CompTIA A+ Core 1 (220-1201) — Question 148

Which of the following is related to the creation of a secured communication channel between workstations in different locations and is supported by credentials for authentication?

Answer options

• A. DHCP
• B. CNAME
• C. VLAN
• D. VPN

Correct answer: D

Explanation

The correct answer is VPN, as it specifically refers to a Virtual Private Network that creates a secure channel for communication between different locations using authentication credentials. DHCP, CNAME, and VLAN do not provide this kind of secure communication; DHCP is for IP address assignment, CNAME is for domain name aliasing, and VLAN is for network segmentation.