ICND1 VLAN Management 2

Question 1

Which command verifies that VLAN 10 exists in a switch's VLAN database?

Accepted Answer

show vlan brief

Answer

The 'show vlan brief' command displays all VLANs in the VLAN database along with their names and assigned ports.

Question 2

What happens to a port's VLAN membership if you delete its assigned VLAN from the VLAN database?

Accepted Answer

The port becomes inactive and stops forwarding traffic

Answer

If a VLAN is deleted from the database while ports are still assigned to it, those ports go inactive because they belong to a non-existent VLAN.

Question 3

On a Cisco switch, which file stores VLAN configuration by default when VTP is in server or client mode?

Accepted Answer

vlan.dat

Answer

VLAN information is stored in the vlan.dat file in flash memory, separate from the startup-config.

Question 4

A switch port is configured as 'switchport mode access' on VLAN 20. Which statement is true?

Accepted Answer

The port carries untagged frames belonging to VLAN 20

Answer

Access ports carry untagged Ethernet frames; the switch internally assigns those frames to the configured access VLAN.

Question 5

Which VLAN range is reserved for Cisco internal use and cannot be created or deleted?

Accepted Answer

VLAN 1002–1005

Answer

VLANs 1002–1005 are reserved by Cisco for legacy Token Ring and FDDI and cannot be modified or deleted.

(ICND1) Interconnecting Cisco Networking Devices Part 1 Practice Test