Which statement about switch access ports is true?
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A. B. C. D.A
"If an access port receives a packet with an 802.1Q tag in the header other than the access VLAN value, that port drops the packet without learning its MAC source address."
The correct answer to this question is D. By default, access ports carry traffic for VLAN 1, not VLAN 10 as stated in the answer choice.
Access ports are a type of port on a switch that is typically used to connect end devices, such as computers or servers, to the network. Access ports carry traffic for a specific VLAN, which is usually assigned by an administrator. The purpose of assigning a VLAN to an access port is to segregate network traffic and prevent unwanted access to sensitive data.
Here are some more details about each answer choice:
A. They drop packets with 802.1Q tags. This statement is false. 802.1Q is a protocol used for VLAN tagging, and access ports are typically configured to handle untagged frames. However, if a tagged frame is received on an access port, it will simply be dropped.
B. A VLAN must be assigned to an access port before it is created. This statement is also false. A VLAN does not need to be assigned to an access port before it is created. Access ports can be created without assigning a VLAN, but they will not be functional until a VLAN is assigned.
C. They can receive traffic from more than one VLAN with no voice support This statement is false. Access ports are designed to carry traffic for a single VLAN. If traffic from multiple VLANs is received on an access port, it will be dropped.
D. By default, they carry traffic for VLAN 10. This statement is false. By default, access ports carry traffic for VLAN 1, not VLAN 10. However, this default behavior can be changed by an administrator.