200-301 Question 181
Single answerYou are configuring a new Cisco switch in your network. By default, all switch ports are assigned to which VLAN, and what is its primary purpose?
- A
VLAN 1, used for management and initial connectivity
- B
VLAN 100, used as a backup VLAN
- C
VLAN 1, used for user traffic and default communication
- D
VLAN 99, used for segregating management traffic
Show answer and explanation
Correct answer: A
Explanation
On Cisco switches, VLAN 1 is the default VLAN, and all switch ports are assigned to it by default. This allows for initial communication and management of the switch. However, it is a best practice to reassign management traffic to a different VLAN (e.g., VLAN 99) for security purposes. Understanding the default VLAN's role is crucial for configuring and securing a network.
- A. Correct.
VLAN 1 is the default VLAN on Cisco switches, and all ports are assigned to it by default. It is often used for management and initial communication before VLANs are reconfigured for production use.
- B. Incorrect.
VLAN 100 is not the default VLAN on Cisco switches. It can be manually configured but does not serve as the default.
- C. Incorrect.
While VLAN 1 is the default VLAN, it is not recommended for user traffic in a production environment due to security concerns. This option misrepresents its intended usage.
- D. Incorrect.
VLAN 99 is commonly used as a management VLAN in best practices but is not the default VLAN on Cisco switches. It must be explicitly configured.