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Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: Campus Network Architecture

  • Sample Chapter is provided courtesy of Cisco Press.
  • Date: Jun 4, 2015.

Chapter Description

This chapter from Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: (CCNP SWITCH 300-115) covers implementing VLANs and trunks in campus switched architecture, understanding the concept of VTP and its limitation and configurations, and implementing and configuring EtherChannel.

Review Questions

Use the questions here to review what you learned in this chapter. The correct answers are found in Appendix A, “Answers to Chapter Review Questions.”

  1. True or False: It is important to have the same native VLAN on both switch link partners for ISL trunking.
  2. True or False: The Cisco Catalyst 6500 supports up to 1024 VLANs in the most recent software releases.
  3. True or False: When removing the native VLAN from a trunk port, CDP, PAgP, and DTP, use the lowest-numbered VLAN to send traffic.
  4. True or False: In VTP client mode, switches can add and delete VLANs.
  5. True or False: Token Ring support is available in VTP Version 1.

Questions 6 through 8 are based on the configuration in Example 3-14.

Example 3-14 Configuration Example for Questions 6 Through 8

Catalyst6500-IOS# show run interface gigabitEthernet 3/9
Building configuration...
Current configuration : 137 bytes !
interface GigabitEthernet3/9
mtu 9216
no ip address
switchport access vlan 5
switchport trunk encapsulation dot1q
  1. If the interface in Example 3-14 negotiates trunking, what would be the native VLAN?

    1. VLAN 1
    2. VLAN 5
    3. VLAN 9216
    4. No native VLAN if the port negotiated trunking
  2. Under what condition can the interface in Example 3-14 negotiate ISL trunking?

    1. If the port is a member of an EtherChannel.
    2. If the link partner defaults to ISL trunking for negotiated ports.
    3. If the link partner is configured for trunking in the on mode.
    4. The interface cannot negotiate trunking because it is configured statically for 802.1Q trunking.
  3. Which statement is true for the configuration of the interface in Example 3-14?

    1. The interface is a member of VLAN 5 and may negotiate to a trunk port.
    2. The interface may negotiate to an ISL trunk with a native VLAN of 5.
    3. The interface may negotiate to an 802.1Q trunk and operate with a native VLAN of 1.
    4. The interface will not negotiate to a trunk port because it is configured in access VLAN 5.
    5. If a host workstation is connected to the interface, it must be configured for trunking.

Questions 9 through 11 are based on the configuration in Example 3-15.

Example 3-15 Configuration Example for Questions 9 Through 11

svs-san-6509-2# show interfaces gigabitEthernet 3/9 switchport
Name: Gi3/9
Switchport: Enabled
Administrative Mode: dynamic auto
Operational Mode: down
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 2 (VLAN0002)
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
  1. What is the trunk native VLAN based on in Example 3-15?

    1. VLAN 1
    2. VLAN 2
    3. VLAN 5
    4. No Native VLAN if the port negotiated trunking
  2. Based on Example 3-15, what statement is true if the link partner (peer switch) is configured for the dynamic trunking mode?

    1. The interface cannot negotiate to a trunk port because it is configured for dot1Q encapsulation.
    2. The interface cannot negotiate to a trunk port because the native VLAN and access VLANs are mismatched.
    3. The interface can negotiate to a trunk port if the peer is configured for the dynamic desirable trunking mode.
    4. The interface can negotiate to a trunk port if access VLAN is the same on both sides.
  3. What is the interface’s access mode VLAN in Example 3-15?

    1. VLAN 1
    2. VLAN 2
    3. VLAN 5
    4. VLAN 1001
  4. How does implementing VLANs help improve the overall performance of the network?

    1. By isolating problem employees
    2. By constraining broadcast traffic
    3. By grouping switch ports into logical communities
    4. By forcing the Layer 3 routing process to occur between VLANs
  5. What are the advantages of using local VLANs over end-to-end VLANs? (Choose two.)

    1. Eases management
    2. Eliminates the need for Layer 3 devices
    3. Allows for a more deterministic network
    4. Groups users by logical commonality
    5. Keeps users and resources on the same VLAN
  6. Which prompt indicates that you are in VLAN configuration mode of Cisco IOS?

    1. Switch#
    2. Switch(vlan)#
    3. Switch(config)#
    4. Switch(config-vlan)#
  7. Which switch port mode unconditionally sets the switch port to access mode regardless of any other DTP configurations?

    1. Access
    2. Nonegotiate
    3. Dynamic auto
    4. Dynamic desirable
  8. What information is contained in the FCS of an ISL-encapsulated frame?

    1. CRC calculation
    2. Header encapsulation
    3. ASIC implementation
    4. Protocol independence
  9. 802.1Q uses an internal tagging mechanism, where a tag is inserted after the _____ field.

    1. Type
    2. SA
    3. Data
    4. CRC
  10. Which command correctly configures a port with ISL encapsulation in Cisco IOS?

    1. Switch(config-if)# switchport mode trunk isl
    2. Switch(config-if)# switchport mode encapsulation isl
    3. Switch(config-if)# switchport trunk encapsulation isl
    4. Switch(config-if)# switchport mode trunk encapsulation isl
  11. Which command correctly sets the native VLAN to VLAN 5?

    1. switchport native vlan 5
    2. switchport trunk native 5
    3. switchport native trunk vlan 5
    4. switchport trunk native vlan 5
  12. If the Layer 2 interface mode on one link partner is set to dynamic auto, a trunk will be established if the link partner is configured for which types of interface modes in Cisco IOS? (Choose two.)

    1. Trunk
    2. Access
    3. Nonegotiate
    4. Dynamic auto
    5. Dynamic desirable
  13. What is the default VTP mode for a Catalyst switch?

    1. Client
    2. Access
    3. Server
    4. Transparent
  14. When is a consistency check performed with VTP Version 2?

    1. When information is read from NVRAM
    2. When the digest on a received VTP message is correct
    3. When new information is obtained from a VTP message
    4. When you enter new information through the CLI or SNMP
  15. Which command correctly sets the VTP version to version 1 in Cisco IOS global configuration mode?

    1. vtp v1-mode
    2. vtp v2-mode
    3. no vtp version
    4. no vtp version 2
  16. Which of the following are valid VTP Version 1 and 2 modes? (Choose all that apply.)

    1. Primary server mode
    2. Server mode
    3. Client mode
    4. Transparent mode
  17. After you complete the VTP configuration, which command should you use to verify your configuration?

    1. show vtp status
    2. show vtp counters
    3. show vtp statistics
    4. show vtp status counters
  18. What command might correct a problem with incorrect VTP passwords?

    1. password vtp 0
    2. clear vtp password
    3. clear password vtp
    4. vtp password password_string
  19. True or False: The EtherChannel would come up if one side of the EtherChannel mode is set to auto and the other to on.
  20. Which of the following solutions are provided by EtherChannel? (Choose two.)

    1. Provide redundancy
    2. Help to overcome bandwidth limitation
    3. Because of EtherChannel, can transmit more than one VLAN over the links between switches
    4. Can limit the broadcast to the local switches
  21. Which statement identifies network benefits provided by VLANs?

    1. VLANs allow you to group stations without regard to the physical location of the users.
    2. VLANs help to isolate problem employees.
    3. VLANs reduce the impact of network problems.
    4. VLANs can transmit frames to all ports in all VLANs.
  22. Match each command to its explanation.

    1. Switch(config-if)# switchport voice vlan vlan-id
    2. Switch(config-if)# switchport mode access
    3. Switch(config-if)# switchport access vlan vlan-id
    4. Switch(config-if)# switchport trunk native vlan vlan-id
    5. Switch(config-if)# switchport trunk allowed vlan add vlan-id
    6. Switch(config-if)# switchport mode trunk

      1. Configures the port to be assigned only to a single VLAN
      2. Configures the port to be assigned to multiple VLANs
      3. Configures a VLAN to be added to trunk port
      4. Configures a native VLAN for the trunk
      5. Configures a port to be a part of voice VLAN
      6. Configures a port to be a part of data VLAN
  23. How can you reset VTP revision number on a switch? (Choose two.)

    1. Set the switch to transparent mode and then to server mode.
    2. Set the switch to client mode and then to server mode.
    3. Change the VTP domain name to a nonexistent VTP domain and then back to the original name.
    4. Reload the switch.
  24. Which statement about transparent VTP mode is true?

    1. Creates, modifies, and deletes VLANs on all switches in VTP domain
    2. Creates, modifies, and deletes local VLANs only
    3. Does not forward advertisements to other switches in VTP domain
    4. Synchronizes VLAN configurations from other switches in VTP domain
  25. What is the correct command for configuring load balancing on an EtherChannel link?

    1. Switch(config)# channel-group number load-balance method
    2. Switch(config-if)# channel-group number load-balance method
    3. Switch(config-if)# port-channel number load-balance method
    4. Switch(config)# port-channel load-balance method
  26. Which of the following EtherChannel modes does not send or receive any negotiation frames?

    1. Passive
    2. Active
    3. On
    4. Desirable auto

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