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What feature of switches keeps track of which MAC address goes to each port?
SAT
Which two statements describe the operation of an access layer ethernet switch choose two?
The source MAC address within a frame is used by the switch to associate a port with that MAC address. Frames are directed by the switch from one port to another based on the destination MAC address within the frame.
Why configure a static MAC address on a port interface?
Configuring a static MAC address on a port interface helps enhance network security and stability by preventing unauthorized devices from connecting. It ensures that only specific, predetermined devices can communicate through that port, reducing the risk of MAC address spoofing and other attacks. Additionally, it can improve network performance by minimizing unnecessary MAC address learning and flooding, as the switch already knows the MAC address associated with the port.
When would a switch record multiple entries for a single switch port in its MAC address table?
A switch would record multiple entries for a single switch port in its MAC address table if it does not contain the Mac address of a particular destination in the address table. It will broadcast to all ports besides the port where entry comes from.
What would be the result if the MAC address table was flushed of dynamic entries?
The switch would broadcast frames out each port except the originating port until the switch learned all the MAC addresses connected to the switch.
Which address does a switch use for implementing port security?
The source MAC address
What address does a switch use for implementing port security?
source mac address
What information in a frame does a switch or bridge use to populate the MAC address table?
Source MAC address and source port
How an Ethernet switch sends a frame out a single port to a receiver?
The switch learns the MAC address of the device connected to a port during port initialization. It will then send data out the port based upon the destination MAC address as specified the the packet header.
What is layer 2 switching?
This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.This refers to switching at layer 2 of the OSI reference model, for example, Ethernet. A switch looks at the MAC address of each Ethernet frame ("packet", you might say, but at this level the correct name is "frame"), and if it knows that this MAC address is connected at a certain port, the switch will send the information out ONLY through that port.
What will be the effect of executing the following command on port F01 switch (config-if) switch port port-security mac-address 00C0.35F0.8301?
Executing the command switch port port-security mac-address 00C0.35F0.8301 on a port (F01) in interface configuration mode enables port security and sets a specific MAC address as the allowed device for that port. This means only the device with the MAC address 00C0.35F0.8301 will be permitted to send traffic through the port. If another device attempts to connect, the switch will either drop the traffic or shut down the port, depending on the configured violation action. This enhances network security by preventing unauthorized access.
What is a Mac table?
sometimes when interface configured with a static IP address, which is not correct, the host does not communicate to the port, and switch has no MAC address. I've seen it just two days ago - had an Linux appliance with a static IP address configured on the interface. Plugged interface to the switch, port says "Connected", but no MAC address in the CAM table. After I changed an IP address to whatever it should be for the VLAN - NIC started to communicate, and MAC address appears on the port.
