Which of the following devices are MOST often responsible for 802.1q tagging? (Choose two.)
A.
Switch B.
Router C.
IDS D.
Hub E.
IPS F.
Network tap.
AB.
Which of the following devices are MOST often responsible for 802.1q tagging? (Choose two.)
A.
Switch
B.
Router
C.
IDS
D.
Hub
E.
IPS
F.
Network tap.
AB.
802.1q is a protocol used for VLAN (Virtual LAN) tagging. It adds a VLAN identifier to Ethernet frames, allowing multiple VLANs to coexist on a single physical switch. When a frame is received by a switch, it uses the VLAN tag to determine the destination VLAN and forwards the frame to the appropriate port.
The devices that are most often responsible for 802.1q tagging are switches and routers.
Switches are the primary devices responsible for VLAN tagging as they are the ones that connect devices within a LAN (Local Area Network) and enable traffic to be separated into different VLANs. Switches are responsible for tagging traffic as it passes through the switch, and for stripping the tag when the traffic leaves the VLAN.
Routers, on the other hand, are responsible for routing traffic between VLANs, and they need to be aware of the VLAN tags in order to do this. Routers are responsible for tagging traffic as it enters a VLAN and for stripping the tag as it leaves the VLAN.
Therefore, options A and B (Switch and Router) are the correct choices for the devices that are most often responsible for 802.1q tagging.
Option C (IDS - Intrusion Detection System) and E (IPS - Intrusion Prevention System) are security devices that monitor network traffic for malicious activity, but they are not responsible for 802.1q tagging.
Option D (Hub) is an older device that is not used as frequently today, and it does not support VLANs or 802.1q tagging.
Option F (Network tap) is a device used to monitor network traffic by copying packets from one network segment to another, but it is not responsible for 802.1q tagging.