VLAN Ports JN0-352 Practice Questions (Page 3)

Questions 11–14

1. 11foundation · easy

   Which command shows the port mode (access or trunk) and the allowed VLANs for a specific interface?

   • Ashow arp
   • Bshow log messages
   • Cshow interfaces ge-0/0/5 extensive
   • Dshow route
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2. 12application · medium

   An administrator is troubleshooting a connectivity issue. A host connected to interface ge-0/0/5 cannot reach a server in VLAN 30. The administrator runs `show ethernet-switching interface ge-0/0/5` and sees that the interface is in VLAN 30 and the port is up. The administrator then runs `show ethernet-switching table vlan 30` and does not see the host's MAC address. What is the most likely cause?

   • AThe host is not sending any frames, so the switch has not learned its MAC address.
   • BThe host is sending frames, but the switch is not learning the MAC address because the port is administratively down.
   • CThe port is configured as a trunk and the host's VLAN is not in the allowed list.
   • DThe switch is dropping all frames on VLAN 30 due to a spanning-tree issue.
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4. 13foundation · easy

   What happens to a frame with VLAN tag 20 when it is sent out an access port assigned to VLAN 20?

   • AThe tag is removed before transmission.
   • BThe tag is kept and the frame is sent with the tag.
   • CThe tag is changed to the native VLAN tag.
   • DThe frame is dropped because access ports cannot carry VLAN 20.
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5. 14foundation · easy

   What is the purpose of the native VLAN on a Junos trunk port?

   • ATo carry untagged traffic on the trunk port
   • BTo carry management traffic on the trunk
   • CTo restrict the trunk to a single VLAN
   • DTo prioritize certain traffic on the trunk
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