AAA: TACACS+ & RADIUS Practice Questions

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What is a major operational difference between TACACS+ and RADIUS protocols?

TACACS+ separates Authentication, Authorization, and Accounting functions; RADIUS combines Authentication and Authorization.

TACACS+ runs on TCP port 49, separates AAA functions independently, and encrypts the entire packet payload. RADIUS runs on UDP (1812/1813), combines AuthN and AuthZ, and encrypts only the password field.

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