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Difficulty: EasyVLAN Configuration and Access Port Setup

A network administrator needs to assign interface GigabitEthernet0/4 on a Cisco Catalyst switch to VLAN 25. Which Cisco IOS command must be executed in interface configuration mode to set the active VLAN assignment for this access port?

  1. switchport access vlan 25Answer
  2. B
    vlan 25 access
  3. C
    switchport trunk native vlan 25
  4. D
    switchport default vlan 25

Answer

The command switchport access vlan 25 correctly assigns an access port interface to VLAN 25 in Cisco IOS.
Executing switchport access vlan 25 in interface configuration mode directly sets the VLAN associated with an operational access port. If the specified VLAN does not already exist in the switch VLAN database, Cisco IOS automatically creates it upon executing this command.

Step-by-Step Solution

1
Enter interface configuration mode for the specified port (e.g., interface GigabitEthernet0/4).
The switch prompt changes to Switch(config-if)#.
Port-specific VLAN assignments must be applied within the interface configuration context.
2
Execute switchport access vlan 25.
The port is assigned to transmit untagged traffic for VLAN 25.
The switchport access vlan <vlan-id> command sets the broadcast domain/VLAN for an access interface.

Key Concept

VLAN Configuration and Access Port Setup
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Topics

VLAN Configuration and Access Port Setup

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