2.2 Configure and Verify Interswitch Connectivity 200-301 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A security admin is reviewing trunk configurations and notices that the native VLAN on a trunk is set to VLAN 1. The admin wants to reduce the risk of VLAN hopping attacks. Which change is most effective?

   • ASet the native VLAN to VLAN 1 on both ends to ensure consistency.
   • BRemove VLAN 1 from the allowed VLAN list.
   • CChange the native VLAN to an unused VLAN and set it consistently on both ends.
   • DDisable DTP on the trunk port.
   Reveal Solution Discussion Select an answer first
2. 7expert · hard

   A network admin is troubleshooting a link between two Cisco switches that is not trunking. Switch A's port is configured with 'switchport mode dynamic auto'. Switch B's port is configured with 'switchport mode dynamic auto'. What is the most likely reason the link is not a trunk?

   • AThe ports are in different VLANs, so DTP cannot negotiate.
   • BThe native VLANs are mismatched, preventing trunking.
   • CBoth ports are in dynamic auto, so neither actively initiates DTP negotiation.
   • DThe allowed VLAN lists are different, so the trunk cannot form.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What happens to untagged frames received on an 802.1Q trunk port?

   • AThey are assigned to the native VLAN of the trunk port.
   • BThey are tagged with the default VLAN ID of 4095.
   • CThey are dropped because all frames on a trunk must be tagged.
   • DThey are forwarded to all VLANs on the trunk.
   Reveal Solution Discussion Select an answer first
5. 9expert · hard

   Two switches are connected via a trunk. Switch A has native VLAN 1 and Switch B has native VLAN 99. The trunk is up, but users on VLAN 1 cannot communicate with a server connected to Switch B. The server is in VLAN 1. What is the most likely cause and the correct fix?

   • AThe trunk is not carrying VLAN 1 because it is not in the allowed list; add VLAN 1 to the allowed list.
   • BThe server is in the wrong VLAN; move the server to VLAN 99.
   • CNative VLAN mismatch; configure the same native VLAN on both switches.
   • DDTP is preventing the trunk from carrying VLAN 1; set both ports to 'switchport mode trunk'.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A network administrator is explaining interswitch connectivity to a colleague. The administrator says that a trunk port can carry traffic for multiple VLANs, while an access port carries traffic for only one VLAN. Which statement correctly describes how a trunk port handles frames from different VLANs?

   • AThe switch sends all frames untagged and relies on the receiving switch to assign them to VLANs.
   • BThe switch inserts an 802.1Q tag into each frame to identify its VLAN, except for frames on the native VLAN.
   • CThe switch encapsulates each frame with an ISL header that includes the VLAN ID.
   • DThe switch uses the source MAC address to determine the VLAN for each frame.
   Reveal Solution Discussion Select an answer first