When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame.
When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame.
When a switch port receives a frame without a VLAN tag, the switch adds a VLAN tag to the frame with the value corresponding to the Port VLAN ID (PVID). The PVID is an attribute associated with the port itself, not with the frame. Therefore, the correct interpretation of the question is that the switch adds a VLAN tag (which carries the PVID value) to the frame, not that it adds a PVID directly to the frame. Hence, the answer is false.
Indeed, when the port of a switch receives a frame that does not have a VLAN tag then a tag is added which is the same as the PVID, but the question says "add a PVID to the frame" and therein lies the error because what is added is a VLAN tag with a value equal to the PVID but not that a PVID is added. PVID stands for Port Default VLAN ID and it is the VLAN ID of an interface, that is, PVID is associated to ports not to frames. Adding a VLAN ID to the frame is not the same as adding a PVID to the frame, PVID is for ports only. For this reason the answer is false
you're being too meticulous, these question don't have traps
When an interface receives an untagged frame, the interface adds a tag with the PVID to the frame and sends the frame to the switch for processing. When an interface receives a tagged frame, the switch does not add a tag with the PVID to the frame.
When an interface receives an untagged frame, the interface adds a tag with the PVID to the frame and sends the frame to the switch for processing. When an interface receives a tagged frame, the switch does not add a tag with the PVID to the frame. https://support.huawei.com/enterprise/en/doc/EDOC1000089036/60b1f2f0/basic-concepts-of-vlan
So the answer would be A. True? why you choose B
No in fact it is a very feasible and logical answer. I did the exam a few weeks ago and and i failed for 500 points because the exam logic has that kind of tricky questions.
Resposta correta (A): True
If packet doesn't have vlan tag it will added the pvid
When a frame is received without a tag in an access port, the switch accept it and adds the PVID.
where it says acces port?
This will be false.
hello mostafiz did you take the exam ?
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After receiving an untagged frame and adds a VLAN tag carrying the PVID of the interface.
Answer A The question "When a switch port receives a frame that does not carry a VLAN tag"
PVID for untagged frames