CompTIA Network+ (N10-009) — Question 248

A new server is deployed in a trusted zone and is validated to be online with all appropriate services running. However, users in a perimeter network cannot access the server. Which of the following should a network administrator do to resolve the reported issue?

Answer options

• A. Create a TXT record on the DNS server for the new server.
• B. Update the firewall ACL to allow access to the new server.
• C. Configure a static route for the user VLAN to the new server.
• D. Insert a static ARP entry for the new server on the Layer 3 switch.

Correct answer: B

Explanation

The correct answer is B because updating the firewall ACL is essential to allow traffic from the perimeter network to the server in the trusted zone. Options A, C, and D do not address the core issue of access control, as they pertain to DNS records, routing configurations, and ARP entries, which are not the primary barriers to connectivity in this scenario.