In which scenario would you configure port security to allow only a limited number of MAC addresses on a switch port?

In which scenario would you configure port security to allow only a limited number of MAC addresses on a switch port?

• A. To manage bandwidth allocation
• B. To control access from specific devices
• C. To reduce electrical consumption
• D. To improve network performance

Answer: (B)

Configuring port security to allow only a limited number of MAC addresses on a switch port is primarily done to control access from specific devices. This security feature ensures that only devices with known MAC addresses can connect to that specific switch port, thereby preventing unauthorized access and potential network attacks. By limiting the number of MAC addresses, network administrators can maintain control over who is able to join the network segment and help prevent issues such as MAC flooding, which can lead to a switch being overwhelmed with traffic and potentially becoming inoperable. This configuration is particularly useful in environments where sensitive information is transmitted, or where compliance with security policies is crucial. The other choices, while important aspects of network management and performance, do not directly relate to the primary function of port security in allowing only a limited number of MAC addresses. Bandwidth allocation, electrical consumption, and overall network performance are managed through different network configurations and not specifically addressed by port security measures.

Configuring port security to allow only a limited number of MAC addresses on a switch port is primarily done to control access from specific devices. This security feature ensures that only devices with known MAC addresses can connect to that specific switch port, thereby preventing unauthorized access and potential network attacks.

By limiting the number of MAC addresses, network administrators can maintain control over who is able to join the network segment and help prevent issues such as MAC flooding, which can lead to a switch being overwhelmed with traffic and potentially becoming inoperable. This configuration is particularly useful in environments where sensitive information is transmitted, or where compliance with security policies is crucial.

The other choices, while important aspects of network management and performance, do not directly relate to the primary function of port security in allowing only a limited number of MAC addresses. Bandwidth allocation, electrical consumption, and overall network performance are managed through different network configurations and not specifically addressed by port security measures.