, use the “maximum-paths” command followed by the desired number of paths. For example, “maximum-paths 2” will allow two parallel paths.

Completing these steps will configure EIGRP on your network, providing fast convergence and load balancing.

These scenarios and their solutions provide you with a glimpse of the types of questions you might encounter in the CCNA exam. Remember to thoroughly understand the concepts and practice hands-on to excel in your exam. Good luck!

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