What feature of enterprise-managed switches allows you to take all packets from a specified port, port range, or entire VLAN and mirror the packets to a specified switch port?

Homework Help: Questions and Answers: What feature of enterprise-managed switches allows you to take all packets from a specified port, port range, or entire VLAN and mirror the packets to a specified switch port?

a) Network hub
b) Promiscuous mode
c) Port mirroring
d) DHCP snooping

Answer

First, let’s understand what the question is asking: Its about for a feature of enterprise-managed switches that allows:

• Taking packets from a specific port, port range, or VLAN
• Mirroring (copying) these packets to another specified switch port

Now, let’s break down the each given options step by step to determine correct answer (option):

Given Options: Step by Step Answering

a) Network hub:

• A network hub is a simple device that connects multiple Ethernet devices. It broadcasts all incoming packets to all connected devices. This is not related to managed switches or port mirroring.

b) Promiscuous mode:

• Promiscuous mode is a feature of network interface cards (NICs) that allows them to capture all network traffic passing through the network, regardless of the destination MAC address. This is typically used by packet sniffing tools like Wireshark.

c) Port mirroring:

• Port mirroring is a feature of managed switches that allows the network administrator to mirror the traffic from one port or a group of ports to another port, typically for monitoring purposes. This matches the description in the question.

d) DHCP snooping:

• DHCP snooping is a security feature that filters untrusted DHCP messages and protects the network from rogue DHCP servers. It has no relation to port mirroring.

Final Answer

Based on the above analysis, the correct answer is:

c) Port mirroring

This feature copies network packets from one or more ports (or VLANs) and forwards them to a designated monitoring port. It allows network administrators to monitor network traffic without interrupting the flow of data.

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