CISCO 500-301 Cisco Cloud Collaboration Solutions 02 25Oct2024 - Practice Quiz

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Question 1 of 30

In a corporate environment, a network engineer is tasked with ensuring that VoIP traffic can traverse the organization\'s firewall without compromising security. The firewall is configured to block all incoming traffic by default, and only specific protocols are allowed through. The engineer needs to allow SIP (Session Initiation Protocol) and RTP (Real-time Transport Protocol) traffic while maintaining strict security policies. Which of the following configurations would best achieve this goal while ensuring that the firewall remains secure against unauthorized access?

Configure the firewall to allow UDP traffic on ports 5060 (SIP) and 10000-20000 (RTP) with strict access control lists (ACLs) that limit the source IP addresses to known VoIP service providers.

Open all UDP ports to allow any VoIP traffic to pass through the firewall without restrictions.

Allow TCP traffic on port 80 for SIP signaling and block all RTP traffic to prevent any potential vulnerabilities.

Enable ICMP traffic to allow VoIP devices to communicate freely, assuming that they will negotiate the necessary ports dynamically.

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