Which two of the following protocols are most commonly found in AAA? (Choose two.) 1 pointTCP/IPTACACS+OSPF MD5RADIUSIPSEC

To solve the question regarding which two protocols are most commonly found in AAA (Authentication, Authorization, and Accounting), let's analyze the provided options:

Step 1: Identify AAA Protocols

1. TACACS+: TACACS+ (Terminal Access Controller Access-Control System Plus) is a protocol designed specifically for AAA services. It separates the functions of authentication, authorization, and accounting.
2. RADIUS: RADIUS (Remote Authentication Dial-In User Service) is another widely used protocol for AAA services, especially for network access.

Step 2: Examine Other Options

1. TCP/IP: This is a suite of communication protocols used for interconnecting network devices but is not specifically an AAA protocol.
2. OSPF: Open Shortest Path First (OSPF) is a routing protocol and does not relate to AAA.
3. MD5: MD5 is a hashing algorithm commonly used for data integrity checks but is not specific to AAA.
4. IPSEC: Internet Protocol Security (IPSEC) is used for securing Internet Protocol communications through cryptographic services but is not related to AAA.

Final Answer

The two protocols most commonly found in AAA are:

1. TACACS+
2. RADIUS