Correct answer & explanation
✓SGT: 16-bit security group tag assigned to traffic
SGT is the tag, SGACL is the policy, SXP propagates tags, MACsec encrypts the link.
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Same concept, more angles
1 more way this is tested on 350-401
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop each TrustSec component on the left to its matching function on the right.
medium- ✓ P1.SGT: 16-bit security tag embedded in Ethernet or IP packets
- ✓ P2.SGACL: Access control list based on source and destination SGT
- ✓ P3.SXP: Protocol to propagate SGT bindings between network devices
- ✓ P4.MACsec: IEEE 802.1AE encryption for point-to-point links
- ✓ P5.CTS: Cisco TrustSec architecture that combines SGT, SGACL, and MACsec
Why P1: SGT tags traffic, SGACL enforces policy, SXP propagates SGTs, and MACsec encrypts at Layer 2.