CCNA: Cisco Certified Network Associate — Question 569

Which type of traffic is sent with pure IPsec?

Answer options

• A. multicast traffic from a server at one site to hosts at another location
• B. broadcast packets from a switch that is attempting to locate a MAC address at one of several remote sites
• C. unicast messages from a host at a remote site to a server at headquarters
• D. spanning-tree updates between switches that are at two different sites

Correct answer: C

Explanation

Pure IPsec is designed to secure unicast traffic, which is point-to-point communication between a single sender and a single receiver. Options A, B, and D involve multicast and broadcast traffic, which are not supported by IPsec in its pure form as they do not establish a direct connection between two endpoints.