CompTIA A+ Core 2 (220-1002) — Question 163

A company is implementing multifactor authentication and requires a solution that utilizes TCP. Which of the following will the company MOST likely select?

Answer options

• A. SNMP
• B. TACACS+
• C. DHCP
• D. RADIUS
• E. Kerberos

Correct answer: B

Explanation

TACACS+ is a protocol that utilizes TCP for authentication, making it suitable for multifactor authentication implementations. While RADIUS also supports authentication, it primarily uses UDP, which does not meet the requirement for TCP. The other options, SNMP, DHCP, and Kerberos, do not serve the purpose of multifactor authentication effectively.