Chapter 2 : Scaling VLANs

What is the purpose of VLAN trunking protocol?

• To reduce network bandwidth

• To carry multiple VLANs over a single link

• To separate VLANs into individual links

• To increase network security

What are the differences between VTP version 1 and VTP version 2?

• VTP version 2 is older than VTP version 1.

• VTP version 1 and VTP version 2 have no differences.

• VTP version 2 supports token ring and FDDI VLANs, while VTP version 1 does not.

• VTP version 1 supports token ring and FDDI VLANs, while VTP version 2 does not.

How do you configure extended VLANs on a network switch?

• Physically rewire the network switch to include the extended VLANs

• Access the switch's configuration interface and create the VLANs using the appropriate commands.

• Install additional hardware to enable extended VLANs on the network switch

• Use a separate router to configure the extended VLANs

Explain the role of Dynamic Trunking Protocol (DTP) in VLAN scaling.

• DTP negotiates trunking mode between switches and helps in automatic creation of trunk links.

• DTP encrypts VLAN traffic

• DTP determines the root bridge for VLANs

• DTP assigns IP addresses to VLANs

What are some common inter-VLAN configuration issues and how can they be resolved?

• Ignoring VLAN assignments

• Disabling routing between VLANs

• Double-checking VLAN assignments, ensuring VLAN trunks are properly configured, and verifying that routing between VLANs is correctly set up.

• Not configuring VLAN trunks

What are the advantages of using VLAN trunking protocol in a large network?

• It increases the need for physical infrastructure and reduces network efficiency.

• It does not allow for efficient use of network resources and increases the need for physical infrastructure.

• It does not reduce the need for physical infrastructure and does not improve network efficiency.

• It allows for efficient use of network resources and reduces the need for physical infrastructure.

How does VTP version 2 improve upon the features of VTP version 1?

• Support for token ring VLANs, reduced risk of unintended VLAN deletion, and hierarchical VTP

• No support for token ring VLANs

• Non-hierarchical VTP

• Increased risk of unintended VLAN deletion

Discuss the potential security risks associated with extended VLANs and how to mitigate them.

• Implement proper access control lists (ACLs), use VLAN pruning, and regularly monitor VLAN configurations.

• Use outdated access control lists (ACLs)

• Ignore VLAN configurations

• Implement VLAN expansion without monitoring

Explain the process of enabling DTP on a network switch and its impact on VLAN scaling.

• Enabling DTP on a network switch allows for automatic negotiation of trunk links with neighboring switches, which can increase the number of VLANs supported across the network.

• Enabling DTP on a network switch causes the switch to only support a single VLAN.

• Enabling DTP on a network switch has no impact on VLAN scaling.

• Enabling DTP on a network switch reduces the number of VLANs supported across the network.

What are the potential security risks associated with VLAN hopping and how can they be mitigated?

• Implement VLAN hopping detection software and regularly monitor VLAN configurations.

• Ignore VLAN hopping risks and do not monitor VLAN configurations.

• Use outdated VLAN hopping detection software.

• Implement VLAN expansion without monitoring.