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Difficulty: EasyAAA Framework and Authentication Methods

A network administrator is implementing TACACS+ for centralized management of network devices. Which TWO of the following operational characteristics accurately describe TACACS+? (Select TWO)

  1. Encrypts the entire packet payload, securing all data following the TACACS+ headerAnswer
  2. Operates over TCP port 49 to provide reliable connection-oriented communicationAnswer
  3. C
    Transmits authentication and accounting traffic using UDP ports 1812 and 1813
  4. D
    Combines authentication and authorization into a single unified protocol process

Answer

TACACS+ encrypts the entire packet payload beyond the protocol header and operates over connection-oriented TCP port 49.
TACACS+ encrypts the complete packet body (payload) and communicates across network management links using TCP port 49.

Step-by-Step Solution

1
Identify transport layer protocol and port number for TACACS+.
TACACS+ uses connection-oriented TCP port 49.
TCP ensures reliable delivery and session control for administrative traffic.
2
Identify encryption boundaries of TACACS+.
TACACS+ encrypts the entire packet body following the header.
Full payload encryption ensures sensitive administrative commands and attributes remain confidential.

Key Concept

TACACS+ Protocol Architecture and Security Boundaries
Estimated Time:1m 0s
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Topics

AAA Framework and Authentication Methods

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