Unified threat management (UTM) inspects traffic from which three protocols? (Choose three.)

Unified Threat Management (UTM) consolidates multiple security features, including antivirus, anti-spam, content filtering, and web filtering. These features operate by inspecting application-layer traffic. According to Juniper's official documentation, the antivirus and content filtering features are designed to scan protocols that transfer files and content, explicitly including FTP (File Transfer Protocol), SMTP (Simple Mail Transfer Protocol), and HTTP (Hypertext Transfer Protocol). The anti-spam feature specifically targets email protocols like SMTP, and web filtering focuses on HTTP. Therefore, these three protocols are primary targets for UTM inspection.

C. SNMP: Simple Network Management Protocol (SNMP) is used for network device management and monitoring, not for content or file transfer, making it an unsuitable target for core UTM inspection features.

E. SSH: Secure Shell (SSH) traffic is encrypted by design to ensure confidentiality. This encryption prevents standard UTM content inspection features like antivirus from analyzing the payload without decryption policies.

1. Juniper Networks Documentation

"UTM Feature Guide for Security Devices": This guide explicitly lists the protocols supported by each UTM feature.

Antivirus: "The supported protocols for file-based antivirus are HTTP

FTP

SMTP

POP3

and IMAP."

Content Filtering: "The supported protocols are HTTP

FTP

SMTP

POP3

and IMAP."

Antispam: "The supported protocols are SMTP

POP3

and IMAP."

URL: https://www.juniper.net/documentation/us/en/software/junos/utm/topics/concept/utm-overview.html

2. Juniper Networks Documentation

"Junos OS Security Configuration Guide": This guide details the configuration of security features

reinforcing that UTM policies are applied to application-layer protocols like HTTP

FTP

and SMTP to scan for threats.

URL: https://www.juniper.net/documentation/us/en/software/junos/security-overview/index.html (Refer to the UTM configuration sections within the guide for specific protocol applications).